{
 "pcon24cd": "E14001573",
 "name": "Welwyn Hatfield",
 "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": 3.8,
  "stuck_mw_int": 4,
  "stuck_sites": 5,
  "homes_equivalent": 1400,
  "homes_vs_seat_households": 0.03,
  "stuck_mw_12m_cut": 14.1,
  "consented_not_built_mw_any_age": 14.1,
  "operational_mw": 0.0,
  "operational_homes_equivalent": 0,
  "refused_5y_mw": 0.0,
  "withdrawn_5y_mw": 0.0,
  "median_months_to_decision": 1.8,
  "rank": 278,
  "tech_mix": {
   "solar": 3.8
  },
  "tech_summary": "all solar",
  "waiting_vs_running": null,
  "projects": [
   {
    "site_name": "Stanborough, Hatfield - Solar Array",
    "address": "Land East of A6129 Stanborough Hatfield",
    "repd_ref_id": 14878,
    "technology": "Solar Photovoltaics",
    "capacity_mw": 10.0,
    "homes_equivalent": 3600,
    "consented": "2024-09-16",
    "months_waiting": 22.5,
    "status": "Awaiting Construction"
   },
   {
    "site_name": "Computacenter Warehouse",
    "address": "Computer centre UK Ltd, Hatfield Avenue, Hatfield, Hertfordshire",
    "repd_ref_id": 7290,
    "technology": "Solar Photovoltaics",
    "capacity_mw": 2.0,
    "homes_equivalent": 700,
    "consented": "2019-03-08",
    "months_waiting": 88.9,
    "status": "Under Construction"
   },
   {
    "site_name": "Gypsy Moth Avenue - Solar Array",
    "address": "Ocado Ltd Gypsy Moth Avenue",
    "repd_ref_id": 10943,
    "technology": "Solar Photovoltaics",
    "capacity_mw": 1.2,
    "homes_equivalent": 400,
    "consented": "2022-08-25",
    "months_waiting": 47.3,
    "status": "Awaiting Construction"
   },
   {
    "site_name": "Welham Green - Solar Panels",
    "address": "The Davall Stock Gear Co Travellers Lane Welham Green Hatfield",
    "repd_ref_id": 11550,
    "technology": "Solar Photovoltaics",
    "capacity_mw": 0.3,
    "homes_equivalent": 100,
    "consented": "2022-08-15",
    "months_waiting": 47.6,
    "status": "Awaiting Construction"
   },
   {
    "site_name": "Morrisons Supermarket - Solar PV Array",
    "address": "Morrisons Supermarket, Black Fan Road, Welwyn Garden City",
    "repd_ref_id": 17205,
    "technology": "Solar Photovoltaics",
    "capacity_mw": 0.3,
    "homes_equivalent": 100,
    "consented": "2024-10-17",
    "months_waiting": 21.5,
    "status": "Awaiting Construction"
   },
   {
    "site_name": "Ridgeway Academy, Herns Lane - Solar Panels",
    "address": "Ridgeway Academy, Herns Lane, Welwyn Garden City",
    "repd_ref_id": 14751,
    "technology": "Solar Photovoltaics",
    "capacity_mw": 0.2,
    "homes_equivalent": 100,
    "consented": "2023-10-16",
    "months_waiting": 33.6,
    "status": "Awaiting Construction"
   },
   {
    "site_name": "Queenswood School, Shepherds Way - Solar Panels",
    "address": "Queenswood School, Shepherds Way, Hatfield",
    "repd_ref_id": 14081,
    "technology": "Solar Photovoltaics",
    "capacity_mw": 0.2,
    "homes_equivalent": 100,
    "consented": "2023-08-17",
    "months_waiting": 35.5,
    "status": "Awaiting Construction"
   }
  ]
 },
 "number3": {
  "applicable": true,
  "per_household_gbp": 91.96,
  "seat_households": 43833,
  "seat_total_gbp": 4000000,
  "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": 49.5,
  "approved_mw": 11.9,
  "approved_24m_mw": 10.2,
  "refused_mw": 0.0,
  "submitted_mw": 0.0,
  "sites": [
   {
    "site_name": "Tollgate Farm Battery Storage",
    "capacity_mw": 49.5,
    "status": "building",
    "year": 2019,
    "homes_while_discharging": 173000
   },
   {
    "site_name": "Dellsome Power Hatfield Grid Station - Energy storage facility",
    "capacity_mw": 5.0,
    "status": "approved",
    "year": 2021,
    "homes_while_discharging": 18000
   },
   {
    "site_name": "Welwyn Power - Energy Storage Facility",
    "capacity_mw": 5.0,
    "status": "approved",
    "year": 2022,
    "homes_while_discharging": 18000
   },
   {
    "site_name": "Stanborough, Hatfield - Battery Energy Storage System",
    "capacity_mw": 1.5,
    "status": "approved",
    "year": 2024,
    "homes_while_discharging": 5300
   },
   {
    "site_name": "Brownfields - Battery Storage",
    "capacity_mw": 0.2,
    "status": "approved",
    "year": 2023,
    "homes_while_discharging": 700
   },
   {
    "site_name": "Verge In Highway, Great North Road - Energy Storage System",
    "capacity_mw": 0.2,
    "status": "approved",
    "year": 2025,
    "homes_while_discharging": 700
   }
  ]
 },
 "pipeline_projects": [
  {
   "site_name": "Tollgate Farm Battery Storage",
   "repd_ref_id": 7335,
   "technology": "Battery",
   "capacity_mw": 49.5,
   "homes_equivalent": null,
   "status": "Under Construction",
   "consented": "2019-01-22",
   "refused": null,
   "planning_authority": "Welwyn Hatfield",
   "planning_ref": "6/2017/2340/FULL",
   "operator": "RNA Energy / Harmony Energy Storage/ Tag Energy UK",
   "address": "Tollgate Farm, Tollgate Road, North Mymms",
   "reason": {
    "reason": "building",
    "label": "Under construction",
    "who": "the developer",
    "evidence": {},
    "all_matches": [
     "building"
    ]
   },
   "earliest": "2027 (in construction)",
   "tec": null
  },
  {
   "site_name": "Tollgate Farm, Welham Green - Solar Farm",
   "repd_ref_id": 19478,
   "technology": "Solar Photovoltaics",
   "capacity_mw": 16.0,
   "homes_equivalent": 5800,
   "status": "Application Submitted",
   "consented": null,
   "refused": null,
   "planning_authority": "Welwyn Hatfield",
   "planning_ref": "6/2025/1458/MAJ",
   "operator": "Brockwell Energy Limited",
   "address": "Tollgate Farm, Welham Green, St Albans",
   "reason": {
    "reason": "planning_overdue",
    "label": "Waiting 13 months for a planning decision",
    "who": "Welwyn Hatfield Council",
    "evidence": {
     "submitted": "2025-07-11",
     "months_waiting": 13
    },
    "all_matches": [
     "planning_overdue"
    ]
   },
   "earliest": null,
   "tec": null
  },
  {
   "site_name": "Stanborough, Hatfield - Solar Array",
   "repd_ref_id": 14878,
   "technology": "Solar Photovoltaics",
   "capacity_mw": 10.0,
   "homes_equivalent": 3600,
   "status": "Awaiting Construction",
   "consented": "2024-09-16",
   "refused": null,
   "planning_authority": "Welwyn Hatfield",
   "planning_ref": "6/2023/1802/MAJ",
   "operator": "J Reddington Limited",
   "address": "Land East of A6129 Stanborough Hatfield",
   "reason": {
    "reason": "consented_no_activity",
    "label": "Approved a year ago \u2014 nothing has happened since",
    "who": "the developer and the network company",
    "evidence": {
     "consent_date": "2024-09-16",
     "years_since_consent": 1.9
    },
    "all_matches": [
     "consented_no_activity"
    ]
   },
   "earliest": null,
   "tec": null
  },
  {
   "site_name": "Dellsome Power Hatfield Grid Station - Energy storage facility",
   "repd_ref_id": 9019,
   "technology": "Battery",
   "capacity_mw": 5.0,
   "homes_equivalent": null,
   "status": "Awaiting Construction",
   "consented": "2021-07-09",
   "refused": null,
   "planning_authority": "Welwyn Hatfield",
   "planning_ref": "6/2021/1020/FULL",
   "operator": "AMP Energy Services Limited",
   "address": "Dellsome Power Hatfield Grid Station, Dellsome Lane, St. Albans",
   "reason": {
    "reason": "consented_no_activity",
    "label": "Approved 5 years ago \u2014 nothing has happened since",
    "who": "the developer and the network company",
    "evidence": {
     "consent_date": "2021-07-09",
     "years_since_consent": 5.1
    },
    "all_matches": [
     "consented_no_activity"
    ]
   },
   "earliest": null,
   "tec": null
  },
  {
   "site_name": "Welwyn Power - Energy Storage Facility",
   "repd_ref_id": 11536,
   "technology": "Battery",
   "capacity_mw": 5.0,
   "homes_equivalent": null,
   "status": "Awaiting Construction",
   "consented": "2022-08-05",
   "refused": null,
   "planning_authority": "Welwyn Hatfield",
   "planning_ref": "6/2022/1190/FULL",
   "operator": "AMP Energy Services Limited",
   "address": "Welwyn Power west side of Tewin Road Welwyn Garden City",
   "reason": {
    "reason": "consented_no_activity",
    "label": "Approved 4 years ago \u2014 nothing has happened since",
    "who": "the developer and the network company",
    "evidence": {
     "consent_date": "2022-08-05",
     "years_since_consent": 4.0
    },
    "all_matches": [
     "consented_no_activity"
    ]
   },
   "earliest": null,
   "tec": null
  },
  {
   "site_name": "Computacenter Warehouse",
   "repd_ref_id": 7290,
   "technology": "Solar Photovoltaics",
   "capacity_mw": 2.0,
   "homes_equivalent": 700,
   "status": "Under Construction",
   "consented": "2019-03-08",
   "refused": null,
   "planning_authority": "Welwyn Hatfield",
   "planning_ref": "6/2019/0141/MAJ",
   "operator": "Computacenter UK",
   "address": "Computer centre UK Ltd, Hatfield Avenue, Hatfield, Hertfordshire",
   "reason": {
    "reason": "building",
    "label": "Under construction",
    "who": "the developer",
    "evidence": {},
    "all_matches": [
     "building"
    ]
   },
   "earliest": "2027 (in construction)",
   "tec": null
  },
  {
   "site_name": "Stanborough, Hatfield - Battery Energy Storage System",
   "repd_ref_id": 14877,
   "technology": "Battery",
   "capacity_mw": 1.5,
   "homes_equivalent": null,
   "status": "Awaiting Construction",
   "consented": "2024-09-16",
   "refused": null,
   "planning_authority": "Welwyn Hatfield",
   "planning_ref": "6/2023/1802/MAJ",
   "operator": "J Reddington Limited",
   "address": "Land East of A6129 Stanborough Hatfield",
   "reason": {
    "reason": "consented_no_activity",
    "label": "Approved a year ago \u2014 nothing has happened since",
    "who": "the developer and the network company",
    "evidence": {
     "consent_date": "2024-09-16",
     "years_since_consent": 1.9
    },
    "all_matches": [
     "consented_no_activity"
    ]
   },
   "earliest": null,
   "tec": null
  },
  {
   "site_name": "Gypsy Moth Avenue - Solar Array",
   "repd_ref_id": 10943,
   "technology": "Solar Photovoltaics",
   "capacity_mw": 1.2,
   "homes_equivalent": 400,
   "status": "Awaiting Construction",
   "consented": "2022-08-25",
   "refused": null,
   "planning_authority": "Welwyn Hatfield",
   "planning_ref": "6/2021/3401/MAJ",
   "operator": "Aberdeen Standard Investment",
   "address": "Ocado Ltd Gypsy Moth Avenue",
   "reason": {
    "reason": "consented_no_activity",
    "label": "Approved 4 years ago \u2014 nothing has happened since",
    "who": "the developer and the network company",
    "evidence": {
     "consent_date": "2022-08-25",
     "years_since_consent": 3.9
    },
    "all_matches": [
     "consented_no_activity"
    ]
   },
   "earliest": null,
   "tec": null
  }
 ],
 "projects_withheld_unreferenced": 0,
 "neighbours": [
  "E14001284",
  "E14001507",
  "E14001268",
  "E14001289",
  "E14001516",
  "E14001393"
 ],
 "flags": [
  "curtailment_not_visible"
 ],
 "windows": {
  "curtailment": [
   "2025-08-01",
   "2026-07-31"
  ],
  "repd_as_of": "2026-08-03"
 }
}