{
  "_schema": "Every tangible framing on the site resolves through this file. v2 uses ONE framing for money, everywhere: hours of home electricity, H = GBP / (households x (TDCV_kWh/8760) x unit_rate). Fields: value, unit, source, source_url, as_of, verified, needs_verification, notes. Never hardcode any of these in templates or frontend.",
  "tdcv_electricity_kwh": {
    "value": 2500,
    "unit": "kWh/year",
    "source": "Ofgem Typical Domestic Consumption Values, medium electricity profile (Profile Class 1)",
    "source_url": "https://www.ofgem.gov.uk/sites/default/files/2026-05/Review%20of%20typical%20domestic%20consumption%20values%20decision.pdf",
    "as_of": "2026-07-01",
    "verified": "2026-08-25",
    "needs_verification": false,
    "notes": "Cut from 2,700 to 2,500 kWh/yr effective 1 July 2026. Used for homes-equivalent and hours-of-electricity conversions."
  },
  "unit_rate_gbp_per_kwh": {
    "value": 0.2611,
    "unit": "GBP/kWh",
    "source": "Ofgem price cap Jul-Sep 2026, electricity single-rate direct-debit unit price including VAT (standing charge 57.19p/day excluded)",
    "source_url": "https://www.ofgem.gov.uk/news/changes-energy-price-cap-between-1-july-and-30-september-2026",
    "as_of": "2026-07-01",
    "verified": "2026-08-25",
    "needs_verification": false,
    "notes": "Used in the hours-of-home-electricity framing for every £ figure. Oct-Dec 2026 cap announcement expected 26 Aug 2026 — re-verify then."
  },
  "capacity_factor_onshore_wind": {
    "value": 0.2496,
    "unit": "fraction",
    "source": "DUKES 2026 Table 6.3, mean of annual load factors 2021-2025, onshore wind (average-capacity basis)",
    "source_url": "https://assets.publishing.service.gov.uk/media/6a6a276f8319ab05f7caa1cf/DUKES_6.3.xlsx",
    "as_of": "2026-07-30",
    "verified": "2026-08-25",
    "needs_verification": false,
    "notes": "Mean of 2021-2025 annual values (23.44, 27.32, 25.06, 24.98, 24.02%)."
  },
  "capacity_factor_offshore_wind": {
    "value": 0.3813,
    "unit": "fraction",
    "source": "DUKES 2026 Table 6.3, mean of annual load factors 2021-2025, offshore wind (average-capacity basis)",
    "source_url": "https://assets.publishing.service.gov.uk/media/6a6a276f8319ab05f7caa1cf/DUKES_6.3.xlsx",
    "as_of": "2026-07-30",
    "verified": "2026-08-25",
    "needs_verification": false,
    "notes": "Mean of 2021-2025 annual values (37.75, 41.29, 39.49, 35.99, 36.12%)."
  },
  "capacity_factor_solar_pv": {
    "value": 0.1036,
    "unit": "fraction",
    "source": "DUKES 2026 Table 6.3, mean of annual load factors 2021-2025, solar PV (average-capacity basis)",
    "source_url": "https://assets.publishing.service.gov.uk/media/6a6a276f8319ab05f7caa1cf/DUKES_6.3.xlsx",
    "as_of": "2026-07-30",
    "verified": "2026-08-25",
    "needs_verification": false,
    "notes": "Mean of 2021-2025 annual values (9.93, 11.06, 10.50, 9.22, 11.08%)."
  },
  "capacity_factor_hydro": {
    "value": 0.3279,
    "unit": "fraction",
    "source": "DUKES 2026 Table 6.3, mean of annual load factors 2021-2025, natural-flow hydro (average-capacity basis)",
    "source_url": "https://assets.publishing.service.gov.uk/media/6a6a276f8319ab05f7caa1cf/DUKES_6.3.xlsx",
    "as_of": "2026-07-30",
    "verified": "2026-08-25",
    "needs_verification": false,
    "notes": "Mean of 2021-2025 annual values (32.77, 30.60, 33.82, 34.41, 32.34%)."
  },
  "_retired": "v1 comparators (nurse salary, GP appointment, TV licence, council tax band D, school budgets) were dropped in v2 for a single consistent framing; their last verified values are in git history at tag/commit 73e6aec."
}