Germany holds the largest cumulative solar capacity in the EU, with installed PV capacity of approximately 80.7 GWp and a market representing roughly a quarter of the entire European solar sector. Behind that scale sits an installer landscape split between fast-growing residential platforms serving hundreds of thousands of homeowners, and large-scale EPC contractors and developers managing multi-gigawatt utility and commercial portfolios. This article presents a curated Top 10 of PV Installers in Germany, selected for overall scale, company size, and significance within the German solar market.

The full research dataset, including verified contact information, LinkedIn profiles, certification status, and installed capacity figures for all 1,500+ companies, is available exclusively through the Renewables.Digital Research Platform.

Top 10 – Curated Selection

Sorted by overall company scale, based on revenue, employee count, and market presence. Founding year and installed capacity were not available in the source data for this selection. Management names and precise revenue figures are intentionally excluded from this overview.

Industry Overview: Solar PV Installation in Germany

Germany’s PV installer market is unusual in how it splits between two distinct business models operating at genuinely large scale: consumer-facing platforms that have grown explosively on the back of venture funding and residential electrification demand, and long-established EPC and project development firms measured in gigawatts of installed capacity. The companies in this curated selection represent both sides of that split.

Residential Platform Leaders

Enpal, headquartered in Berlin, has grown into Europe’s largest residential solar provider by revenue, serving households across Germany and Italy with a combined offering of solar panels, battery storage, EV charging, and heat pumps. 1KOMMA5°, based in Hamburg, has scaled just as rapidly through acquisitions and organic growth, building Europe’s largest virtual power plant for private households under its Heartbeat AI software platform.

Large-Scale EPC Contractors

Goldbeck Solar, part of the family-owned Goldbeck Group, delivers turnkey utility, industrial, and commercial rooftop solar systems across multiple countries. Greencells, based in Saarbrücken, operates as a global EPC and O&M provider for utility-scale solar parks, maintaining a lean core team supported by field technicians on active construction sites.

Established Developers and Regional Specialists

UKA Umweltgerechte Kraftanlagen is one of Germany’s leading full-service developers for wind and solar parks, with locations across the country and internationally. GP JOULE, ZOLAR, MaxSolar, ENVIRIA Energy, and Centroplan round out the list, spanning multi-technology renewable energy groups, digital-first B2C platforms, and regional EPC specialists with strong industrial and commercial client bases.

Market Outlook

With Germany’s solar capacity continuing to grow despite a more challenging residential demand environment in recent years, competition is expected to concentrate further among the largest platform players, while EPC contractors chasing utility-scale and commercial rooftop projects benefit from continued grid expansion and corporate decarbonisation demand. Consolidation, both through acquisitions by larger platforms and through restructuring among smaller regional installers, is a trend worth watching as the market matures.

This list is an excerpt from our larger database of PV installers across Europe.