{ "site": "https://batterypayback.co.uk", "generated": "2026-10-26", "status": "live", "note": "Only facts whose quote was found verbatim at the source are included.", "items": [ { "id": "feit:vat-solar-batteries", "topic": "VAT on solar panels and batteries", "facts": [ { "statement": "HMRC states that the reduced VAT rate of 5% applies from 1 April 2027 onwards.", "quote": "From 1 April 2027 onwards these will revert to the reduced rate of VAT of 5%.", "source_url": "https://www.gov.uk/guidance/vat-on-energy-saving-materials-and-heating-equipment-notice-7086", "source_type": "officieel", "pdf": false, "valid": { "from": "2027-04-01", "to": null, "quote": "From 1 April 2027 onwards these will revert to the reduced rate of VAT of 5%." }, "read_on": "2026-10-19", "check": "ok" }, { "statement": "HMRC includes retrofitting a battery to store electricity generated by qualifying energy-saving materials.", "quote": "the retrofitting of a battery for storing electricity generated by one or more qualifying energy-saving materials (solar panels, wind turbines and water turbines);", "source_url": "https://www.gov.uk/hmrc-internal-manuals/vat-energy-saving-materials-and-grant-funded-heating-supplies/vensav3061", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "HMRC includes installing a standalone battery to store grid electricity.", "quote": "the installation of a standalone battery for storing electricity from the grid (the mains electricity);", "source_url": "https://www.gov.uk/hmrc-internal-manuals/vat-energy-saving-materials-and-grant-funded-heating-supplies/vensav3061", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "Supplying energy-saving materials without installing them is standard-rated.", "quote": "However, if you supply energy-saving materials without installing them your supply will be standard-rated.", "source_url": "https://www.gov.uk/guidance/vat-on-energy-saving-materials-and-heating-equipment-notice-7086", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "HMRC’s notice covers Northern Ireland too: guidance on the time-limited zero rate for homes there, with effect from 1 May 2023, was added to it.", "quote": "Guidance on the time-limited zero rate of VAT for installations of energy-saving materials installed in residential accommodation in Northern Ireland, with effect from 1 May 2023, has been added.", "source_url": "https://www.gov.uk/guidance/vat-on-energy-saving-materials-and-heating-equipment-notice-7086", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "HMRC states that the zero rate for specified energy-saving materials runs from 1 May 2023 to 31 March 2027.", "quote": "A zero rate applies to the installation of certain specified energy-saving materials from 1 May 2023 to 31 March 2027.", "source_url": "https://www.gov.uk/guidance/vat-on-energy-saving-materials-and-heating-equipment-notice-7086", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" } ], "partly_being_verified": true }, { "id": "feit:seg-scheme", "topic": "How the Smart Export Guarantee works", "facts": [ { "statement": "Mandatory SEG licensees have at least 150,000 domestic electricity customers.", "quote": "Mandatory SEG Licensee - if they have at least 150,000 domestic electricity customers as at 31 December of the immediately preceding year.", "source_url": "https://www.ofgem.gov.uk/environmental-and-social-schemes/smart-export-guarantee-seg/electricity-suppliers", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "A SEG tariff rate must be above zero.", "quote": "any SEG tariff rate offered must always be above zero.", "source_url": "https://www.ofgem.gov.uk/environmental-and-social-schemes/smart-export-guarantee-seg/electricity-suppliers", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "Ofgem states that adding battery storage is possible where the export meter separately measures electricity from the eligible installation.", "quote": "as long as the export meter is still able to measure the amount of electricity generated/exported from the installation separately from any other source.", "source_url": "https://www.ofgem.gov.uk/sites/default/files/2024-04/Guidance%20for%20generators%20-%20Co-location%20of%20electricity%20storage%20and%20hydrogen%20production%20under%20the%20RO,%20FIT,%20REGO%20%20and%20SEG%20v6.1.pdf", "source_type": "officieel", "pdf": true, "pdf_page": 64, "read_on": "2026-10-19", "check": "ok" }, { "statement": "SEG licensees must pay for stored electricity subsequently exported where it is guaranteed to come only from the SEG installation.", "quote": "SEG Licensees are obligated to make SEG payments when the electricity stored in co-located storage and subsequently exported can be guaranteed to only have come from the SEG installation (green export).", "source_url": "https://www.ofgem.gov.uk/sites/default/files/2024-04/Guidance%20for%20generators%20-%20Co-location%20of%20electricity%20storage%20and%20hydrogen%20production%20under%20the%20RO,%20FIT,%20REGO%20%20and%20SEG%20v6.1.pdf", "source_type": "officieel", "pdf": true, "pdf_page": 64, "read_on": "2026-10-19", "check": "ok" }, { "statement": "Ofgem says that if your export meter also records electricity from another source, such as grid power stored in a battery, and cannot tell how much, the supplier does not have to make SEG payments.", "quote": "Where the export meter for an eligible installation also records, but cannot determine the amount of, electricity exported from another source (\"brown export\"), a SEG licensee is not obliged to make SEG payments.", "source_url": "https://www.ofgem.gov.uk/sites/default/files/2024-04/Guidance%20for%20generators%20-%20Co-location%20of%20electricity%20storage%20and%20hydrogen%20production%20under%20the%20RO,%20FIT,%20REGO%20%20and%20SEG%20v6.1.pdf", "source_type": "officieel", "pdf": true, "read_on": "2026-10-22", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Ofgem states that SEG payments are calculated from export meter readings.", "quote": "SEG payments are calculated by using export meter readings.", "source_url": "https://www.ofgem.gov.uk/environmental-and-social-schemes/smart-export-guarantee-seg", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" } ], "partly_being_verified": true }, { "id": "feit:mcs", "topic": "MCS certification", "facts": [ { "statement": "SEG requires installation and installer certification through MCS or an accredited equivalent.", "quote": "certified through the microgeneration certification scheme (MCS) or a scheme accredited as equivalent", "source_url": "https://www.gov.uk/government/publications/smart-export-guarantee-seg-earn-money-for-exporting-the-renewable-electricity-you-have-generated", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "SEG requires a meter capable of half-hourly export readings.", "quote": "meter capable of providing half-hourly export readings", "source_url": "https://www.gov.uk/government/publications/smart-export-guarantee-seg-earn-money-for-exporting-the-renewable-electricity-you-have-generated", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "MCS publishes a battery installation standard.", "quote": "MIS 3012: 2025 ISSUE 1.0", "source_url": "https://mcscertified.com/wp-content/uploads/2025/02/MIS-3012-2025-V1.0.pdf", "source_type": "officieel", "pdf": true, "pdf_page": 1, "read_on": "2026-10-19", "check": "ok" }, { "statement": "Compliance with the battery standard is mandatory for contractors certified to the stated MCS framework.", "quote": "Compliance with this Standard is mandatory for MCS Contractors certified to MCS: 2025.", "source_url": "https://mcscertified.com/wp-content/uploads/2025/02/MIS-3012-2025-V1.0.pdf", "source_type": "officieel", "pdf": true, "pdf_page": 6, "read_on": "2026-10-19", "check": "ok" }, { "statement": "BUS installations must be carried out by MCS-certified installers.", "quote": "All BUS installations must be carried out by MCS-certified installers.", "source_url": "https://www.ofgem.gov.uk/sites/default/files/2026-04/boiler_upgrade_scheme_guidance_for_property_owners_V5_20260424143313.pdf", "source_type": "officieel", "pdf": true, "pdf_page": 19, "read_on": "2026-10-19", "check": "ok" }, { "statement": "Ofgem directs consumers to the MCS installer search tool.", "quote": "MCS have a “Find an installer” tool on their website", "source_url": "https://www.ofgem.gov.uk/sites/default/files/2026-04/boiler_upgrade_scheme_guidance_for_property_owners_V5_20260424143313.pdf", "source_type": "officieel", "pdf": true, "pdf_page": 19, "read_on": "2026-10-19", "check": "ok" }, { "statement": "The MCS tool can verify an installer’s certification for the relevant technology.", "quote": "You can also use the tool to check and verify that a renewable installer is MCS certified for the technology you are having installed.", "source_url": "https://mcscertified.com/find-an-installer/", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "The register accepts an installer name or certification number.", "quote": "Search by installer name or certification number", "source_url": "https://mcscertified.com/find-an-installer/", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "The solar installation standard states the scope of its mandatory compliance requirement.", "quote": "Compliance with this Standard is mandatory for MCS Contractors certified to MCS: 2025.", "source_url": "https://mcscertified.com/wp-content/uploads/2026/03/MIS-3002-2025-V2.0-Final.pdf", "source_type": "officieel", "pdf": true, "read_on": "2026-10-22", "pdf_page": 6, "check": "ok" } ], "partly_being_verified": true }, { "id": "feit:planning-permitted-development", "topic": "Planning permission and permitted development", "facts": [ { "statement": "Planning Portal states that residential solar installations may be permitted development.", "quote": "may be 'permitted development' with no need to apply to the local authority for planning permission.", "source_url": "https://www.planningportal.co.uk/permission/common-projects/solar-panels/planning-permission/", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "Welsh guidance says listed buildings require planning permission and may also require listed building consent.", "quote": "If your property is a listed building installation will require planning permission and is likely to require an application for listed building consent.", "source_url": "https://www.gov.wales/planning-permission-solar-panels", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "Scottish guidance permits conservation-area installations on a rear elevation, subject to its further restrictions.", "quote": "In a conservation area, development is permitted provided the solar panels and equipment are mounted on a rear elevation", "source_url": "https://www.gov.scot/publications/circular-1-2024-householder-permitted-development-rights/pages/6/", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "Northern Ireland guidance highlights conservation areas and listed buildings as cases where permission may be needed.", "quote": "You may have to get planning permission to fit a PV system, especially in conservation areas or on listed buildings.", "source_url": "https://www.nidirect.gov.uk/articles/photovoltaic-panels", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "The government battery guide says home batteries generally do not require planning permission, while advising a local council check.", "quote": "Planning permission is not generally required for home batteries but you should double check with your local council’s planning office.", "source_url": "https://cleanenergy.campaign.gov.uk/battery/", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "Scottish dwelling solar permitted development excludes listed buildings and their curtilage.", "quote": "Development is not permitted on a listed building or within the curtilage of a listed building.", "source_url": "https://www.gov.scot/publications/circular-1-2024-householder-permitted-development-rights/pages/6/", "source_type": "officieel", "pdf": false, "read_on": "2026-10-20", "check": "ok" }, { "statement": "The Scottish dwelling solar class also excludes World Heritage Sites.", "quote": "(ii) within a World Heritage Site.", "source_url": "https://www.gov.scot/publications/circular-1-2024-householder-permitted-development-rights/pages/6/", "source_type": "officieel", "pdf": false, "read_on": "2026-10-20", "check": "ok" }, { "statement": "England: the dwellinghouse wall projection limit differs when the wall adjoins a highway.", "quote": "where the wall abuts on a highway, the solar PV or solar thermal equipment protruding more than 0.2 metres beyond the plane of the wall", "source_url": "https://www.legislation.gov.uk/uksi/2015/596/schedule/2/part/14", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "England: the other dwellinghouse wall case has a separate projection limit.", "quote": "in any other case, the solar PV or solar thermal equipment protruding more than 0.4 metres beyond the plane of the wall", "source_url": "https://www.legislation.gov.uk/uksi/2015/596/schedule/2/part/14", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "England: the dwellinghouse pitched-roof projection exclusion is stated separately.", "quote": "the solar PV or solar thermal equipment protruding more than 0.2 metres beyond the roof slope", "source_url": "https://www.legislation.gov.uk/uksi/2015/596/schedule/2/part/14", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "England: listed dwellinghouses and their curtilage buildings are excluded from this permitted-development class.", "quote": "the solar PV or solar thermal equipment would be installed on a dwellinghouse, or on a building within the curtilage of a dwellinghouse, if the dwellinghouse is a listed building", "source_url": "https://www.legislation.gov.uk/uksi/2015/596/schedule/2/part/14", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "England: the protected-area exclusion covers a highway-facing wall or enclosure.", "quote": "in the case of land within a conservation area or which is a World Heritage Site, the solar PV or solar thermal equipment would be installed on a wall, balcony or roof enclosure which fronts a highway", "source_url": "https://www.legislation.gov.uk/uksi/2015/596/schedule/2/part/14", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "Scotland: the dwelling solar-equipment projection restriction is stated in the guidance.", "quote": "No part of the solar panel equipment may protrude more than 1m from the surface of the wall, roof plane, roof ridge or chimney.", "source_url": "https://www.gov.scot/publications/circular-1-2024-householder-permitted-development-rights/pages/6/", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "Scotland: conservation-area siting is restricted to the stated elevations.", "quote": "In a conservation area, development is permitted provided the solar panels and equipment are mounted on a rear elevation or a side elevation if that side elevation does not front a road.", "source_url": "https://www.gov.scot/publications/circular-1-2024-householder-permitted-development-rights/pages/6/", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "Scotland: redundant solar equipment must be removed.", "quote": "Where the solar panel equipment is no longer needed or is incapable of generating heat or electricity, as the case may be, it must be removed as soon as is reasonably practical.", "source_url": "https://www.gov.scot/publications/circular-1-2024-householder-permitted-development-rights/pages/6/", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "Wales: visible panels on the principal or side elevation walls in protected areas require consent.", "quote": "If your property is in a conservation area, or in a World Heritage Site planning consent is required when panels are to be fitted on the principal or side elevation walls and they are visible from the highway.", "source_url": "https://www.gov.wales/planning-permission-solar-panels", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "nidirect, the Northern Ireland government site, tells you to check with your divisional planning office before a solar system is installed.", "quote": "Always check with your divisional planning office about planning issues before you have a system installed.", "source_url": "https://www.nidirect.gov.uk/articles/photovoltaic-panels", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" } ], "partly_being_verified": true }, { "id": "feit:g98-g99", "topic": "G98/G99 notification to the network operator", "facts": [ { "statement": "The ENA guide gives the single-phase equivalent as 16 A per phase and 3.68 kW.", "quote": "16 A per phase corresponds to 3.68 kW", "source_url": "https://www.ssen.co.uk/globalassets/our-services/generation-connections/generator-requirement-docs/240815-2024-dg-guides-combined-document.pdf", "source_type": "officieel", "pdf": true, "pdf_page": 24, "read_on": "2026-10-19", "check": "ok" }, { "statement": "The guide explicitly includes electricity storage devices.", "quote": "this includes electricity storage devices", "source_url": "https://www.ssen.co.uk/globalassets/our-services/generation-connections/generator-requirement-docs/240815-2024-dg-guides-combined-document.pdf", "source_type": "officieel", "pdf": true, "pdf_page": 24, "read_on": "2026-10-19", "check": "ok" }, { "statement": "For the described microgenerator notification route, the installer must notify the DNO within 28 days.", "quote": "Your installer must notify the DNO within 28 days", "source_url": "https://www.ssen.co.uk/globalassets/our-services/generation-connections/generator-requirement-docs/240815-2024-dg-guides-combined-document.pdf", "source_type": "officieel", "pdf": true, "pdf_page": 44, "read_on": "2026-10-19", "check": "ok" }, { "statement": "The ENA guide says the 16 A limit counts all generation in one home together: 3.68 kW on a single-phase supply and 11.04 kW on a three-phase supply.", "quote": "16 A per phase corresponds to 3.68 kW on a single-phase supply and 11.04 kW on a three-phase supply and refers to the aggregate micro-generator capacity installed in a single premises", "source_url": "https://www.ssen.co.uk/globalassets/our-services/generation-connections/generator-requirement-docs/240815-2024-dg-guides-combined-document.pdf", "source_type": "officieel", "pdf": true, "read_on": "2026-10-22", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "The ENA guide says a battery used together with solar panels is likely to take the total above 16 A per phase, so EREC G99 applies.", "quote": "electricity storage devices in conjunction with PV (or other technologies) to offset consumption, the total connected generation is likely to be above 16A / phase and hence EREC G99 applies", "source_url": "https://www.ssen.co.uk/globalassets/our-services/generation-connections/generator-requirement-docs/240815-2024-dg-guides-combined-document.pdf", "source_type": "officieel", "pdf": true, "read_on": "2026-10-22", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "The ENA guide says network operators run a fast-track application for some home-scale batteries, last revised in November 2022.", "quote": "DNOs have implemented a fast-track application process (last revised November 2022), for some domestic scale electricity storage", "source_url": "https://www.ssen.co.uk/globalassets/our-services/generation-connections/generator-requirement-docs/240815-2024-dg-guides-combined-document.pdf", "source_type": "officieel", "pdf": true, "read_on": "2026-10-22", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" } ], "partly_being_verified": true }, { "id": "feit:solar-yield", "topic": "Solar generation per kWp", "facts": [ { "statement": "JRC provides a non-interactive API with the same outputs as its PVGIS interface.", "quote": "The outputs obtained with the non-interactive service are exactly the same as those obtained with the PVGIS interface.", "source_url": "https://joint-research-centre.ec.europa.eu/photovoltaic-geographical-information-system-pvgis/using-pvgis-5/api-non-interactive-service_en?prefLang=hu", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "The API supports JSON output.", "quote": "outputformat=json JSON output.", "source_url": "https://joint-research-centre.ec.europa.eu/photovoltaic-geographical-information-system-pvgis/using-pvgis-5/api-non-interactive-service_en?prefLang=hu", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "PVGIS states that its GET endpoints continue to use query parameters.", "quote": "GET endpoints are unaffected and still use query parameters.", "source_url": "https://photovoltaic-geographic-information-system.ec.europa.eu/api/release-notes", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "PVGIS estimates 1018.84 kWh a year for 1 kWp of solar panels in London, facing south at 35° with 14% system losses.", "quote": "\"E_y\":1018.84", "source_url": "https://re.jrc.ec.europa.eu/api/v5_3/PVcalc?lat=51.507&lon=-0.128&peakpower=1&loss=14&angle=35&aspect=0&outputformat=json", "source_type": "officieel (EU JRC, PVGIS)", "pdf": false, "read_on": "2026-10-22", "pvgis": { "plaats": "London", "lat": 51.507, "lon": -0.128, "kwh_per_kwp_jaar": 1018.84, "maanden_kwh": [ 40.71, 53.19, 86.55, 114.55, 119.45, 122.59, 123.21, 110.37, 95.22, 68.51, 48.18, 36.33 ], "database": "PVGIS-SARAH3" }, "getoetst_via": "toets_codex.py (Claude)", "check": "ok" }, { "statement": "PVGIS estimates 1041.7 kWh a year for 1 kWp of solar panels in Cardiff, facing south at 35° with 14% system losses.", "quote": "\"E_y\":1041.7", "source_url": "https://re.jrc.ec.europa.eu/api/v5_3/PVcalc?lat=51.481&lon=-3.179&peakpower=1&loss=14&angle=35&aspect=0&outputformat=json", "source_type": "officieel (EU JRC, PVGIS)", "pdf": false, "read_on": "2026-10-22", "pvgis": { "plaats": "Cardiff", "lat": 51.481, "lon": -3.179, "kwh_per_kwp_jaar": 1041.7, "maanden_kwh": [ 36.54, 53.79, 89.22, 119.92, 132.51, 131.04, 129.28, 113.09, 96.01, 65.34, 42.69, 32.26 ], "database": "PVGIS-SARAH3" }, "getoetst_via": "toets_codex.py (Claude)", "check": "ok" }, { "statement": "PVGIS estimates 968.06 kWh a year for 1 kWp of solar panels in Birmingham, facing south at 35° with 14% system losses.", "quote": "\"E_y\":968.06", "source_url": "https://re.jrc.ec.europa.eu/api/v5_3/PVcalc?lat=52.486&lon=-1.89&peakpower=1&loss=14&angle=35&aspect=0&outputformat=json", "source_type": "officieel (EU JRC, PVGIS)", "pdf": false, "read_on": "2026-10-22", "pvgis": { "plaats": "Birmingham", "lat": 52.486, "lon": -1.89, "kwh_per_kwp_jaar": 968.06, "maanden_kwh": [ 37.24, 51.59, 84.07, 108.17, 117.29, 117.05, 118.06, 106.16, 90.13, 62.79, 42.37, 33.15 ], "database": "PVGIS-SARAH3" }, "getoetst_via": "toets_codex.py (Claude)", "check": "ok" }, { "statement": "PVGIS estimates 886.08 kWh a year for 1 kWp of solar panels in Manchester, facing south at 35° with 14% system losses.", "quote": "\"E_y\":886.08", "source_url": "https://re.jrc.ec.europa.eu/api/v5_3/PVcalc?lat=53.48&lon=-2.242&peakpower=1&loss=14&angle=35&aspect=0&outputformat=json", "source_type": "officieel (EU JRC, PVGIS)", "pdf": false, "read_on": "2026-10-22", "pvgis": { "plaats": "Manchester", "lat": 53.48, "lon": -2.242, "kwh_per_kwp_jaar": 886.08, "maanden_kwh": [ 26.87, 44.61, 78.06, 104.7, 113.1, 110.69, 108.09, 96.99, 80.98, 56.38, 37.45, 28.18 ], "database": "PVGIS-SARAH3" }, "getoetst_via": "toets_codex.py (Claude)", "check": "ok" }, { "statement": "PVGIS estimates 902.72 kWh a year for 1 kWp of solar panels in Edinburgh, facing south at 35° with 14% system losses.", "quote": "\"E_y\":902.72", "source_url": "https://re.jrc.ec.europa.eu/api/v5_3/PVcalc?lat=55.953&lon=-3.188&peakpower=1&loss=14&angle=35&aspect=0&outputformat=json", "source_type": "officieel (EU JRC, PVGIS)", "pdf": false, "read_on": "2026-10-22", "pvgis": { "plaats": "Edinburgh", "lat": 55.953, "lon": -3.188, "kwh_per_kwp_jaar": 902.72, "maanden_kwh": [ 28.69, 46.39, 78.63, 105.86, 119.55, 110.93, 113.05, 101.94, 82.0, 55.91, 37.56, 22.21 ], "database": "PVGIS-SARAH3" }, "getoetst_via": "toets_codex.py (Claude)", "check": "ok" }, { "statement": "PVGIS estimates 918.76 kWh a year for 1 kWp of solar panels in Belfast, facing south at 35° with 14% system losses.", "quote": "\"E_y\":918.76", "source_url": "https://re.jrc.ec.europa.eu/api/v5_3/PVcalc?lat=54.597&lon=-5.93&peakpower=1&loss=14&angle=35&aspect=0&outputformat=json", "source_type": "officieel (EU JRC, PVGIS)", "pdf": false, "read_on": "2026-10-22", "pvgis": { "plaats": "Belfast", "lat": 54.597, "lon": -5.93, "kwh_per_kwp_jaar": 918.76, "maanden_kwh": [ 29.57, 47.45, 80.63, 108.14, 122.36, 116.17, 110.04, 100.63, 81.28, 58.08, 38.08, 26.32 ], "database": "PVGIS-SARAH3" }, "getoetst_via": "toets_codex.py (Claude)", "check": "ok" } ], "partly_being_verified": true }, { "id": "feit:self-consumption", "topic": "Self-consumption with and without a battery", "facts": [ { "statement": "Energy Saving Trust says a battery can store excess solar electricity or charge when a tariff is cheap.", "quote": "You can use the battery to store any excess electricity generated by the panels, or you can charge it up when the tariff is cheap.", "source_url": "https://energysavingtrust.org.uk/advice/battery-storage/", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "MCS provides a method covering domestic solar self-consumption with and without storage.", "quote": "A method to determine the Electrical Self-Consumption of Domestic\nSolar PV Installations with and without Storage", "source_url": "https://mcscertified.com/wp-content/uploads/2022/04/MGD-003-Solar-PV-Self-Consumption-Issue-2.0-Final.pdf", "source_type": "officieel", "pdf": true, "read_on": "2026-10-22", "pdf_page": 1, "check": "ok" }, { "statement": "MCS cautions that the estimate is not a prediction for a particular customer.", "quote": "the self-consumption value should\nnot be treated as a performance prediction for that specific customer", "source_url": "https://mcscertified.com/wp-content/uploads/2022/04/MGD-003-Solar-PV-Self-Consumption-Issue-2.0-Final.pdf", "source_type": "officieel", "pdf": true, "read_on": "2026-10-22", "pdf_page": 18, "check": "ok" }, { "statement": "The worked examples show different self-consumption percentages without storage.", "quote": "Self-consumption without EESS, % 29% 39%", "source_url": "https://mcscertified.com/wp-content/uploads/2022/04/MGD-003-Solar-PV-Self-Consumption-Issue-2.0-Final.pdf", "source_type": "officieel", "pdf": true, "read_on": "2026-10-22", "pdf_page": 19, "check": "ok" }, { "statement": "The worked examples show different self-consumption percentages with storage.", "quote": "Self-consumption with EESS, % 69% 88%", "source_url": "https://mcscertified.com/wp-content/uploads/2022/04/MGD-003-Solar-PV-Self-Consumption-Issue-2.0-Final.pdf", "source_type": "officieel", "pdf": true, "read_on": "2026-10-22", "pdf_page": 19, "check": "ok" } ], "partly_being_verified": true }, { "id": "feit:install-cost", "topic": "Installation costs", "facts": [ { "statement": "Energy Saving Trust states that domestic solar panel systems are around 4.5 kWp and cost around £7,600.", "quote": "around 4.5 kWp and cost around £7,600", "source_url": "https://energysavingtrust.org.uk/advice/solar-panels/?loc=england", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "Energy Saving Trust states that battery storage tends to cost around £5,000 to £8,000.", "quote": "Battery storage tends to cost around £5,000 to £8,000.", "source_url": "https://energysavingtrust.org.uk/advice/solar-panels/?loc=england", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" } ], "partly_being_verified": false }, { "id": "feit:bus", "topic": "Boiler Upgrade Scheme", "facts": [ { "statement": "The grant for an air source air-to-water heat pump is £7,500.", "quote": "£7,500 towards an air source heat pump (sometimes called an air-to-water heat pump)", "source_url": "https://www.gov.uk/apply-boiler-upgrade-scheme/print", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "The grant for a ground source heat pump is £7,500.", "quote": "£7,500 towards a ground source heat pump (including water source heat pumps and those on shared ground loops)", "source_url": "https://www.gov.uk/apply-boiler-upgrade-scheme/print", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "BUS is open in England and Wales.", "quote": "This scheme is open to people in England and Wales.", "source_url": "https://www.gov.uk/apply-boiler-upgrade-scheme/print", "source_type": "officieel", "pdf": false, "read_on": "2026-10-19", "check": "ok" }, { "statement": "BUS installations must be carried out by MCS-certified installers.", "quote": "All BUS installations must be carried out by MCS-certified installers.", "source_url": "https://www.ofgem.gov.uk/sites/default/files/2026-04/boiler_upgrade_scheme_guidance_for_property_owners_V5_20260424143313.pdf", "source_type": "officieel", "pdf": true, "pdf_page": 19, "read_on": "2026-10-19", "check": "ok" }, { "statement": "Where no valid EPC is available, the installer can provide alternative eligibility evidence.", "quote": "Otherwise, your installer will need to provide alternative evidence to demonstrate eligibility.", "source_url": "https://www.ofgem.gov.uk/sites/default/files/2026-04/boiler_upgrade_scheme_guidance_for_property_owners_V5_20260424143313.pdf", "source_type": "officieel", "pdf": true, "pdf_page": 23, "read_on": "2026-10-19", "check": "ok" }, { "statement": "Ofgem states that the scheme has been extended to 2030.", "quote": "As of 28 April 2026, the scheme has been extended to 2030.", "source_url": "https://www.ofgem.gov.uk/sites/default/files/2026-04/boiler_upgrade_scheme_guidance_for_installers_V5_20260424143058.pdf", "source_type": "officieel", "pdf": true, "valid": { "from": "2026-04-28", "to": null, "tot_jaar": "2030", "quote": "As of 28 April 2026, the scheme has been extended to 2030." }, "pdf_page": 6, "read_on": "2026-10-19", "check": "ok" } ], "partly_being_verified": false }, { "id": "feit:price-cap", "topic": "Ofgem price cap", "facts": [ { "statement": "Ofgem gives an average electricity unit rate of 26.32 pence per kWh and 54.83 pence daily standing charge for Direct Debit across England, Scotland and Wales.", "quote": "26.32 pence per kWh 54.83 pence daily standing charge", "source_url": "https://www.ofgem.gov.uk/your-energy-supply/your-energy-bill/energy-price-cap-unit-rates-and-standing-charges", "source_type": "officieel", "pdf": false, "valid": { "from": "2026-10-01", "to": "2026-12-31", "quote": "Energy price cap from 1 October to 31 December 2026" }, "read_on": "2026-10-19", "check": "ok" }, { "statement": "Ofgem states that electricity bills have no VAT during the stated period.", "quote": "The government has removed VAT from electricity bills from 1 October 2026 to 31 March 2027.", "source_url": "https://www.ofgem.gov.uk/news/changes-energy-price-cap-between-1-october-and-31-december-2026", "source_type": "officieel", "pdf": false, "valid": { "from": "2026-10-01", "to": "2027-03-31", "quote": "The government has removed VAT from electricity bills from 1 October 2026 to 31 March 2027." }, "read_on": "2026-10-19", "check": "ok" }, { "statement": "Ofgem gives a medium standard single-rate electricity TDCV of 2,500 kWh per year.", "quote": "Standard single-rate meters, kWh per year)\nUsage Level 2023 TDCV 2026 TDCV Change\nLow 1,800 1,600 -200\nMedium 2,700 2,500 -200", "source_url": "https://www.ofgem.gov.uk/sites/default/files/2026-05/Review%20of%20typical%20domestic%20consumption%20values%20decision.pdf", "source_type": "officieel", "pdf": true, "read_on": "2026-10-20", "pdf_page": 7, "check": "ok" }, { "statement": "The updated TDCVs apply from 1 July 2026.", "quote": "We will implement the updated TDCV values from 1 July 2026.", "source_url": "https://www.ofgem.gov.uk/consultation/review-typical-domestic-consumption-values", "source_type": "officieel", "pdf": false, "read_on": "2026-10-20", "valid": { "from": "2026-07-01", "to": null, "quote": "We will implement the updated TDCV values from 1 July 2026." }, "check": "ok" }, { "statement": "Ofgem lists the next announcement date as 25 November 2026 for the period 1 January 2027 to 31 March 2027.", "quote": "25 November 2026 – period 1 January 2027 to 31 March 2027", "source_url": "https://www.ofgem.gov.uk/news/changes-energy-price-cap-between-1-october-and-31-december-2026", "source_type": "officieel", "pdf": false, "read_on": "2026-10-22", "check": "ok" } ], "partly_being_verified": true }, { "id": "feit:seg-tarieven", "topic": "Export (SEG) rates by supplier", "facts": [ { "statement": "Octopus Outgoing pays 12p per kWh.", "quote": "12p per kWh", "source_url": "https://octopus.energy/smart/outgoing/", "source_type": "leverancier", "pdf": false, "part": "Octopus Outgoing", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Octopus describes Outgoing as variable.", "quote": "Outgoing Octopus is a variable tariff.", "source_url": "https://octopus.energy/smart/outgoing/", "source_type": "leverancier", "pdf": false, "part": "Octopus Outgoing", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Agile Outgoing follows uncapped wholesale export prices.", "quote": "half-hourly prices with day-ahead wholesale rates that are uncapped", "source_url": "https://octopus.energy/smart/outgoing/", "source_type": "leverancier", "pdf": false, "part": "Agile Outgoing", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Outgoing requires an Octopus Energy customer.", "quote": "Be an Octopus Energy customer", "source_url": "https://octopus.energy/smart/outgoing/", "source_type": "leverancier", "pdf": false, "part": "Octopus eligibility", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Octopus Flux is designed for solar and battery owners.", "quote": "designed exclusively for solar and battery owners.", "source_url": "https://octopus.energy/smart/flux/", "source_type": "leverancier", "pdf": false, "part": "Flux export", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Flux identifies its peak export period as 16:00 - 19:00.", "quote": "A peak rate between 16:00 - 19:00", "source_url": "https://octopus.energy/smart/flux/", "source_type": "leverancier", "pdf": false, "part": "Flux export", "read_on": "2026-10-19", "check": "ok" }, { "statement": "British Gas Export SEG pays 3p per kWh.", "quote": "3p per kWh", "source_url": "https://www.britishgas.co.uk/energy/smart-export-guarantee-tariff.html", "source_type": "leverancier", "pdf": false, "part": "British Gas Export SEG", "read_on": "2026-10-19", "check": "ok" }, { "statement": "British Gas displays an ambiguous rate for Export Premium.", "quote": "£12p per kWh", "source_url": "https://www.britishgas.co.uk/energy/smart-export-guarantee-tariff.html", "source_type": "leverancier", "pdf": false, "part": "British Gas Export Premium", "read_on": "2026-10-19", "check": "ok" }, { "statement": "British Gas displays an ambiguous rate for Export Extra.", "quote": "£8p per kWh", "source_url": "https://www.britishgas.co.uk/energy/smart-export-guarantee-tariff.html", "source_type": "leverancier", "pdf": false, "part": "British Gas Export Extra", "read_on": "2026-10-19", "check": "ok" }, { "statement": "British Gas reserves its premium tariffs for electricity customers.", "quote": "Exclusive to British Gas electricity customers", "source_url": "https://www.britishgas.co.uk/energy/smart-export-guarantee-tariff.html", "source_type": "leverancier", "pdf": false, "part": "British Gas eligibility", "read_on": "2026-10-19", "check": "ok" }, { "statement": "EDF displays 18p per kWh for its exclusive export tariff.", "quote": "18p per kWh", "source_url": "https://www.edfenergy.com/energy-efficiency/smart-export-tariff", "source_type": "leverancier", "pdf": false, "part": "EDF Export Exclusive 12m V3", "read_on": "2026-10-19", "check": "ok" }, { "statement": "EDF displays 13p per kWh for this export tariff.", "quote": "13p per kWh", "source_url": "https://www.edfenergy.com/energy-efficiency/smart-export-tariff", "source_type": "leverancier", "pdf": false, "part": "EDF Export 12m V2", "read_on": "2026-10-19", "check": "ok" }, { "statement": "EDF SEG Export Variable Value displays 5.6p per kWh.", "quote": "5.6p per kWh", "source_url": "https://www.edfenergy.com/energy-efficiency/smart-export-tariff", "source_type": "leverancier", "pdf": false, "part": "EDF SEG Export Variable Value", "read_on": "2026-10-19", "check": "ok" }, { "statement": "EDF SEG Export Variable displays 3.0p per kWh.", "quote": "3.0p per kWh", "source_url": "https://www.edfenergy.com/energy-efficiency/smart-export-tariff", "source_type": "leverancier", "pdf": false, "part": "EDF SEG Export Variable", "read_on": "2026-10-19", "check": "ok" }, { "statement": "EDF identifies this export tariff as fixed.", "quote": "1-year fixed tariff", "source_url": "https://www.edfenergy.com/energy-efficiency/smart-export-tariff", "source_type": "leverancier", "pdf": false, "part": "EDF Export 12m V2", "read_on": "2026-10-19", "check": "ok" }, { "statement": "E.ON Next excludes time of use import tariffs from Export Exclusive eligibility.", "quote": "excluding time of use", "source_url": "https://www.eonnext.com/electricity-and-gas/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "part": "E.ON Next Export Exclusive v3", "read_on": "2026-10-19", "check": "ok" }, { "statement": "OVO SEG displays 4p per kWh.", "quote": "4p per kWh", "source_url": "https://www.ovoenergy.com/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "part": "OVO SEG", "read_on": "2026-10-19", "check": "ok" }, { "statement": "OVO SEG Beyond Exclusive displays 12p per kWh.", "quote": "12p per kWh", "source_url": "https://www.ovoenergy.com/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "part": "OVO SEG Beyond Exclusive", "read_on": "2026-10-19", "check": "ok" }, { "statement": "OVO SEG Install Exclusive pays up to 20p per kWh.", "quote": "up to 20p per kWh", "source_url": "https://www.ovoenergy.com/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "part": "OVO SEG Install Exclusive", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Standard OVO SEG accepts any import supplier.", "quote": "electricity supply is with any provider", "source_url": "https://www.ovoenergy.com/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "part": "OVO SEG", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Beyond Exclusive requires OVO electricity supply.", "quote": "electricity supply is with OVO", "source_url": "https://www.ovoenergy.com/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "part": "OVO SEG Beyond Exclusive", "read_on": "2026-10-19", "check": "ok" }, { "statement": "So Export Flex pays 4.5p/kwh including VAT.", "quote": "So Export Flex is 4.5p/kwh (incl. VAT)", "source_url": "https://www.so.energy/solar/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "part": "So Export Flex", "read_on": "2026-10-19", "check": "ok" }, { "statement": "So Energy import supply is not required.", "quote": "You don't need to buy electricity from So Energy to benefit from SEG", "source_url": "https://www.so.energy/solar/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "part": "So Energy eligibility", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Good Energy Solar Savings is variable and pays 12p/kWh.", "quote": "Variable rate export tariff currently paying 12p/kWh", "source_url": "https://www.goodenergy.co.uk/products/export-tariffs/", "source_type": "leverancier", "pdf": false, "part": "Good Energy Solar Savings", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Solar Savings Exclusive is fixed and pays 25p/kWh.", "quote": "Fixed rate, fixed term export tariff paying 25p/kWh", "source_url": "https://www.goodenergy.co.uk/products/export-tariffs/", "source_type": "leverancier", "pdf": false, "part": "Good Energy Solar Savings Exclusive", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Solar Savings is available to Good Energy supply customers.", "quote": "Solar Savings is available to Good Energy supply customers.", "source_url": "https://www.goodenergy.co.uk/products/export-tariffs/", "source_type": "leverancier", "pdf": false, "part": "Good Energy eligibility", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Premium and Exclusive fix SEG rates for 12 months.", "quote": "Fixed SEG rates for 12 months.", "source_url": "https://www.eonnext.com/electricity-and-gas/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "E.ON Next Premium and Exclusive", "check": "ok" }, { "statement": "Premium requires installation by E.ON Installation Services from 10/11/2025.", "quote": "A solar or/and battery installation by E.ON Installation Services from 10/11/2025.", "source_url": "https://www.eonnext.com/electricity-and-gas/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "E.ON Next Premium", "check": "ok" }, { "statement": "These tariffs require a smart export meter.", "quote": "Requires a smart export meter", "source_url": "https://www.eonnext.com/electricity-and-gas/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "E.ON Next meter eligibility", "check": "ok" }, { "statement": "Flex Export has variable SEG rates.", "quote": "Variable SEG rates.", "source_url": "https://www.eonnext.com/electricity-and-gas/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "E.ON Next Flex Export", "check": "ok" }, { "statement": "EDF requires an export smart meter capable of half-hourly readings.", "quote": "An export smart meter installed capable of recording readings at half-hourly intervals.", "source_url": "https://www.edfenergy.com/energy-efficiency/smart-export-tariff", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "EDF export meter", "check": "ok" }, { "statement": "Export Exclusive requires a new Contact Solar solar-panel or battery installation.", "quote": "new installation by Contact Solar of solar photovoltaic (PV) panels or a battery", "source_url": "https://www.edfenergy.com/eligibilityandfeatures?tab=battery-solar-heat-pump-tariffs", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "EDF Export Exclusive v3", "check": "ok" }, { "statement": "Export Exclusive requires EDF electricity supply.", "quote": "supplied by EDF for their electricity at their home.", "source_url": "https://www.edfenergy.com/eligibilityandfeatures?tab=battery-solar-heat-pump-tariffs", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "EDF Export Exclusive v3", "check": "ok" }, { "statement": "Exclusive has a fixed 12-month term.", "quote": "Fixed 12-month term", "source_url": "https://www.goodenergy.co.uk/products/export-tariffs/", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "Good Energy Solar Savings Exclusive", "check": "ok" }, { "statement": "Exclusive requires solar panels and a battery installed by Good Energy Solar.", "quote": "solar panels and battery installed by Good Energy Solar.", "source_url": "https://www.goodenergy.co.uk/products/export-tariffs/", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "Good Energy Solar Savings Exclusive", "check": "ok" }, { "statement": "Both tariffs require a smart meter sending half hourly readings.", "quote": "smart meter that sends half hourly readings.", "source_url": "https://www.goodenergy.co.uk/products/export-tariffs/", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "Good Energy export eligibility", "check": "ok" }, { "statement": "The premium tariffs are variable.", "quote": "Variable tariff", "source_url": "https://www.britishgas.co.uk/energy/smart-export-guarantee-tariff.html", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "British Gas Export Premium and Extra", "check": "ok" }, { "statement": "Export Premium applies to systems up to 15kW.", "quote": "For systems up to 15kW", "source_url": "https://www.britishgas.co.uk/energy/smart-export-guarantee-tariff.html", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "British Gas Export Premium", "check": "ok" }, { "statement": "Export Extra applies to systems over 15kW.", "quote": "For systems over 15kW", "source_url": "https://www.britishgas.co.uk/energy/smart-export-guarantee-tariff.html", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "British Gas Export Extra", "check": "ok" }, { "statement": "British Gas requires a smart meter sending readings every half an hour.", "quote": "smart meter that sends readings every half an hour.", "source_url": "https://www.britishgas.co.uk/energy/smart-export-guarantee-tariff.html", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "British Gas SEG meter", "check": "ok" }, { "statement": "So Energy directs applicants without a smart meter to upgrade it before moving to the export tariff.", "quote": "please contact them to upgrade your meter, after which we can move you onto our export tariff.", "source_url": "https://www.so.energy/solar/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "So Energy smart meter", "check": "ok" }, { "statement": "The premium export tariff pays 17.5p per kWh.", "quote": "You'll receive 17.5p per kWh", "source_url": "https://www.eonnext.com/electricity-and-gas/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-22", "part": "Next Export Premium v3", "check": "ok" }, { "statement": "The flexible export tariff pays 6p per kWh.", "quote": "You'll receive 6p per kWh", "source_url": "https://www.eonnext.com/electricity-and-gas/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-22", "part": "Next Flex Export v1", "check": "ok" }, { "statement": "The install-exclusive tariff requires OVO to install solar panels and a home battery.", "quote": "We install your solar panels and home storage battery", "source_url": "https://www.ovoenergy.com/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-22", "part": "OVO SEG Install Exclusive", "check": "ok" }, { "statement": "So Energy requires half-hourly export measurement.", "quote": "be capable of measuring export at half-hourly intervals", "source_url": "https://justsoyouknow.so.energy/posts/2110502-smart-export-tariff-seg-terms-and-conditions", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-22", "part": "So Energy general SEG terms", "check": "ok" }, { "statement": "So Energy places product-specific rates, term and eligibility in its commencement letter.", "quote": "Smart Export Commencement Letter which details the rates, term, and eligibility of your SEG Tariff.", "source_url": "https://justsoyouknow.so.energy/posts/2110502-smart-export-tariff-seg-terms-and-conditions", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-22", "part": "So Energy general SEG terms", "check": "ok" }, { "statement": "OVO requires a smart meter to track exported energy.", "quote": "A smart meter to track your exported energy", "source_url": "https://www.ovoenergy.com/smart-export-guarantee", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "Octopus describes Agile Outgoing as a fixed-term tariff with a locked rate formula.", "quote": "Agile Outgoing is a 12 month fixed-term tariff with a locked-in rate formula.", "source_url": "https://octopus.energy/smart/outgoing/", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "British Gas Export SEG pays 3p per kWh exported.", "quote": "If you’re not a British Gas electricity customer, you’re a developer, or you’re a VoidCare customer who has a system over 15kW, you’ll join our Export SEG tariff – and we’ll pay you 3p per kWh.", "source_url": "https://www.britishgas.co.uk/energy/smart-export-guarantee-tariff.html", "source_type": "leverancier", "read_on": "2026-10-22", "part": "British Gas Export SEG", "seg": { "leverancier": "British Gas", "tarief": "Export SEG", "p": 3, "type": "", "to": false, "voorwaarde": "For anyone who is not a British Gas electricity customer" }, "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "British Gas Export Premium pays 12p per kWh exported.", "quote": "Export Premium £12p per kWh (For systems up to 15kW )", "source_url": "https://www.britishgas.co.uk/energy/smart-export-guarantee-tariff.html", "source_type": "leverancier", "read_on": "2026-10-22", "part": "British Gas Export Premium", "seg": { "leverancier": "British Gas", "tarief": "Export Premium", "p": 12, "type": "variable", "to": false, "voorwaarde": "British Gas electricity customers, systems up to 15kW", "onduidelijk": true }, "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "EDF Export Exclusive 12m V3 pays 18p per kWh exported.", "quote": "Get paid 18p per kWh for the energy you export Switch or leave anytime - this tariff has no exit fees View Export Exclusive 12m V3's eligibility criteria", "source_url": "https://www.edfenergy.com/energy-efficiency/smart-export-tariff", "source_type": "leverancier", "read_on": "2026-10-22", "part": "EDF Export Exclusive 12m V3", "seg": { "leverancier": "EDF", "tarief": "Export Exclusive 12m V3", "p": 18, "type": "12 months", "to": false, "voorwaarde": "New solar and/or battery installation by EDF (Contact Solar), EDF electricity supply" }, "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "EDF Export 12m V2 pays 13p per kWh exported.", "quote": "Available to existing residential EDF electricity customers Export 12m V2 13p per kWh for the energy you export 1-year fixed tariff", "source_url": "https://www.edfenergy.com/energy-efficiency/smart-export-tariff", "source_type": "leverancier", "read_on": "2026-10-22", "part": "EDF Export 12m V2", "seg": { "leverancier": "EDF", "tarief": "Export 12m V2", "p": 13, "type": "1-year fixed", "to": false, "voorwaarde": "Existing residential EDF electricity customers" }, "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "EDF SEG Export Variable Value pays 5.6p per kWh exported.", "quote": "SEG Export Variable Value Exclusive to EDF electricity customers 5.6p per kWh", "source_url": "https://www.edfenergy.com/energy-efficiency/smart-export-tariff", "source_type": "leverancier", "read_on": "2026-10-22", "part": "EDF SEG Export Variable Value", "seg": { "leverancier": "EDF", "tarief": "SEG Export Variable Value", "p": 5.6, "type": "variable", "to": false, "voorwaarde": "EDF electricity customers" }, "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "EDF SEG Export Variable pays 3p per kWh exported.", "quote": "SEG Export Variable Available to anyone, whether you're an EDF customer or with another supplier 3.0p per kWh", "source_url": "https://www.edfenergy.com/energy-efficiency/smart-export-tariff", "source_type": "leverancier", "read_on": "2026-10-22", "part": "EDF SEG Export Variable", "seg": { "leverancier": "EDF", "tarief": "SEG Export Variable", "p": 3.0, "type": "variable", "to": false, "voorwaarde": "Anyone, with any supplier" }, "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "E.ON Next Next Export Premium v3 pays 17.5p per kWh exported.", "quote": "Next Export Premium v3. You'll receive 17.5p per kWh of electricity you export on a 12-month fixed-term SEG tariff.", "source_url": "https://www.eonnext.com/electricity-and-gas/smart-export-guarantee", "source_type": "leverancier", "read_on": "2026-10-22", "part": "E.ON Next Next Export Premium v3", "seg": { "leverancier": "E.ON Next", "tarief": "Next Export Premium v3", "p": 17.5, "type": "12-month fixed", "to": false, "voorwaarde": "Solar and/or battery installed by E.ON Installation Services from 10/11/2025, up to 15kW" }, "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "E.ON Next Next Export Exclusive v3 pays 13p per kWh exported.", "quote": "Next Export Exclusive v3. We'll reward you with 13p per kWh of electricity you export on a 12-month fixed-term SEG tariff.", "source_url": "https://www.eonnext.com/electricity-and-gas/smart-export-guarantee", "source_type": "leverancier", "read_on": "2026-10-22", "part": "E.ON Next Next Export Exclusive v3", "seg": { "leverancier": "E.ON Next", "tarief": "Next Export Exclusive v3", "p": 13, "type": "12-month fixed", "to": false, "voorwaarde": "E.ON Next import tariff, but not a time-of-use tariff such as Next Drive; up to 15kW" }, "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "E.ON Next Next Flex Export v1 pays 6p per kWh exported.", "quote": "Next Flex Export v1. You'll receive 6p per kWh of electricity and this is a variable rate SEG tariff", "source_url": "https://www.eonnext.com/electricity-and-gas/smart-export-guarantee", "source_type": "leverancier", "read_on": "2026-10-22", "part": "E.ON Next Next Flex Export v1", "seg": { "leverancier": "E.ON Next", "tarief": "Next Flex Export v1", "p": 6, "type": "variable", "to": false, "voorwaarde": "New and existing customers, systems up to 5MW" }, "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "OVO SEG pays 4p per kWh exported.", "quote": "SEG We'll pay you 4p per kWh Choose SEG You can generate your own renewable energy at home Your installed capacity doesn't exceed 5MW or 50kW for Micro-CHP Your electricity supply is with any provider", "source_url": "https://www.ovoenergy.com/smart-export-guarantee", "source_type": "leverancier", "read_on": "2026-10-22", "part": "OVO SEG", "seg": { "leverancier": "OVO", "tarief": "SEG", "p": 4, "type": "", "to": false, "voorwaarde": "Electricity supply with any provider" }, "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "OVO SEG Beyond Exclusive pays 12p per kWh exported.", "quote": "SEG Beyond Exclusive We'll pay you 12p per kWh Choose SEG Beyond You can generate your own renewable energy at home Your installed capacity is under 30kW Your electricity supply is with OVO", "source_url": "https://www.ovoenergy.com/smart-export-guarantee", "source_type": "leverancier", "read_on": "2026-10-22", "part": "OVO SEG Beyond Exclusive", "seg": { "leverancier": "OVO", "tarief": "SEG Beyond Exclusive", "p": 12, "type": "", "to": false, "voorwaarde": "OVO electricity supply, system under 30kW" }, "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "OVO SEG Install Exclusive pays up to 20p per kWh exported.", "quote": "SEG Install Exclusive We'll pay you up to 20p per kWh", "source_url": "https://www.ovoenergy.com/smart-export-guarantee", "source_type": "leverancier", "read_on": "2026-10-22", "part": "OVO SEG Install Exclusive", "seg": { "leverancier": "OVO", "tarief": "SEG Install Exclusive", "p": 20, "type": "", "to": true, "voorwaarde": "OVO installs your solar panels and battery (15p if solar panels only)" }, "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "ScottishPower SmartGen pays 6p per kWh exported.", "quote": "SmartGen Price Per kWh = 6p", "source_url": "https://www.scottishpower.co.uk/smart-export-guarantee", "source_type": "leverancier", "read_on": "2026-10-22", "part": "ScottishPower SmartGen", "seg": { "leverancier": "ScottishPower", "tarief": "SmartGen", "p": 6, "type": "variable", "to": false, "voorwaarde": "Anyone who meets the SEG eligibility criteria" }, "check": "ok", "getoetst_via": "browser (Claude)" }, { "statement": "ScottishPower SmartGen Premium pays 12p per kWh exported.", "quote": "SmartGen Premium Price Per kWh = 12p", "source_url": "https://www.scottishpower.co.uk/smart-export-guarantee", "source_type": "leverancier", "read_on": "2026-10-22", "part": "ScottishPower SmartGen Premium", "seg": { "leverancier": "ScottishPower", "tarief": "SmartGen Premium", "p": 12, "type": "variable", "to": false, "voorwaarde": "ScottishPower electricity customers at the same address" }, "check": "ok", "getoetst_via": "browser (Claude)" }, { "statement": "ScottishPower SmartGen Premium Plus pays 15p per kWh exported.", "quote": "SmartGen Premium Plus Price Per kWh = 15p", "source_url": "https://www.scottishpower.co.uk/smart-export-guarantee", "source_type": "leverancier", "read_on": "2026-10-22", "part": "ScottishPower SmartGen Premium Plus", "seg": { "leverancier": "ScottishPower", "tarief": "SmartGen Premium Plus", "p": 15, "type": "variable", "to": false, "voorwaarde": "ScottishPower electricity customers who had their solar and/or battery installed by ScottishPower" }, "check": "ok", "getoetst_via": "browser (Claude)" }, { "statement": "Octopus Energy Prime Outgoing (4pm–7pm) pays 16p per kWh exported.", "quote": "Export at prime time (4pm-7pm) for an awesome 16p per kWh and earn a steady 9p per kWh the rest of the day.", "source_url": "https://octopus.energy/smart/outgoing/", "source_type": "leverancier", "read_on": "2026-10-22", "part": "Octopus Energy Prime Outgoing (4pm–7pm)", "seg": { "leverancier": "Octopus Energy", "tarief": "Prime Outgoing (4pm–7pm)", "p": 16, "type": "12-month fixed", "to": false, "voorwaarde": "Octopus Energy customers. The 16p applies 4pm–7pm only.", "tijd": true, "p_daarbuiten": 9 }, "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Solar Savings Exclusive is only for customers whose solar panels and battery were installed by Good Energy Solar.", "quote": "Exclusively available to customers who had their solar panels and battery installed by Good Energy Solar.", "source_url": "https://www.goodenergy.co.uk/products/export-tariffs/", "source_type": "leverancier", "read_on": "2026-10-26", "part": "Good Energy Solar Savings Exclusive", "check": "ok", "getoetst_via": "curl + tekstvergelijking (Claude, 26 okt); Codex kwaliteit 24 okt" } ], "partly_being_verified": true }, { "id": "feit:smart-tariffs", "topic": "Smart import tariffs", "facts": [ { "statement": "Octopus Go has a cheap overnight window of 00:30 - 05:30 and works with all EVs and chargers.", "quote": "super cheap electricity between 00:30 - 05:30 every night", "source_url": "https://octopus.energy/smart/go/", "source_type": "leverancier", "pdf": false, "part": "Octopus Go", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Octopus Go supports all EVs and chargers.", "quote": "Compatible with all EVs and chargers.", "source_url": "https://octopus.energy/smart/go/", "source_type": "leverancier", "pdf": false, "part": "Octopus Go", "read_on": "2026-10-19", "check": "ok" }, { "statement": "The whole-home off-peak window is between 11:30pm and 5:30am.", "quote": "between 11:30pm and 5:30am.", "source_url": "https://octopus.energy/smart/intelligent-octopus-go/", "source_type": "leverancier", "pdf": false, "part": "Intelligent Octopus Go", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Octopus Flux identifies a cheap window of 02:00 - 05:00.", "quote": "Super cheap rates between 02:00 - 05:00", "source_url": "https://octopus.energy/smart/flux/", "source_type": "leverancier", "pdf": false, "part": "Octopus Flux", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Agile Octopus has wholesale-linked prices updated daily.", "quote": "half-hourly energy prices, tied to wholesale prices and updated daily.", "source_url": "https://octopus.energy/smart/agile/", "source_type": "leverancier", "pdf": false, "part": "Agile Octopus", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Agile prices can rise to 100 p/kWh.", "quote": "Agile prices can spike up to 100 p/kWh any time", "source_url": "https://octopus.energy/smart/agile/", "source_type": "leverancier", "pdf": false, "part": "Agile Octopus", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Cosy cheap windows are 04:00 - 07:00, 13:00 - 16:00 and 22:00 - 00:00 every day.", "quote": "04:00 - 07:00, 13:00 - 16:00 and 22:00 - 00:00 every day", "source_url": "https://octopus.energy/smart/cosy-octopus/", "source_type": "leverancier", "pdf": false, "part": "Cosy Octopus", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Cosy eligibility includes a heat pump, electric radiator or electric boiler.", "quote": "a heat pump, electric radiator or electric boiler", "source_url": "https://octopus.energy/smart/cosy-octopus/", "source_type": "leverancier", "pdf": false, "part": "Cosy Octopus", "read_on": "2026-10-19", "check": "ok" }, { "statement": "EDF says GoElectric is exclusively for EV drivers.", "quote": "Designed exclusively for EV drivers", "source_url": "https://www.edfenergy.com/electric-cars/ev-tariffs/goelectric", "source_type": "leverancier", "pdf": false, "part": "EDF GoElectric", "read_on": "2026-10-19", "check": "ok" }, { "statement": "OVO Charge Anytime pay as you go discounts EV smart charging to 13.33p per kWh.", "quote": "Your home electricity rate discounted to 13.33p per kWh for smart charging", "source_url": "https://www.ovoenergy.com/electric-cars/charge-anytime", "source_type": "leverancier", "pdf": false, "part": "OVO Charge Anytime", "read_on": "2026-10-19", "check": "ok" }, { "statement": "OVO smart charging is available day or night.", "quote": "Smart charge anytime, day or night", "source_url": "https://www.ovoenergy.com/electric-cars/charge-anytime", "source_type": "leverancier", "pdf": false, "part": "OVO Charge Anytime", "read_on": "2026-10-19", "check": "ok" }, { "statement": "British Gas EV Power offers 9.5p per kWh from midnight-5am.", "quote": "Just 9.5p per kWh from midnight-5am", "source_url": "https://www.britishgas.co.uk/energy/ev-tariff.html", "source_type": "leverancier", "pdf": false, "part": "British Gas EV Power", "read_on": "2026-10-19", "check": "ok" }, { "statement": "British Gas requires an EV charged at home.", "quote": "An electric vehicle you charge at home.", "source_url": "https://www.britishgas.co.uk/energy/ev-tariff.html", "source_type": "leverancier", "pdf": false, "part": "British Gas EV Power", "read_on": "2026-10-19", "check": "ok" }, { "statement": "Go requires an electric car charged at home.", "quote": "Have an electric car that you charge at home", "source_url": "https://octopus.energy/smart/go/", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "Octopus Go", "check": "ok" }, { "statement": "Go requires a smart meter Octopus can connect to.", "quote": "Have a smart meter we can connect to", "source_url": "https://octopus.energy/smart/go/", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "Octopus Go", "check": "ok" }, { "statement": "Go requires Octopus supply.", "quote": "Be an Octopus Energy customer", "source_url": "https://octopus.energy/smart/go/", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "Octopus Go", "check": "ok" }, { "statement": "Intelligent Go connects the EV or charger through the Octopus app.", "quote": "Connect your EV or charger in the Octopus app", "source_url": "https://octopus.energy/smart/intelligent-octopus-go/", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "Intelligent Octopus Go", "check": "ok" }, { "statement": "Intelligent Go requires a compatible EV.", "quote": "Plug in your compatible EV", "source_url": "https://octopus.energy/smart/intelligent-octopus-go/", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "Intelligent Octopus Go", "check": "ok" }, { "statement": "Cosy requires a connectable smart meter.", "quote": "Have a smart meter we can connect to", "source_url": "https://octopus.energy/smart/cosy-octopus/", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "Cosy Octopus", "check": "ok" }, { "statement": "Cosy offers flexible and fixed versions.", "quote": "We offer both flexible and fixed versions of Cosy.", "source_url": "https://octopus.energy/smart/cosy-octopus/", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "Cosy Octopus", "check": "ok" }, { "statement": "GoElectric requires an active EDF electricity account and a connected smart meter.", "quote": "an active EDF electricity account with a fully connected smart meter", "source_url": "https://www.edfenergy.com/electric-cars/ev-tariffs/goelectric", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "EDF GoElectric", "check": "ok" }, { "statement": "Charge Anytime requires a compatible EV or charger, a smart meter and an OVO account.", "quote": "compatible EV or charger, a smart meter, and an OVO account.", "source_url": "https://www.ovoenergy.com/electric-cars/charge-anytime", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "OVO Charge Anytime", "check": "ok" }, { "statement": "EV Power requires a smart electricity meter.", "quote": "A smart electricity meter.", "source_url": "https://www.britishgas.co.uk/energy/ev-tariff.html", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "British Gas EV Power", "check": "ok" }, { "statement": "EV Power requires Direct Debit.", "quote": "To pay by Direct Debit", "source_url": "https://www.britishgas.co.uk/energy/ev-tariff.html", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "British Gas EV Power", "check": "ok" }, { "statement": "Drive Smart requires a smart meter and half hourly consent.", "quote": "Smart meter with half hourly consent required.", "source_url": "https://www.eonnext.com/tariffs/next-drive/smart/support", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "E.ON Next Drive Smart", "check": "ok" }, { "statement": "Drive Smart requires an eligible electric vehicle and charger.", "quote": "You must have an eligible electric vehicle and charger.", "source_url": "https://www.eonnext.com/tariffs/next-drive/smart/support", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-20", "part": "E.ON Next Drive Smart", "check": "ok" }, { "statement": "EDF advertises an off-peak rate of 6.66p/kWh from 11 pm to 6 am every night.", "quote": "6.66p/kWh from 11 pm to 6 am every night", "source_url": "https://www.edfenergy.com/electric-cars/ev-tariffs/goelectric", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-22", "part": "EDF GoElectric", "check": "ok" }, { "statement": "Octopus terms describe both variable and fixed Go versions.", "quote": "Octopus Go is available as both a Variable Rate Tariff and a Fixed Rate Tariff", "source_url": "https://octopus.energy/policies/smart-tariffs-terms-and-condition/", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "Cosy terms specify the peak period.", "quote": "a “peak period” rate per kWh (from 16:00 - 19:00)", "source_url": "https://octopus.energy/policies/smart-tariffs-terms-and-condition/", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "Flux terms classify the tariff as variable.", "quote": "Octopus Flux is a Variable Rate Tariff", "source_url": "https://octopus.energy/policies/smart-tariffs-terms-and-condition/", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "OVO keeps other home consumption on the standard energy tariff.", "quote": "all home energy use will be charged at your standard OVO energy tariff rates for electricity and gas;", "source_url": "https://www.ovoenergy.com/terms/charge-anytime-terms", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "OVO does not credit the normal standing charges through Charge Anytime.", "quote": "standing charges (or \"fixed charges\") associated with your tariff will remain the same and no credit will apply;", "source_url": "https://www.ovoenergy.com/terms/charge-anytime-terms", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "OVO publishes the current pay-as-you-go EV rate with its effective date and VAT treatment.", "quote": "Charge Anytime pay as you go rate from 1 October 2026 incl. VAT charged at 0%: 13.33p per kWh", "source_url": "https://www.ovoenergy.com/terms/charge-anytime/add-on-plan-details", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "E.ON Next says its fixed EV tariff fixes peak and off-peak prices for a year.", "quote": "fixing your peak and off-peak rates for 1 year with zero exit fees.", "source_url": "https://www.eonnext.com/blog/next-drive-fixed-vs-next-drive-smart", "source_type": "leverancier", "pdf": false, "read_on": "2026-10-22", "check": "ok" }, { "statement": "Octopus Go 12M Fixed, London (region C), rate on 23 October 2026 incl. VAT: 9.4p per kWh.", "quote": "\"value_exc_vat\":9.4,\"value_inc_vat\":9.4,\"valid_from\":\"2026-10-22T23:30:00Z\",\"valid_to\":\"2026-10-23T04:30:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/GO-FIX-12M-26-10-14/electricity-tariffs/E-1R-GO-FIX-12M-26-10-14-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Octopus Go 12M Fixed", "slim": { "tarief": "Octopus Go 12M Fixed", "product": "GO-FIX-12M-26-10-14", "source_type": "import", "p": 9.4, "vensters": [ "00:30–05:30" ], "vastrecht_p_dag": 41.2195, "term_maanden": 12, "variabel": false }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Octopus Go 12M Fixed, London (region C), rate on 23 October 2026 incl. VAT: 37.2872p per kWh.", "quote": "\"value_exc_vat\":37.2872,\"value_inc_vat\":37.2872,\"valid_from\":\"2026-10-23T04:30:00Z\",\"valid_to\":\"2026-10-23T23:30:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/GO-FIX-12M-26-10-14/electricity-tariffs/E-1R-GO-FIX-12M-26-10-14-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Octopus Go 12M Fixed", "slim": { "tarief": "Octopus Go 12M Fixed", "product": "GO-FIX-12M-26-10-14", "source_type": "import", "p": 37.2872, "vensters": [ "05:30–00:30" ], "vastrecht_p_dag": 41.2195, "term_maanden": 12, "variabel": false }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Octopus Go (variable), London (region C), rate on 23 October 2026 incl. VAT: 9.4p per kWh.", "quote": "\"value_exc_vat\":9.4,\"value_inc_vat\":9.4,\"valid_from\":\"2026-10-22T23:30:00Z\",\"valid_to\":\"2026-10-23T04:30:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/GO-VAR-22-10-14/electricity-tariffs/E-1R-GO-VAR-22-10-14-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Octopus Go (variable)", "slim": { "tarief": "Octopus Go (variable)", "product": "GO-VAR-22-10-14", "source_type": "import", "p": 9.4, "vensters": [ "00:30–05:30" ], "vastrecht_p_dag": 42.2934, "term_maanden": null, "variabel": true }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Octopus Go (variable), London (region C), rate on 23 October 2026 incl. VAT: 34.5297p per kWh.", "quote": "\"value_exc_vat\":34.5297,\"value_inc_vat\":34.5297,\"valid_from\":\"2026-10-23T04:30:00Z\",\"valid_to\":\"2026-10-23T23:30:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/GO-VAR-22-10-14/electricity-tariffs/E-1R-GO-VAR-22-10-14-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Octopus Go (variable)", "slim": { "tarief": "Octopus Go (variable)", "product": "GO-VAR-22-10-14", "source_type": "import", "p": 34.5297, "vensters": [ "05:30–00:30" ], "vastrecht_p_dag": 42.2934, "term_maanden": null, "variabel": true }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Cosy Octopus 12M Fixed, London (region C), rate on 23 October 2026 incl. VAT: 16.8903p per kWh.", "quote": "\"value_exc_vat\":16.8903,\"value_inc_vat\":16.8903,\"valid_from\":\"2026-10-23T21:00:00Z\",\"valid_to\":\"2026-10-23T23:00:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/COSY-FIX-12M-26-10-14/electricity-tariffs/E-1R-COSY-FIX-12M-26-10-14-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Cosy Octopus 12M Fixed", "slim": { "tarief": "Cosy Octopus 12M Fixed", "product": "COSY-FIX-12M-26-10-14", "source_type": "import", "p": 16.8903, "vensters": [ "04:00–07:00", "13:00–16:00", "22:00–00:00" ], "vastrecht_p_dag": 41.2195, "term_maanden": 12, "variabel": false }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Cosy Octopus 12M Fixed, London (region C), rate on 23 October 2026 incl. VAT: 34.4281p per kWh.", "quote": "\"value_exc_vat\":34.4281,\"value_inc_vat\":34.4281,\"valid_from\":\"2026-10-23T18:00:00Z\",\"valid_to\":\"2026-10-23T21:00:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/COSY-FIX-12M-26-10-14/electricity-tariffs/E-1R-COSY-FIX-12M-26-10-14-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Cosy Octopus 12M Fixed", "slim": { "tarief": "Cosy Octopus 12M Fixed", "product": "COSY-FIX-12M-26-10-14", "source_type": "import", "p": 34.4281, "vensters": [ "00:00–04:00", "07:00–13:00", "19:00–22:00" ], "vastrecht_p_dag": 41.2195, "term_maanden": 12, "variabel": false }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Cosy Octopus 12M Fixed, London (region C), rate on 23 October 2026 incl. VAT: 51.6422p per kWh.", "quote": "\"value_exc_vat\":51.6422,\"value_inc_vat\":51.6422,\"valid_from\":\"2026-10-23T15:00:00Z\",\"valid_to\":\"2026-10-23T18:00:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/COSY-FIX-12M-26-10-14/electricity-tariffs/E-1R-COSY-FIX-12M-26-10-14-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Cosy Octopus 12M Fixed", "slim": { "tarief": "Cosy Octopus 12M Fixed", "product": "COSY-FIX-12M-26-10-14", "source_type": "import", "p": 51.6422, "vensters": [ "16:00–19:00" ], "vastrecht_p_dag": 41.2195, "term_maanden": 12, "variabel": false }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Cosy Octopus (variable), London (region C), rate on 23 October 2026 incl. VAT: 14.1216p per kWh.", "quote": "\"value_exc_vat\":14.1216,\"value_inc_vat\":14.1216,\"valid_from\":\"2026-10-23T21:00:00Z\",\"valid_to\":\"2026-10-23T23:00:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/COSY-22-12-08/electricity-tariffs/E-1R-COSY-22-12-08-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Cosy Octopus (variable)", "slim": { "tarief": "Cosy Octopus (variable)", "product": "COSY-22-12-08", "source_type": "import", "p": 14.1216, "vensters": [ "04:00–07:00", "13:00–16:00", "22:00–00:00" ], "vastrecht_p_dag": 42.2934, "term_maanden": null, "variabel": true }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Cosy Octopus (variable), London (region C), rate on 23 October 2026 incl. VAT: 28.796p per kWh.", "quote": "\"value_exc_vat\":28.796,\"value_inc_vat\":28.796,\"valid_from\":\"2026-10-23T18:00:00Z\",\"valid_to\":\"2026-10-23T21:00:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/COSY-22-12-08/electricity-tariffs/E-1R-COSY-22-12-08-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Cosy Octopus (variable)", "slim": { "tarief": "Cosy Octopus (variable)", "product": "COSY-22-12-08", "source_type": "import", "p": 28.796, "vensters": [ "00:00–04:00", "07:00–13:00", "19:00–22:00" ], "vastrecht_p_dag": 42.2934, "term_maanden": null, "variabel": true }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Cosy Octopus (variable), London (region C), rate on 23 October 2026 incl. VAT: 43.194p per kWh.", "quote": "\"value_exc_vat\":43.194,\"value_inc_vat\":43.194,\"valid_from\":\"2026-10-23T15:00:00Z\",\"valid_to\":\"2026-10-23T18:00:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/COSY-22-12-08/electricity-tariffs/E-1R-COSY-22-12-08-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Cosy Octopus (variable)", "slim": { "tarief": "Cosy Octopus (variable)", "product": "COSY-22-12-08", "source_type": "import", "p": 43.194, "vensters": [ "16:00–19:00" ], "vastrecht_p_dag": 42.2934, "term_maanden": null, "variabel": true }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Octopus Flux import, London (region C), rate on 23 October 2026 incl. VAT: 16.1662p per kWh.", "quote": "\"value_exc_vat\":16.1662,\"value_inc_vat\":16.1662,\"valid_from\":\"2026-10-23T01:00:00Z\",\"valid_to\":\"2026-10-23T04:00:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/FLUX-IMPORT-23-02-14/electricity-tariffs/E-1R-FLUX-IMPORT-23-02-14-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Octopus Flux import", "slim": { "tarief": "Octopus Flux import", "product": "FLUX-IMPORT-23-02-14", "source_type": "import", "p": 16.1662, "vensters": [ "02:00–05:00" ], "vastrecht_p_dag": 42.2934, "term_maanden": null, "variabel": true }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Octopus Flux import, London (region C), rate on 23 October 2026 incl. VAT: 26.7752p per kWh.", "quote": "\"value_exc_vat\":26.7752,\"value_inc_vat\":26.7752,\"valid_from\":\"2026-10-23T18:00:00Z\",\"valid_to\":\"2026-10-24T01:00:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/FLUX-IMPORT-23-02-14/electricity-tariffs/E-1R-FLUX-IMPORT-23-02-14-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Octopus Flux import", "slim": { "tarief": "Octopus Flux import", "product": "FLUX-IMPORT-23-02-14", "source_type": "import", "p": 26.7752, "vensters": [ "05:00–16:00", "19:00–02:00" ], "vastrecht_p_dag": 42.2934, "term_maanden": null, "variabel": true }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Octopus Flux import, London (region C), rate on 23 October 2026 incl. VAT: 37.3843p per kWh.", "quote": "\"value_exc_vat\":37.3843,\"value_inc_vat\":37.3843,\"valid_from\":\"2026-10-23T15:00:00Z\",\"valid_to\":\"2026-10-23T18:00:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/FLUX-IMPORT-23-02-14/electricity-tariffs/E-1R-FLUX-IMPORT-23-02-14-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Octopus Flux import", "slim": { "tarief": "Octopus Flux import", "product": "FLUX-IMPORT-23-02-14", "source_type": "import", "p": 37.3843, "vensters": [ "16:00–19:00" ], "vastrecht_p_dag": 42.2934, "term_maanden": null, "variabel": true }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Octopus Flux export, London (region C), rate on 23 October 2026 incl. VAT: 4.7185p per kWh.", "quote": "\"value_exc_vat\":4.7185,\"value_inc_vat\":4.7185,\"valid_from\":\"2026-10-23T01:00:00Z\",\"valid_to\":\"2026-10-23T04:00:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/FLUX-EXPORT-23-02-14/electricity-tariffs/E-1R-FLUX-EXPORT-23-02-14-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Octopus Flux export", "slim": { "tarief": "Octopus Flux export", "product": "FLUX-EXPORT-23-02-14", "source_type": "export", "p": 4.7185, "vensters": [ "02:00–05:00" ], "vastrecht_p_dag": 0.0, "term_maanden": null, "variabel": true }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Octopus Flux export, London (region C), rate on 23 October 2026 incl. VAT: 11.1143p per kWh.", "quote": "\"value_exc_vat\":11.1143,\"value_inc_vat\":11.1143,\"valid_from\":\"2026-10-23T18:00:00Z\",\"valid_to\":\"2026-10-24T01:00:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/FLUX-EXPORT-23-02-14/electricity-tariffs/E-1R-FLUX-EXPORT-23-02-14-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Octopus Flux export", "slim": { "tarief": "Octopus Flux export", "product": "FLUX-EXPORT-23-02-14", "source_type": "export", "p": 11.1143, "vensters": [ "05:00–16:00", "19:00–02:00" ], "vastrecht_p_dag": 0.0, "term_maanden": null, "variabel": true }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Octopus Flux export, London (region C), rate on 23 October 2026 incl. VAT: 30.3116p per kWh.", "quote": "\"value_exc_vat\":30.3116,\"value_inc_vat\":30.3116,\"valid_from\":\"2026-10-23T15:00:00Z\",\"valid_to\":\"2026-10-23T18:00:00Z\",\"payment_method\":null", "source_url": "https://api.octopus.energy/v1/products/FLUX-EXPORT-23-02-14/electricity-tariffs/E-1R-FLUX-EXPORT-23-02-14-C/standard-unit-rates/?period_from=2026-10-23T00:00:00Z&period_to=2026-10-24T00:00:00Z", "source_type": "leverancier (API)", "read_on": "2026-10-22", "part": "Octopus Flux export", "slim": { "tarief": "Octopus Flux export", "product": "FLUX-EXPORT-23-02-14", "source_type": "export", "p": 30.3116, "vensters": [ "16:00–19:00" ], "vastrecht_p_dag": 0.0, "term_maanden": null, "variabel": true }, "context": "Times converted from the API's UTC timestamps to UK time (BST on 23 October 2026).", "check": "ok", "getoetst_via": "toets_codex.py (Claude)" }, { "statement": "Intelligent Octopus Go advertises eligible-car smart charging from 8p/kWh.", "quote": "Smart charge eligible cars from only 8p/kWh", "source_url": "https://octopus.energy/smart/intelligent-octopus-go/", "part": "Intelligent Octopus Go", "read_on": "2026-10-26", "source_type": "leverancier", "check": "ok", "getoetst_via": "Supplier page read directly and source HTML text checked by Codex, 26 October 2026" }, { "statement": "E.ON Next Drive Smart advertises 6.5p per kWh between midnight and 6am, including the whole home during that window.", "quote": "Fixed window (Midnight - 6am): Charge your car overnight for just 6.5p per kWh.", "source_url": "https://www.eonnext.com/tariffs/next-drive/smart/support", "part": "E.ON Next Drive Smart", "context": "The following sentence states that the whole home enjoys the same lower rate; the separate peak-price example is explicitly illustrative and has no region.", "read_on": "2026-10-26", "source_type": "leverancier", "check": "ok", "getoetst_via": "Supplier page read directly and source HTML text checked by Codex, 26 October 2026" } ], "partly_being_verified": true } ] }