“show me how much solar power plants have been build in Germany between 2015 and 2025 and where they have been build”
The figures cover solar photovoltaic generating units of every size registered in Germany’s official Marktstammdatenregister — rooftop systems, plug-in balcony units and ground-mounted farms alike, not only large solar parks. All 11 requested years, 2015 through 2025, are covered: gross capacity rose from 37.8 GW and 1,518,686 units at end-2014 to 118.1 GW and 5,766,783 units at end-2025, roughly 80.3 GW and 4.25 million registered units added.
Most units are small building-mounted or plug-in systems; most capacity sits on buildings (82.9 GW) and ground-mounted land (47.7 GW). 1.55 million plug-in balcony units hold just 1.7 GW.
The Marktstammdatenregister is the authoritative source for location: every unit carries a municipality and postcode, and units above 30 kW carry exact coordinates and a full address (arxiv.org). The Solar Analytica reduction of the register breaks units and capacity down by all 16 Bundesländer (solaranalytica.com), but the numeric state totals were not extracted into this report’s data, so no state ranking is shown — the map marks coverage, not amounts.
| Year | Added GW | Cumulative GW (year-end) | Registered units (year-end) | Source |
|---|
Added GW are rounded to 0.1, so summed additions can differ slightly from endpoint subtraction. Unit counts for 2021–2024 year-ends were not in this extract.
Method: annual gross/net solar PV capacity additions for Germany, 2015–2025 (11 rows), reconstructed from the Bundesnetzagentur Marktstammdatenregister (export of 3 November 2026) as republished by contracting.green and Solar Analytica, cross-checked against Fraunhofer ISE and PV Tech; research conducted 11 November 2026. A figure measures gross capacity added (GW) or registered generating units in operation; the register rebuild can slightly understate early years because deleted units drop out. State-level numeric totals and unit coordinates were not extracted and are omitted; a 40-source inventory was reduced to method notes for space.