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Solar, Wind, Battery Storage and Other Power Plants in Any German Municipality, District or State (Marktstammdatenregister)

Number of units and installed capacity (MW, gross and net) of solar (on buildings, ground-mounted, other), onshore and offshore wind, battery storage, biomass and hydropower in operation in any German municipality, district, federal state or Germany, plus planned units and the yearly build-out by commissioning year. Official register of the Bundesnetzagentur, updated weekly.

Call it (no API key)

GET https://api.agentdatahub.de/api/v1/call/de-renewables-area?area=Freiburg im Breisgau&compact=1

Full metadata: without compact=1 · Markdown: format=llm · Only some fields: add &fields=a,b.c · MCP: tool call_api with {"apiId":"de-renewables-area"}

Parameters

Example response (live, compact)

{
  "apiId": "de-renewables-area",
  "data_freshness": "live",
  "data": {
    "area": {
      "name": "Freiburg im Breisgau",
      "level": "municipality",
      "key": "08311000"
    },
    "register_export_date": "2026-10-29",
    "by_kind": [
      {
        "kind": "solar_building",
        "label": "Solar on buildings",
        "units_in_operation": 6698,
        "gross_capacity_mw": 107.85,
        "net_capacity_mw": 96.67,
        "planned_units": 43,
        "planned_gross_capacity_mw": 3.3
      },
      {
        "kind": "solar_ground",
        "label": "Ground-mounted solar",
        "units_in_operation": 7,
        "gross_capacity_mw": 4.77,
        "net_capacity_mw": 3.96,
        "planned_units": 18,
        "planned_gross_capacity_mw": 15.21
      },
      {
        "kind": "solar_other",
        "label": "Other solar (e.g. balcony, carport, water)",
        "units_in_operation": 3053,
        "gross_capacity_mw": 2.72,
        "net_capacity_mw": 2.04,
        "planned_units": 43,
        "planned_gross_capacity_mw": 0.04
      },
      {
        "kind": "wind_onshore",
        "label": "Wind onshore",
        "units_in_operation": 4,
        "gross_capacity_mw": 18.28,
        "net_capacity_mw": 18.28,
        "planned_units": 4,
        "planned_gross_capacity_mw": 18.01
      },
      {
        "kind": "storage",
        "label": "Battery and other electricity storage (power, not capacity)",
        "units_in_operation": 4050,
        "gross_capacity_mw": 26.34,
        "net_capacity_mw": 24.85,
        "planned_units": 21,
        "planned_gross_capacity_mw": 0.55
      },
      {
        "kind": "biomass",
        "label": "Biomass",
        "units_in_operation": 13,
        "gross_capacity_mw": 7.69,
        "net_capacity_mw": 7.51,
        "planned_units": 0,
        "planned_gross_capacity_mw": 0
      },
      {
        "kind": "hydro",
        "label": "Hydropower",
        "units_in_operation": 10,
        "gross_capacity_mw": 0.57,
        "net_capacity_mw": 0.48,
        "planned_units": 0,
        "planned_gross_capacity_mw": 0
      }
    ],
    "commissioned_per_year_still_in_operation": [
      {
        "year": 2017,
        "units": 110,
        "gross_capacity_mw": 2.89,
        "net_capacity_mw": 2.65
      },
      {
        "year": 2018,
        "units": 165,
        "gross_capacity_mw": 2.78,
        "net_capacity_mw": 2.55
      },
      {
        "year": 2019,
        "units": 231,
        "gross_capacity_mw": 4.19,
        "net_capacity_mw": 3.92
      },
      {
        "year": 2020,
        "units": 375,
        "gross_capacity_mw": 3.41,
        "net_capacity_mw": 3.25
      },
      {
        "year": 2021,
        "units": 501,
        "gross_capacity_mw": 4.86,
        "net_capacity_mw": 4.51
      },
      {
        "year": 2022,
        "units": 630,
        "gross_capacity_mw": 8.55,
        "net_capacity_mw": 7.58
      },
      {
        "year": 2023,
        "units": 2462,
        "gross_capacity_mw": 19.77,
        "net_capacity_mw": 17.91
      },
      {
        "year": 2024,
        "units": 2710,
        "gross_capacity_mw": 28.64,
        "net_capacity_mw": 26.15
      },
      {
        "year": 2025,
        "units": 2415,
        "gross_capacity_mw": 28.74,
        "net_capacity_mw": 26.67
      },
      {
        "year": 2026,
        "units": 2083,
        "gross_capacity_mw": 22.68,
        "net_capacity_mw": 20.06
      }
    ],
    "note": "Units in operation (status \"in Betrieb\"). gross_capacity_mw is the installed (for solar: module) power the Bundesnetzagentur uses in its headline figures; net_capacity_mw is the net rated power (for solar often limited by the inverter); decommissioned units are not counted, so the yearly build-out only includes units still running. Storage figures are power (MW), not energy capacity (MWh). Offshore wind has no municipality and is only included for Germany. Recent months are incomplete because operators register with a del
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