{
 "source": "THRIVE, from DESNZ Quarterly Energy Prices (OGL v3.0), the Ofgem energy price cap and the Zapmap Price Index. thrivefleet.co.uk/data/fleet-charging-costs",
 "terms": "https://www.thrivefleet.co.uk/data/terms",
 "methodology": "https://www.thrivefleet.co.uk/data/fleet-charging-costs",
 "unit": "pence per kWh / pence per mile / GBP a year; business prices exclude VAT",
 "prices": {
  "home": 26.11,
  "homeIncludesVat": true,
  "depot": {
   "very_small": 35.02,
   "small": 28.76,
   "small_medium": 28.08,
   "medium": 25
  },
  "publicStandard": 54,
  "publicRapid": 77,
  "diesel": 195.53,
  "dieselMpg": 36,
  "kwhPerMile": 0.35,
  "aerHome": 7
 },
 "sources": [
  {
   "label": "Depot electricity",
   "value": "35.02p to 25p/kWh by business size, excl VAT",
   "period": "2026-01-01",
   "url": "https://www.gov.uk/government/statistical-data-sets/gas-and-electricity-prices-in-the-non-domestic-sector",
   "note": "DESNZ QEP table 3.4.2, Small band (499 MWh/yr max), Q1 2026, incl CCL, excl VAT",
   "checked": "2026-09-22T09:31:07.227+00:00"
  },
  {
   "label": "Home electricity",
   "value": "26.11p/kWh incl VAT",
   "period": "2026-07-01",
   "url": "https://www.ofgem.gov.uk/your-energy-supply/your-energy-bill/energy-price-cap-unit-rates-and-standing-charges",
   "note": "Ofgem price cap, 1 July to 30 September 2026, average unit rate by Direct Debit, incl 5% VAT",
   "checked": "2026-09-22T09:31:07.892+00:00"
  },
  {
   "label": "Public, standard chargers",
   "value": "54p/kWh incl VAT",
   "period": "2026-08-01",
   "url": "https://www.zapmap.com/ev-stats/charging-price-index",
   "note": "Zapmap Price Index, August 2026, weighted average PAYG, incl VAT, Standard and Standard Plus (3-49kW)",
   "checked": "2026-09-22T09:31:08.194+00:00"
  },
  {
   "label": "Public, rapid chargers",
   "value": "77p/kWh incl VAT",
   "period": "2026-08-01",
   "url": "https://www.zapmap.com/ev-stats/charging-price-index",
   "note": "Zapmap Price Index, August 2026, weighted average PAYG, incl VAT, Rapid and Ultra-rapid (50kW+)",
   "checked": "2026-09-22T09:31:08.194+00:00"
  },
  {
   "label": "Van efficiency",
   "value": "0.35 kWh a mile",
   "period": null,
   "url": null,
   "note": "Methodology v1 assumption: representative electric-van energy use per mile (kWh). Documented on /data/cost-to-charge.",
   "checked": "2026-07-24T14:40:36.077418+00:00"
  },
  {
   "label": "HMRC advisory electric rate, home",
   "value": "7p a mile",
   "period": "2026-09-01",
   "url": "https://www.gov.uk/guidance/advisory-fuel-rates",
   "note": "HMRC advisory electric rate — home charging (separate public rate since 1 September 2025)",
   "checked": "2026-09-22T09:31:02.769+00:00"
  }
 ],
 "checked": "2026-09-22T09:31:02.769+00:00",
 "fleets": [
  {
   "inputs": {
    "depotShare": 0.7,
    "homeShare": 0,
    "publicShare": 0.3,
    "rapidShareOfPublic": 0.5,
    "workingDays": 250,
    "chargerKw": 7,
    "installPerCharger": null,
    "vans": 10,
    "milesPerVan": 18000
   },
   "annualMiles": 180000,
   "annualKwh": 63000,
   "depotMwh": 44.1,
   "band": {
    "key": "small",
    "label": "Small",
    "maxMwh": 500
   },
   "routes": [
    {
     "key": "depot",
     "label": "Depot (Small business band)",
     "pPerKwh": 28.76,
     "pPerMile": 10.1,
     "annual": 18119
    },
    {
     "key": "home",
     "label": "At drivers' homes",
     "pPerKwh": 26.11,
     "pPerMile": 9.1,
     "annual": 16449
    },
    {
     "key": "publicStandard",
     "label": "Public, standard chargers",
     "pPerKwh": 45,
     "pPerMile": 15.7,
     "annual": 28350
    },
    {
     "key": "publicRapid",
     "label": "Public, rapid chargers",
     "pPerKwh": 64.17,
     "pPerMile": 22.5,
     "annual": 40425
    },
    {
     "key": "diesel",
     "label": "Diesel equivalent",
     "pPerKwh": null,
     "pPerMile": 20.6,
     "annual": 37037
    }
   ],
   "mix": {
    "pPerMile": 12.8,
    "annual": 22999,
    "vsDiesel": 14038
   },
   "aerGap": {
    "pPerMile": 2.1,
    "annual": 0
   },
   "depot": {
    "kwhPerVanPerNight": 17.6,
    "hoursPerNight": 2.5,
    "chargers": 10,
    "peakKw": 70
   },
   "payback": {
    "annualSaving": 11388,
    "installTotal": null,
    "months": null
   }
  },
  {
   "inputs": {
    "depotShare": 0.7,
    "homeShare": 0,
    "publicShare": 0.3,
    "rapidShareOfPublic": 0.5,
    "workingDays": 250,
    "chargerKw": 7,
    "installPerCharger": null,
    "vans": 50,
    "milesPerVan": 18000
   },
   "annualMiles": 900000,
   "annualKwh": 315000,
   "depotMwh": 220.5,
   "band": {
    "key": "small",
    "label": "Small",
    "maxMwh": 500
   },
   "routes": [
    {
     "key": "depot",
     "label": "Depot (Small business band)",
     "pPerKwh": 28.76,
     "pPerMile": 10.1,
     "annual": 90594
    },
    {
     "key": "home",
     "label": "At drivers' homes",
     "pPerKwh": 26.11,
     "pPerMile": 9.1,
     "annual": 82246
    },
    {
     "key": "publicStandard",
     "label": "Public, standard chargers",
     "pPerKwh": 45,
     "pPerMile": 15.7,
     "annual": 141750
    },
    {
     "key": "publicRapid",
     "label": "Public, rapid chargers",
     "pPerKwh": 64.17,
     "pPerMile": 22.5,
     "annual": 202125
    },
    {
     "key": "diesel",
     "label": "Diesel equivalent",
     "pPerKwh": null,
     "pPerMile": 20.6,
     "annual": 185187
    }
   ],
   "mix": {
    "pPerMile": 12.8,
    "annual": 114997,
    "vsDiesel": 70190
   },
   "aerGap": {
    "pPerMile": 2.1,
    "annual": 0
   },
   "depot": {
    "kwhPerVanPerNight": 17.6,
    "hoursPerNight": 2.5,
    "chargers": 50,
    "peakKw": 350
   },
   "payback": {
    "annualSaving": 56940,
    "installTotal": null,
    "months": null
   }
  },
  {
   "inputs": {
    "depotShare": 0.7,
    "homeShare": 0,
    "publicShare": 0.3,
    "rapidShareOfPublic": 0.5,
    "workingDays": 250,
    "chargerKw": 7,
    "installPerCharger": null,
    "vans": 100,
    "milesPerVan": 18000
   },
   "annualMiles": 1800000,
   "annualKwh": 630000,
   "depotMwh": 441,
   "band": {
    "key": "small",
    "label": "Small",
    "maxMwh": 500
   },
   "routes": [
    {
     "key": "depot",
     "label": "Depot (Small business band)",
     "pPerKwh": 28.76,
     "pPerMile": 10.1,
     "annual": 181188
    },
    {
     "key": "home",
     "label": "At drivers' homes",
     "pPerKwh": 26.11,
     "pPerMile": 9.1,
     "annual": 164493
    },
    {
     "key": "publicStandard",
     "label": "Public, standard chargers",
     "pPerKwh": 45,
     "pPerMile": 15.7,
     "annual": 283500
    },
    {
     "key": "publicRapid",
     "label": "Public, rapid chargers",
     "pPerKwh": 64.17,
     "pPerMile": 22.5,
     "annual": 404250
    },
    {
     "key": "diesel",
     "label": "Diesel equivalent",
     "pPerKwh": null,
     "pPerMile": 20.6,
     "annual": 370374
    }
   ],
   "mix": {
    "pPerMile": 12.8,
    "annual": 229994,
    "vsDiesel": 140380
   },
   "aerGap": {
    "pPerMile": 2.1,
    "annual": 0
   },
   "depot": {
    "kwhPerVanPerNight": 17.6,
    "hoursPerNight": 2.5,
    "chargers": 100,
    "peakKw": 700
   },
   "payback": {
    "annualSaving": 113881,
    "installTotal": null,
    "months": null
   }
  }
 ]
}