Germany installed over 16.4 GW DC of solar in 2025, lifting total capacity to more than 117 GW and covering about 15% of electricity demand
The market is moving from expansion-led growth to system integration, including PV with storage and shared electricity consumption models
The C&I segment is expanding quickly, and is expected to play a growing role in flexible, local energy systems, says EUPD Research
According to EUPD Research, Germany’s solar market is entering a more mature phase, marked by continued capacity growth alongside a shift in how solar power is produced, distributed, and consumed.
In 2025, the country expanded its cumulative solar capacity, adding over 16.4 GW DC to bring it over 117 GW, meeting close to 15% of the national electricity demand (see Germany’s Official Solar Additions Fall Slightly In 2025 To 16.4 GW).
On one hand, this reflects strong growth; on the other, it shows that the market is moving beyond a phase driven mainly by expansion, with structural changes becoming more prominent. It mirrors the global trend of solar markets moving from volume-driven growth to more integrated solutions such as PV-plus-storage, says EUPD Research.
“A key element of the ongoing transformation is the gradual emergence of shared and coordinated consumption models,” analysts write.
The historical model of individual self-consumption of generation and consumption tied to a single asset owner was the need of the hour in the early stages of market development. In today’s high-renewables environment, where generation and demand are not always aligned, EUPD Research says this model increasingly limits system efficiency.
Allocation of locally generated renewable electricity across multiple consumers within defined communities or grid areas represents the flexible and effective use of local energy utilization. This model will enable such allocation within the energy-sharing frameworks under the European Clean Energy Package (see Clean Energy Package Formally Cleared).
In Germany, the concept is referred to as Mieterstrom, or Tenant Electricity, which has so far been used primarily in multi-family housing. The concept is likely to be implemented more broadly across multiple participants when the country introduces regulatory provisions for energy sharing under the Energiewirtschaftsgesetz (Energy Industry Act), slated to come into force from June 2026. Its impact, however, will become clear over time.
Meanwhile, the commercial and industrial (C&I) segment is also driving market growth, outpacing other segments. In 2025, this segment accounted for 5.6 GW DC of the total installed capacity – around 1/3rd of the country’s total new PV capacity. EUPD forecasts this segment to expand by 6.2 GW DC in 2026 out of 18.3 GW DC across the utility, C&I, and residential segments.
C&I installations continue to expand as businesses seek cost savings and greater energy independence. This shift is also contributing to a more diversified market, reducing reliance on traditional residential self-consumption models. The C&I segment is now increasingly combining solar with storage and digital systems. These sites will be well-suited for energy sharing in the future.
“Industrial sites, business parks, and mixed-use developments provide suitable environments for coordinating generation and consumption across multiple actors. In such settings, locally generated electricity can be used more efficiently through aggregation and smart allocation mechanisms, paving the way for more sophisticated local energy ecosystems,” argue the analysts.
In this evolving landscape, energy suppliers are expected to take on a larger, more active role. They will not only sell electricity, but also act as coordinators of local energy systems. They can act as key enablers of regional energy-sharing ecosystems that connect C&I, distributed PV, storage systems, and end consumers.
“This reflects a broader structural shift within the German energy system. The market is gradually moving away from isolated, subsidy-driven installations toward market-based, system-integrated configurations that emphasise flexibility, coordination, and local optimization,” according to EUPD.