{
 "pcon24cd": "E14001284",
 "name": "Hertsmere",
 "nation": "England",
 "number1": {
  "visible": false,
  "note": "No big wind farm on the national grid is mapped to this constituency. Smaller wind farms here can still be paid to switch off by the local network, but those payments are not visible in national data \u2014 the \u00a3 figure is a floor.",
  "invisible_wind": {
   "mw": 0.0,
   "sites": 0
  }
 },
 "number2": {
  "stuck_mw": 1.4,
  "stuck_mw_int": 1,
  "stuck_sites": 5,
  "homes_equivalent": 500,
  "homes_vs_seat_households": 0.01,
  "stuck_mw_12m_cut": 1.7,
  "consented_not_built_mw_any_age": 1.7,
  "operational_mw": 13.0,
  "operational_homes_equivalent": 4700,
  "refused_5y_mw": 0.0,
  "withdrawn_5y_mw": 49.9,
  "median_months_to_decision": 1.7,
  "rank": 385,
  "tech_mix": {
   "solar": 1.4
  },
  "tech_summary": "all solar",
  "waiting_vs_running": 0.1,
  "projects": [
   {
    "site_name": "Blanche Lane, South Mimms - Solar Panels",
    "address": "N I B S C Blanche Lane South Mimms",
    "repd_ref_id": 11499,
    "technology": "Solar Photovoltaics",
    "capacity_mw": 0.6,
    "homes_equivalent": 200,
    "consented": "2023-08-23",
    "months_waiting": 35.3,
    "status": "Under Construction"
   },
   {
    "site_name": "Unit 2, York Crescent - Solar Panels",
    "address": "Unit 2, Site Of Former J Sainsbury Distribution Depot, York Crescent, Borehamwood",
    "repd_ref_id": 12385,
    "technology": "Solar Photovoltaics",
    "capacity_mw": 0.2,
    "homes_equivalent": 100,
    "consented": "2022-11-22",
    "months_waiting": 44.3,
    "status": "Awaiting Construction"
   },
   {
    "site_name": "NIBSC, Blanche Lane - Solar Panels",
    "address": "Nibsc, Blanche Lane, South Mimms, Potters Bar",
    "repd_ref_id": 15136,
    "technology": "Solar Photovoltaics",
    "capacity_mw": 0.2,
    "homes_equivalent": 100,
    "consented": "2023-12-07",
    "months_waiting": 31.9,
    "status": "Awaiting Construction"
   },
   {
    "site_name": "Willows Activity Farm, Colney Heath - Solar Array",
    "address": "Willows Activity Farm Coursers Road Colney Heath St Albans",
    "repd_ref_id": 11021,
    "technology": "Solar Photovoltaics",
    "capacity_mw": 0.2,
    "homes_equivalent": 100,
    "consented": "2022-05-18",
    "months_waiting": 50.5,
    "status": "Awaiting Construction"
   },
   {
    "site_name": "North London Ad Plant, Coursers Road - Solar Panels",
    "address": "North London Ad Plant, Coursers Road, Colney Heath, St Albans",
    "repd_ref_id": 16681,
    "technology": "Solar Photovoltaics",
    "capacity_mw": 0.2,
    "homes_equivalent": 100,
    "consented": "2024-08-23",
    "months_waiting": 23.3,
    "status": "Awaiting Construction"
   },
   {
    "site_name": "Centennial Park, Centennial Avenue - Solar Panels",
    "address": "Unit 290, Centennial Park, Centennial Avenue, Elstree, Borehamwood",
    "repd_ref_id": 17870,
    "technology": "Solar Photovoltaics",
    "capacity_mw": 0.2,
    "homes_equivalent": 100,
    "consented": "2025-02-25",
    "months_waiting": 17.2,
    "status": "Awaiting Construction"
   },
   {
    "site_name": "Multi Storage, Cranborne Industrial Estate - Solar Panels",
    "address": "Units 3-4 At 26 Cranborne Industrial Estate Cranborne Road",
    "repd_ref_id": 13497,
    "technology": "Solar Photovoltaics",
    "capacity_mw": 0.2,
    "homes_equivalent": 100,
    "consented": "2023-04-26",
    "months_waiting": 39.3,
    "status": "Awaiting Construction"
   }
  ]
 },
 "number3": {
  "applicable": true,
  "per_household_gbp": 91.96,
  "seat_households": 41939,
  "seat_total_gbp": 3900000,
  "framings": {
   "days_of_home_electricity": 51.0
  },
  "note": "National figure: the per-household cost is the same for every GB seat; only the seat total varies with household count."
 },
 "batteries": {
  "operating_mw": 0.0,
  "building_mw": 0.0,
  "approved_mw": 170.0,
  "approved_24m_mw": 0.0,
  "refused_mw": 0.0,
  "submitted_mw": 0.0,
  "sites": [
   {
    "site_name": "Hilfield Lane, Aldenham - Battery Energy Storage",
    "capacity_mw": 170.0,
    "status": "approved",
    "year": 2026,
    "homes_while_discharging": 596000
   }
  ]
 },
 "pipeline_projects": [
  {
   "site_name": "Hilfield Lane, Aldenham - Battery Energy Storage",
   "repd_ref_id": 17387,
   "technology": "Battery",
   "capacity_mw": 170.0,
   "homes_equivalent": null,
   "status": "Awaiting Construction",
   "consented": "2026-01-16",
   "refused": null,
   "planning_authority": "Hertsmere",
   "planning_ref": "25/0153/FUL",
   "operator": "Penso Power (BW ESS)",
   "address": "W/O Hilfield Lane, Aldenham, Watford",
   "reason": {
    "reason": "consented_no_activity",
    "label": "Approved less than a year ago \u2014 nothing has happened since",
    "who": "the developer and the network company",
    "evidence": {
     "consent_date": "2026-01-16",
     "years_since_consent": 0.5
    },
    "all_matches": [
     "consented_no_activity"
    ]
   },
   "earliest": null,
   "tec": null
  },
  {
   "site_name": "Wrotham Park - Solar Panels",
   "repd_ref_id": 19077,
   "technology": "Solar Photovoltaics",
   "capacity_mw": 30.0,
   "homes_equivalent": 11000,
   "status": "Application Submitted",
   "consented": null,
   "refused": null,
   "planning_authority": "Hertsmere",
   "planning_ref": "25/1023/FUL",
   "operator": "Enviromena",
   "address": "N/O Earls Lane, South Mimms, Potters Bar",
   "reason": {
    "reason": "planning_overdue",
    "label": "Waiting 13 months for a planning decision",
    "who": "Hertsmere Council",
    "evidence": {
     "submitted": "2025-07-18",
     "months_waiting": 13
    },
    "all_matches": [
     "planning_overdue"
    ]
   },
   "earliest": null,
   "tec": null
  }
 ],
 "projects_withheld_unreferenced": 0,
 "neighbours": [
  "E14001279",
  "E14001270",
  "E14001496",
  "E14001169",
  "E14001503",
  "E14001225",
  "E14001139",
  "E14001568",
  "E14001507",
  "E14001573",
  "E14001393"
 ],
 "flags": [
  "curtailment_not_visible"
 ],
 "windows": {
  "curtailment": [
   "2025-08-01",
   "2026-07-31"
  ],
  "repd_as_of": "2026-08-03"
 }
}