{ "status": "experimental prototype; not a published national index", "checkedDate": "2026-10-18", "series": { "food": { "2015": 100, "2016": 97.6, "2017": 99.8, "2018": 101.8, "2019": 103.2, "2020": 103.9, "2021": 104.2, "2022": 115.5, "2023": 132.3, "2024": 135.8, "2025": 141.5 }, "electricity": { "2015": 100, "2016": 99.8, "2017": 106.5, "2018": 115.7, "2019": 124.1, "2020": 124.3, "2021": 132.5, "2022": 197.5, "2023": 224.6, "2024": 190.5, "2025": 192.8 }, "gas": { "2015": 100, "2016": 94.09999999999998, "2017": 93.05833333333332, "2018": 96.55, "2019": 96.16666666666669, "2020": 86.54166666666667, "2021": 86.69999999999999, "2022": 164.725, "2023": 195, "2024": 146.2, "2025": 150.475 }, "rent": { "2015": 100.00008333333336, "2016": 102.42316666666666, "2017": 104.19166666666666, "2018": 105.23225, "2019": 106.55991666666664, "2020": 108.08166666666668, "2021": 109.51658333333334, "2022": 112.85925, "2023": 118.81816666666668, "2024": 127.95366666666666, "2025": 135.95558333333332 }, "cpi": { "2015": 100, "2016": 100.7, "2017": 103.4, "2018": 105.9, "2019": 107.8, "2020": 108.7, "2021": 111.6, "2022": 121.7, "2023": 130.5, "2024": 133.9, "2025": 138.4 }, "cpih": { "2015": 100, "2016": 101, "2017": 103.6, "2018": 106, "2019": 107.8, "2020": 108.9, "2021": 111.6, "2022": 120.5, "2023": 128.6, "2024": 132.9, "2025": 138 } }, "rates": { "2026-07-01": { "period": "Jul–Sep 2026", "revisionStatus": "final", "electricityUnit": 26.11, "electricityStanding": 57.19, "gasUnit": 7.33, "gasStanding": 29.04 }, "2026-10-01": { "period": "Oct–Dec 2026", "revisionStatus": "provisional", "electricityUnit": 26.32, "electricityStanding": 54.83, "gasUnit": 7.97, "gasStanding": 29.68 } }, "sources": [ { "file": "data/economy/cpi-index-food.json", "sha256": "0d1da4e851c18d9eb75b8a8830bd28dcdf606e0b8a2958a60e06f52694d4cafb", "definition": { "metricId": "cpi-index-food", "metricName": "CPI index: food and non-alcoholic drinks", "metricDescription": "Consumer prices index for food and non-alcoholic beverages (COICOP 01), 2015 = 100. Annual averages.", "unit": "index (2015=100)", "frequency": "annual", "geographyCode": "K02000001", "geographyName": "United Kingdom", "geographyType": "uk", "sourceOrganisation": "Office for National Statistics", "sourceDataset": "Consumer price inflation (MM23), series D7BU: “CPI INDEX 01 : FOOD AND NON-ALCOHOLIC BEVERAGES 2015=100”", "sourceSeries": "D7BU", "sourceUrl": "https://www.ons.gov.uk/economy/inflationandpriceindices/timeseries/d7bu/mm23", "retrievalMethod": "api", "evidenceClassification": "accredited_official_statistic", "nominalOrReal": "not_applicable", "priceBase": null, "seasonalAdjustment": "not_seasonally_adjusted", "methodologyNote": "A price index: it holds quality and quantity constant, so it is not the cost of what households actually bought.", "methodologyUrl": "https://www.ons.gov.uk/economy/inflationandpriceindices/methodologies/consumerpriceinflationincludesall3indicescpihcpiandrpiqmi", "knownBreaks": [], "derivedFrom": [], "calculation": null, "refreshCadence": "Monthly (annual average updated each January)" }, "releaseDate": "2026-09-16" }, { "file": "data/economy/cpi-index-electricity.json", "sha256": "11726f73d36da082cc007ded9ba726801b661793f3ed707cb0d6f79e74c7aa4c", "definition": { "metricId": "cpi-index-electricity", "metricName": "CPI index: electricity", "metricDescription": "Consumer prices index for domestic electricity (COICOP 04.5.1), 2015 = 100. Annual averages.", "unit": "index (2015=100)", "frequency": "annual", "geographyCode": "K02000001", "geographyName": "United Kingdom", "geographyType": "uk", "sourceOrganisation": "Office for National Statistics", "sourceDataset": "Consumer price inflation (MM23), series D7DT: “CPI INDEX 04.5.1 : ELECTRICITY 2015=100”", "sourceSeries": "D7DT", "sourceUrl": "https://www.ons.gov.uk/economy/inflationandpriceindices/timeseries/d7dt/mm23", "retrievalMethod": "api", "evidenceClassification": "accredited_official_statistic", "nominalOrReal": "not_applicable", "priceBase": null, "seasonalAdjustment": "not_seasonally_adjusted", "methodologyNote": "All domestic tariffs and payment methods. The Energy Price Guarantee (Oct 2022–Jun 2023) lowered prices charged and so this index; the £400 Energy Bills Support Scheme was a transfer and does not.", "methodologyUrl": "https://www.ons.gov.uk/economy/inflationandpriceindices/methodologies/consumerpriceinflationincludesall3indicescpihcpiandrpiqmi", "knownBreaks": [], "derivedFrom": [], "calculation": null, "refreshCadence": "Monthly (annual average updated each January)" }, "releaseDate": "2026-09-16" }, { "file": "data/economy/cpi-index-gas-monthly.json", "sha256": "51ec5e833e652d353dc9c301b2d2ae5f8257a826ef41f13935b16f4670aed8dc", "definition": { "metricId": "cpi-index-gas-monthly", "metricName": "CPI index — gas (04.5.2), monthly", "metricDescription": "CPI index for domestic mains gas, 2015=100, UK, monthly (ONS series D7DU): the prices households were charged, across tariffs and payment methods.", "unit": "index (2015=100)", "frequency": "monthly", "geographyCode": "K02000001", "geographyName": "United Kingdom", "geographyType": "uk", "sourceOrganisation": "Office for National Statistics", "sourceDataset": "Consumer price inflation (MM23), series D7DU", "sourceSeries": "D7DU", "sourceUrl": "https://www.ons.gov.uk/economy/inflationandpriceindices/timeseries/d7du/mm23", "retrievalMethod": "api", "evidenceClassification": "accredited_official_statistic", "nominalOrReal": "not_applicable", "priceBase": null, "seasonalAdjustment": "not_seasonally_adjusted", "methodologyNote": "Covers all domestic gas tariffs in the UK. Not the Ofgem cap, which is Great Britain default tariffs only. ONS classifies the £400 Energy Bills Support Scheme (October 2022 to March 2023) as a transfer to households, not a price reduction, so it does not lower this index. The Energy Price Guarantee (October 2022 to June 2023) was a subsidy that cut the prices households were charged, so it does.", "methodologyUrl": null, "knownBreaks": [], "derivedFrom": [], "calculation": null, "refreshCadence": "Monthly" }, "releaseDate": null }, { "file": "data/economy/cpi-private-rents-index.json", "sha256": "cb2af00411014a163bc41d0b828608a1a8f4e15e09b88a0df5c25a201fb05e57", "definition": { "metricId": "cpi-private-rents-index", "frequency": "monthly", "metricName": "Private rents (CPI component)", "metricDescription": "Index of rents paid to private landlords, as measured inside the consumer prices index, 2015 = 100. Monthly.", "unit": "index (2015=100)", "geographyCode": "K02000001", "geographyName": "United Kingdom", "geographyType": "uk", "sourceOrganisation": "Office for National Statistics", "sourceDataset": "Consumer price inflation (MM23)", "sourceSeries": "KYHJ", "sourceUrl": "https://www.ons.gov.uk/economy/inflationandpriceindices/timeseries/kyhj/mm23", "retrievalMethod": "api", "evidenceClassification": "accredited_official_statistic", "nominalOrReal": "nominal", "priceBase": null, "seasonalAdjustment": "not_seasonally_adjusted", "methodologyNote": "Measures rents on existing tenancies as well as new lets, so it rises more smoothly — and more slowly — than advertised asking rents for new tenancies.", "methodologyUrl": "https://www.ons.gov.uk/economy/inflationandpriceindices/methodologies/priceindexofprivaterentsqmi", "knownBreaks": [ "ONS moved private rents measurement to the Price Index of Private Rents methodology in 2024; the CPI component series continues." ], "derivedFrom": [], "calculation": null, "refreshCadence": "Monthly" }, "releaseDate": null }, { "file": "data/economy/cpi-index.json", "sha256": "67116401a910a371017e2142cafa738606f8a1c5934658770e11a4dd397437e5", "definition": { "metricId": "cpi-index", "frequency": "annual", "metricName": "Consumer prices index (CPI), all items", "metricDescription": "The price level of a typical basket of goods and services, 2015 = 100. Annual averages.", "unit": "index (2015=100)", "geographyCode": "K02000001", "geographyName": "United Kingdom", "geographyType": "uk", "sourceOrganisation": "Office for National Statistics", "sourceDataset": "Consumer price inflation (MM23)", "sourceSeries": "D7BT", "sourceUrl": "https://www.ons.gov.uk/economy/inflationandpriceindices/timeseries/d7bt/mm23", "retrievalMethod": "api", "evidenceClassification": "accredited_official_statistic", "nominalOrReal": "not_applicable", "priceBase": null, "seasonalAdjustment": "not_seasonally_adjusted", "methodologyNote": "An average basket. Households that spend more of their budget on food, energy or rent — typically poorer households — can face higher inflation than this.", "methodologyUrl": "https://www.ons.gov.uk/economy/inflationandpriceindices/methodologies/consumerpriceinflationincludesall3indicescpihcpiandrpiqmi", "knownBreaks": [], "derivedFrom": [], "calculation": null, "refreshCadence": "Monthly" }, "releaseDate": null }, { "file": "data/economy/cpih-index.json", "sha256": "cfcde948f8e20a23d96fcb9894d18cb2c542de74af39cdfc9f614fcaabcc12fa", "definition": { "metricId": "cpih-index", "metricName": "CPIH all items index", "metricDescription": "Consumer prices index including owner occupiers’ housing costs, 2015 = 100. Annual averages.", "unit": "index (2015=100)", "frequency": "annual", "geographyCode": "K02000001", "geographyName": "United Kingdom", "geographyType": "uk", "sourceOrganisation": "Office for National Statistics", "sourceDataset": "Consumer price inflation (MM23), series L522: “CPIH INDEX 00: ALL ITEMS 2015=100”", "sourceSeries": "L522", "sourceUrl": "https://www.ons.gov.uk/economy/inflationandpriceindices/timeseries/l522/mm23", "retrievalMethod": "api", "evidenceClassification": "accredited_official_statistic", "nominalOrReal": "not_applicable", "priceBase": null, "seasonalAdjustment": "not_seasonally_adjusted", "methodologyNote": "The deflator ONS uses for real pay. It prices owner-occupiers’ housing by rental equivalence (what the home would cost to rent), so mortgage payments are not in it.", "methodologyUrl": "https://www.ons.gov.uk/economy/inflationandpriceindices/methodologies/consumerpriceinflationincludesall3indicescpihcpiandrpiqmi", "knownBreaks": [], "derivedFrom": [], "calculation": null, "refreshCadence": "Monthly (annual average updated each January)" }, "releaseDate": "2026-09-16" }, { "file": "data/economy/energy-price-cap-electricity-unit-rate-p-kwh.json", "sha256": "9f56985c4d24b0481f691ed8c4f3dbd8fb852d0088c4c49db00ee54e1e7ee83b", "definition": { "metricId": "energy-price-cap-electricity-unit-rate-p-kwh", "metricName": "Energy price cap — electricity unit rate (direct debit)", "metricDescription": "The maximum electricity unit price under Ofgem's default tariff cap, pence per kWh including VAT, GB average, direct debit, levelised. Unit rates do not depend on any consumption assumption, so this series is unaffected by Ofgem's TDCV revisions.", "unit": "pence per kWh", "frequency": "irregular", "geographyCode": "K03000001", "geographyName": "Great Britain", "geographyType": "uk", "sourceOrganisation": "Ofgem", "sourceDataset": "Default tariff cap (energy price cap) — Annex 9, Levelisation allowance methodology and levelised cap levels", "sourceSeries": "Derived from 1c Consumption adjusted levels — Typical consumption total minus Nil consumption total", "sourceUrl": "https://www.ofgem.gov.uk/energy-regulation/domestic-and-non-domestic/energy-pricing-rules/energy-price-cap/energy-price-cap-default-tariff-levels", "retrievalMethod": "xlsx", "evidenceClassification": "calculated_from_official_data", "nominalOrReal": "nominal", "priceBase": "Cash terms of each cap period (nominal); no deflator applied", "seasonalAdjustment": "not_applicable", "methodologyNote": "The price cap caps UNIT RATES and STANDING CHARGES, not bills. It is not a maximum bill: a household that uses more energy than the assumed typical amount pays more than the headline annual figure, and one that uses less pays less. It applies to default/standard-variable tariffs only (not fixed-price deals) and to Great Britain only (England, Scotland and Wales) — Northern Ireland has a separate regime under the Utility Regulator. Figures here are the DIRECT DEBIT cap (Ofgem's internal name for that category is 'Other Payment Method'); the standard credit and prepayment caps are set at different levels and are never mixed in. Electricity figures are the single-rate metering arrangement, not Economy 7/multi-register. Ofgem defines the cap as standing charge × 365 + unit rate × kWh, so its published 'Nil consumption' and 'Typical consumption' levels invert exactly to the rates Ofgem quotes on its consumer page. Verified against Ofgem's own published rates for 1 July–30 September 2026 (electricity 26.11 p/kWh, 57.19 p/day; gas 7.33 p/kWh, 29.04 p/day) and 1 October–31 December 2026 (26.32 p/kWh, 54.83 p/day; 7.97 p/kWh, 29.68 p/day), which this calculation reproduces to the penny. A 365-day year is used for every period, matching Ofgem's own convention. Divided by the assumed consumption Ofgem states on the face of the sheet (2,500 kWh), which cancels out of the result. VAT on domestic energy is 5%; the workbook applies 0% VAT to electricity for October 2026 to March 2027 following the Government's announcement, which Ofgem records in sheet 1a's own note.", "methodologyUrl": "https://www.ofgem.gov.uk/energy-regulation/domestic-and-non-domestic/energy-pricing-rules/energy-price-cap/energy-price-cap-default-tariff-levels", "knownBreaks": [ "Licence Benchmark Annual Consumption Level realigned to the TDCV from January 2026 (cap period 15b), per Ofgem's 21 November 2025 benchmark-consumption decision. Between October 2023 and December 2025 the licence benchmark (3,100/12,000 kWh) and the TDCV used in Ofgem's published headline (2,700/11,500 kWh) were different numbers.", "TDCVs revised again from 1 July 2026 (cap period 16b) to 2,500 kWh electricity and 9,500 kWh gas, per Ofgem's 'Review of typical domestic consumption values' decision of 27 May 2026.", "Cap periods ran for six months to September 2022 and quarterly from October 2022 onward, so the observation spacing changes mid-series.", "Levelisation of the cap between payment methods began at cap period 12a (April 2024); before then the announced cap was the pre-levelised level." ], "derivedFrom": [ "energy-price-cap-electricity-annual-gbp", "energy-price-cap-electricity-standing-charge-annual-gbp" ], "calculation": { "formula": "(energy-price-cap-electricity-annual-gbp − energy-price-cap-electricity-standing-charge-annual-gbp) × 100 ÷ 2,500 kWh", "inputMetricIds": [ "energy-price-cap-electricity-annual-gbp", "energy-price-cap-electricity-standing-charge-annual-gbp" ] }, "refreshCadence": "Quarterly — Ofgem announces each cap period roughly five weeks before it starts (late February, May, August and November). Half-yearly before October 2022." }, "releaseDate": "2026-08-26" }, { "file": "data/economy/energy-price-cap-electricity-standing-charge-p-day.json", "sha256": "31c37fe77cbd40ac06da9839a04c83b5f2de77cfca70814192214d8a85db21fb", "definition": { "metricId": "energy-price-cap-electricity-standing-charge-p-day", "metricName": "Energy price cap — electricity standing charge (direct debit)", "metricDescription": "The maximum daily standing charge for electricity under Ofgem's default tariff cap, pence per day including VAT, GB average, direct debit, levelised.", "unit": "pence per day", "frequency": "irregular", "geographyCode": "K03000001", "geographyName": "Great Britain", "geographyType": "uk", "sourceOrganisation": "Ofgem", "sourceDataset": "Default tariff cap (energy price cap) — Annex 9, Levelisation allowance methodology and levelised cap levels", "sourceSeries": "Derived from 1c Consumption adjusted levels — Nil consumption total", "sourceUrl": "https://www.ofgem.gov.uk/energy-regulation/domestic-and-non-domestic/energy-pricing-rules/energy-price-cap/energy-price-cap-default-tariff-levels", "retrievalMethod": "xlsx", "evidenceClassification": "calculated_from_official_data", "nominalOrReal": "nominal", "priceBase": "Cash terms of each cap period (nominal); no deflator applied", "seasonalAdjustment": "not_applicable", "methodologyNote": "The price cap caps UNIT RATES and STANDING CHARGES, not bills. It is not a maximum bill: a household that uses more energy than the assumed typical amount pays more than the headline annual figure, and one that uses less pays less. It applies to default/standard-variable tariffs only (not fixed-price deals) and to Great Britain only (England, Scotland and Wales) — Northern Ireland has a separate regime under the Utility Regulator. Figures here are the DIRECT DEBIT cap (Ofgem's internal name for that category is 'Other Payment Method'); the standard credit and prepayment caps are set at different levels and are never mixed in. Electricity figures are the single-rate metering arrangement, not Economy 7/multi-register. Ofgem defines the cap as standing charge × 365 + unit rate × kWh, so its published 'Nil consumption' and 'Typical consumption' levels invert exactly to the rates Ofgem quotes on its consumer page. Verified against Ofgem's own published rates for 1 July–30 September 2026 (electricity 26.11 p/kWh, 57.19 p/day; gas 7.33 p/kWh, 29.04 p/day) and 1 October–31 December 2026 (26.32 p/kWh, 54.83 p/day; 7.97 p/kWh, 29.68 p/day), which this calculation reproduces to the penny. A 365-day year is used for every period, matching Ofgem's own convention. Standing charges vary substantially by region; this is the GB average. VAT on domestic energy is 5%; the workbook applies 0% VAT to electricity for October 2026 to March 2027 following the Government's announcement, which Ofgem records in sheet 1a's own note.", "methodologyUrl": "https://www.ofgem.gov.uk/energy-regulation/domestic-and-non-domestic/energy-pricing-rules/energy-price-cap/energy-price-cap-default-tariff-levels", "knownBreaks": [ "Licence Benchmark Annual Consumption Level realigned to the TDCV from January 2026 (cap period 15b), per Ofgem's 21 November 2025 benchmark-consumption decision. Between October 2023 and December 2025 the licence benchmark (3,100/12,000 kWh) and the TDCV used in Ofgem's published headline (2,700/11,500 kWh) were different numbers.", "TDCVs revised again from 1 July 2026 (cap period 16b) to 2,500 kWh electricity and 9,500 kWh gas, per Ofgem's 'Review of typical domestic consumption values' decision of 27 May 2026.", "Cap periods ran for six months to September 2022 and quarterly from October 2022 onward, so the observation spacing changes mid-series.", "Levelisation of the cap between payment methods began at cap period 12a (April 2024); before then the announced cap was the pre-levelised level." ], "derivedFrom": [ "energy-price-cap-electricity-standing-charge-annual-gbp" ], "calculation": { "formula": "energy-price-cap-electricity-standing-charge-annual-gbp (£/year) × 100 ÷ 365", "inputMetricIds": [ "energy-price-cap-electricity-standing-charge-annual-gbp" ] }, "refreshCadence": "Quarterly — Ofgem announces each cap period roughly five weeks before it starts (late February, May, August and November). Half-yearly before October 2022." }, "releaseDate": "2026-08-26" }, { "file": "data/economy/energy-price-cap-gas-unit-rate-p-kwh.json", "sha256": "7a1f912bb9d4bac47ba65e205b601796410d2dbcb3689a45a10d91891522fef7", "definition": { "metricId": "energy-price-cap-gas-unit-rate-p-kwh", "metricName": "Energy price cap — gas unit rate (direct debit)", "metricDescription": "The maximum gas unit price under Ofgem's default tariff cap, pence per kWh including VAT, GB average, direct debit, levelised. Unit rates do not depend on any consumption assumption, so this series is unaffected by Ofgem's TDCV revisions.", "unit": "pence per kWh", "frequency": "irregular", "geographyCode": "K03000001", "geographyName": "Great Britain", "geographyType": "uk", "sourceOrganisation": "Ofgem", "sourceDataset": "Default tariff cap (energy price cap) — Annex 9, Levelisation allowance methodology and levelised cap levels", "sourceSeries": "Derived from 1c Consumption adjusted levels — Typical consumption total minus Nil consumption total", "sourceUrl": "https://www.ofgem.gov.uk/energy-regulation/domestic-and-non-domestic/energy-pricing-rules/energy-price-cap/energy-price-cap-default-tariff-levels", "retrievalMethod": "xlsx", "evidenceClassification": "calculated_from_official_data", "nominalOrReal": "nominal", "priceBase": "Cash terms of each cap period (nominal); no deflator applied", "seasonalAdjustment": "not_applicable", "methodologyNote": "The price cap caps UNIT RATES and STANDING CHARGES, not bills. It is not a maximum bill: a household that uses more energy than the assumed typical amount pays more than the headline annual figure, and one that uses less pays less. It applies to default/standard-variable tariffs only (not fixed-price deals) and to Great Britain only (England, Scotland and Wales) — Northern Ireland has a separate regime under the Utility Regulator. Figures here are the DIRECT DEBIT cap (Ofgem's internal name for that category is 'Other Payment Method'); the standard credit and prepayment caps are set at different levels and are never mixed in. Electricity figures are the single-rate metering arrangement, not Economy 7/multi-register. Ofgem defines the cap as standing charge × 365 + unit rate × kWh, so its published 'Nil consumption' and 'Typical consumption' levels invert exactly to the rates Ofgem quotes on its consumer page. Verified against Ofgem's own published rates for 1 July–30 September 2026 (electricity 26.11 p/kWh, 57.19 p/day; gas 7.33 p/kWh, 29.04 p/day) and 1 October–31 December 2026 (26.32 p/kWh, 54.83 p/day; 7.97 p/kWh, 29.68 p/day), which this calculation reproduces to the penny. A 365-day year is used for every period, matching Ofgem's own convention. Divided by the assumed consumption Ofgem states on the face of the sheet (9,500 kWh), which cancels out of the result. VAT on domestic energy is 5%; the workbook applies 0% VAT to electricity for October 2026 to March 2027 following the Government's announcement, which Ofgem records in sheet 1a's own note.", "methodologyUrl": "https://www.ofgem.gov.uk/energy-regulation/domestic-and-non-domestic/energy-pricing-rules/energy-price-cap/energy-price-cap-default-tariff-levels", "knownBreaks": [ "Licence Benchmark Annual Consumption Level realigned to the TDCV from January 2026 (cap period 15b), per Ofgem's 21 November 2025 benchmark-consumption decision. Between October 2023 and December 2025 the licence benchmark (3,100/12,000 kWh) and the TDCV used in Ofgem's published headline (2,700/11,500 kWh) were different numbers.", "TDCVs revised again from 1 July 2026 (cap period 16b) to 2,500 kWh electricity and 9,500 kWh gas, per Ofgem's 'Review of typical domestic consumption values' decision of 27 May 2026.", "Cap periods ran for six months to September 2022 and quarterly from October 2022 onward, so the observation spacing changes mid-series.", "Levelisation of the cap between payment methods began at cap period 12a (April 2024); before then the announced cap was the pre-levelised level." ], "derivedFrom": [ "energy-price-cap-gas-annual-gbp", "energy-price-cap-gas-standing-charge-annual-gbp" ], "calculation": { "formula": "(energy-price-cap-gas-annual-gbp − energy-price-cap-gas-standing-charge-annual-gbp) × 100 ÷ 9,500 kWh", "inputMetricIds": [ "energy-price-cap-gas-annual-gbp", "energy-price-cap-gas-standing-charge-annual-gbp" ] }, "refreshCadence": "Quarterly — Ofgem announces each cap period roughly five weeks before it starts (late February, May, August and November). Half-yearly before October 2022." }, "releaseDate": "2026-08-26" }, { "file": "data/economy/energy-price-cap-gas-standing-charge-p-day.json", "sha256": "73225d55f4812434d0dcc8eeaa8c0588fdc30b8f09cbc0a2be35abba4ba28d1d", "definition": { "metricId": "energy-price-cap-gas-standing-charge-p-day", "metricName": "Energy price cap — gas standing charge (direct debit)", "metricDescription": "The maximum daily standing charge for gas under Ofgem's default tariff cap, pence per day including VAT, GB average, direct debit, levelised.", "unit": "pence per day", "frequency": "irregular", "geographyCode": "K03000001", "geographyName": "Great Britain", "geographyType": "uk", "sourceOrganisation": "Ofgem", "sourceDataset": "Default tariff cap (energy price cap) — Annex 9, Levelisation allowance methodology and levelised cap levels", "sourceSeries": "Derived from 1c Consumption adjusted levels — Nil consumption total", "sourceUrl": "https://www.ofgem.gov.uk/energy-regulation/domestic-and-non-domestic/energy-pricing-rules/energy-price-cap/energy-price-cap-default-tariff-levels", "retrievalMethod": "xlsx", "evidenceClassification": "calculated_from_official_data", "nominalOrReal": "nominal", "priceBase": "Cash terms of each cap period (nominal); no deflator applied", "seasonalAdjustment": "not_applicable", "methodologyNote": "The price cap caps UNIT RATES and STANDING CHARGES, not bills. It is not a maximum bill: a household that uses more energy than the assumed typical amount pays more than the headline annual figure, and one that uses less pays less. It applies to default/standard-variable tariffs only (not fixed-price deals) and to Great Britain only (England, Scotland and Wales) — Northern Ireland has a separate regime under the Utility Regulator. Figures here are the DIRECT DEBIT cap (Ofgem's internal name for that category is 'Other Payment Method'); the standard credit and prepayment caps are set at different levels and are never mixed in. Electricity figures are the single-rate metering arrangement, not Economy 7/multi-register. Ofgem defines the cap as standing charge × 365 + unit rate × kWh, so its published 'Nil consumption' and 'Typical consumption' levels invert exactly to the rates Ofgem quotes on its consumer page. Verified against Ofgem's own published rates for 1 July–30 September 2026 (electricity 26.11 p/kWh, 57.19 p/day; gas 7.33 p/kWh, 29.04 p/day) and 1 October–31 December 2026 (26.32 p/kWh, 54.83 p/day; 7.97 p/kWh, 29.68 p/day), which this calculation reproduces to the penny. A 365-day year is used for every period, matching Ofgem's own convention. Standing charges vary substantially by region; this is the GB average. VAT on domestic energy is 5%; the workbook applies 0% VAT to electricity for October 2026 to March 2027 following the Government's announcement, which Ofgem records in sheet 1a's own note.", "methodologyUrl": "https://www.ofgem.gov.uk/energy-regulation/domestic-and-non-domestic/energy-pricing-rules/energy-price-cap/energy-price-cap-default-tariff-levels", "knownBreaks": [ "Licence Benchmark Annual Consumption Level realigned to the TDCV from January 2026 (cap period 15b), per Ofgem's 21 November 2025 benchmark-consumption decision. Between October 2023 and December 2025 the licence benchmark (3,100/12,000 kWh) and the TDCV used in Ofgem's published headline (2,700/11,500 kWh) were different numbers.", "TDCVs revised again from 1 July 2026 (cap period 16b) to 2,500 kWh electricity and 9,500 kWh gas, per Ofgem's 'Review of typical domestic consumption values' decision of 27 May 2026.", "Cap periods ran for six months to September 2022 and quarterly from October 2022 onward, so the observation spacing changes mid-series.", "Levelisation of the cap between payment methods began at cap period 12a (April 2024); before then the announced cap was the pre-levelised level." ], "derivedFrom": [ "energy-price-cap-gas-standing-charge-annual-gbp" ], "calculation": { "formula": "energy-price-cap-gas-standing-charge-annual-gbp (£/year) × 100 ÷ 365", "inputMetricIds": [ "energy-price-cap-gas-standing-charge-annual-gbp" ] }, "refreshCadence": "Quarterly — Ofgem announces each cap period roughly five weeks before it starts (late February, May, August and November). Half-yearly before October 2022." }, "releaseDate": "2026-08-26" } ], "coverage": { "history": "UK annual price proxies, 2015–2025; fixed user-selected category spending, not a literal product basket", "energy": "Great Britain, Direct Debit default tariff average rates; not Northern Ireland or fixed tariffs", "cash": "User-entered monthly bills; not a population estimate" }, "limitations": [ "No UKDS respondent data used.", "Historical basket excludes costs outside the four selected categories.", "Within-category substitution and quality adjustment remain in the ONS proxies.", "No blanket claim of superior statistical accuracy.", "Ofgem figures annualise a single quarter at fixed usage; they are not a forecast of the next year.", "No complete free ten-year multi-retailer transaction panel has been obtained." ] }