Photovoltaic Expansion in 2026: What the Numbers Mean for Investors and Businesses
Excerpt
By the end of January 2026, Germany had already installed 119.55 GW of photovoltaic capacity—yet the start of 2026, with 1,012 MW added in January, was the weakest in four years. While the residential PV market is experiencing a structural decline, ground-mounted systems and large-scale projects are dominating new installations, accounting for ~60% of the total market. For investors and companies, the market analysis shows: 2026 is the last year with 20-year fixed EEG feed-in tariffs before the planned transition to the CfD system in 2027—and the upfront costs for new PV systems are historically low.
This article analyzes the expansion of photovoltaic capacity in Germany for the year 2026 and explains what the current figures mean for investors and companies. It is intended for decision-makers who want to understand the market and assess the opportunities and risks for their own projects. The analysis is based on current data from the Federal Network Agency, BSW-Solar, and Fraunhofer ISE, as well as on regulatory developments through March 2026.
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By the end of 2025, Germany had installed approximately 117 GW of photovoltaic capacity, and by the end of January 2026, this figure had already reached 119.55 GW—making solar energy the second-largest source of electricity after wind for the first time. The start of 2026 was the weakest in four years, with 1,012 MW added in January, and February saw even less net growth at 808.9 MW. Nevertheless, the structural shift in the market is clear—ground-mounted systems, at ~8.2 GW, surpassed all rooftop systems combined in 2025, while the private PV market slumped by 25%. For businesses, a clear economic opportunity is opening up due to the significant self-consumption advantage—and for investors, 2026 marks the final window to secure the 20-year EEG feed-in tariff guarantee before the planned CfD system transition in 2027.
Table of Contents
Residential Solar Market: Structural Decline Across All Segments
Commercial rooftop solar systems: 80% of the potential remains untapped
Ground-mounted systems: The largest segment for the first time
Sector coupling: E-mobility, heating, and energy storage as drivers of growth
Solar Power as an Investment: What This Means in Practice for 2026
1. Start of 2026: A record-breaking start, but momentum is slowing
At the start of 2026, Germany reached a cumulative photovoltaic capacity of 119.55 GW —as measured at the end of January 2026—up from a total capacity of approximately 117 GW at the end of 2025. However, the monthly data paint a sobering picture: With 1,012 MW in January 2026, the weakest start to the year in four years was recorded, and February saw even less net expansion at 808.9 MW. By comparison, the figure was still 1,562 MW in November 2025.
In 2025, solar power generated more electricity than lignite for the first time and became the second-largest source in Germany’s electricity mix—a milestone we detailed in our article on PV and lignite in 2025.
The term " photovoltaic expansion" refers to the annual increase in installed capacity of PV systems in Germany. This expansion includes residential rooftop systems, large-scale commercial systems, and ground-mounted projects. The total expansion is made up of growth across all market segments—although market shares have recently shifted significantly in favor of large-scale systems and ground-mounted projects.
Photovoltaic Systems in Germany: Key Data for 2025/2026
Cumulative photovoltaic capacity as of the end of January 2026: 119.55 GW (Market Master Data Register / BNetzA)
Net photovoltaic capacity additions in 2025: ~16.6 GW (BSW-Solar / Fraunhofer ISE)
New capacity additions in 2024, for comparison: 16.2–17.7 GW – stagnation, no growth
Solar Power Generation / Solar Electricity 2025: ~87–91 TWh (+17–21% compared to 2024)
Share of solar energy in gross electricity consumption: ~18%
New solar power systems in 2025 (total installations): ~869,000 (down from over 1 million the previous year)
Number of solar power systems in Germany at the start of 2025: over 4.2 million (+24% compared to the previous year)
Net capacity additions in January 2026: 1,012 MW – the weakest start to the year in four years
Net capacity additions in February 2026: 808.9 MW
Net capacity additions in November 2025, for comparison: 1,562 MW
Expansion of Photovoltaics: Where Germany Stands on Its EEG Target
The Renewable Energy Act (EEG 2023) sets an annual target of 22 GW for 2026 and a total target of 215 GW by 2030. These figures highlight the gap:
Cumulative capacity as of the end of January 2026: 119.55 GW
Capacity required by the end of 2026 (for the target pathway): at least 128 GW
Monthly capacity expansion required to meet the 215-GW target: 1,634 MW per month
Actual capacity additions in January 2026: 1,012 MW — 38% below the monthly target
Actual capacity additions in February 2026: 808.9 MW — 51% below the monthly target
What this means for investors and companies: The fundamentals remain stable—the systemic pressure for further expansion remains intact, both politically and economically. Anyone who invests today or builds their own facility is following the market, not bucking the trend.
2. Residential PV Market: Structural Decline Across All Segments
The decline in the residential rooftop solar market is not a short-term slump—it is the result of structural changes that are clearly evident in the analysis of 2025 construction data and will continue into 2026.
Residential Solar Installation: Figures and Data for 2025
New private rooftop installations ≤30 kWp in 2025: ~5.15 GW (−25% in capacity, −29% in number of installations)
Feed-in tariff for 2026: 7.78 cents/kWh (partial feed-in ≤10 kWp, effective February 2026) – will continue to decrease every six months
VAT Exemption: The purchase and installation of PV systems will remain exempt from VAT in 2026 (0% VAT)
Balcony power plants / plug-in solar devices by the end of 2025: ~1.2 million registered (+52% compared to 2024)
New installations of balcony power plants in 2025: ~430,000 units – virtually the same as the previous year
The BSW Solar Association reported a 28% year-over-year decline in the residential segment—and, along with 12 other solar industry associations, is warning of further deterioration due to planned cuts in subsidies. The causes are multifaceted: saturation effects in single-family housing developments, reduced feed-in tariffs, higher financing costs, and political uncertainty regarding the future of subsidies.
The photovoltaic market is undergoing a structural shift. While the residential segment is shrinking, the share of large-scale systems exceeding 1 MWp is growing steadily. Commercial rooftop systems, ground-mounted systems, and agri-PV are the segments where professional project developers consistently make a difference.
3. Commercial rooftop systems: 80% of the potential remains untapped
The commercial rooftop segment—known as the Small Commercial Segment (100–750 kWp)—is the most underestimated segment of the German photovoltaic market, despite its enormous potential. This is not due to a lack of economic viability, but rather to structural barriers that can be overcome.
Solar Power Systems on Commercial and Industrial Roofs: Potential in Numbers
Commercial PV installations: New capacity in 2025 (>30 kWp): ~3.7 GW (a 5% decrease compared to 2024)
Theoretical potential on industrial and logistics rooftops in Germany: ~36–37 GW (362 million m² of roof area, Garbe / pv magazine, Jan. 2024)
Percentage of industrial buildings without photovoltaic systems: ~80% (Fraunhofer IIS, March 2025)
New commercial roof space added annually: 5–6 million m²
Solar requirements are already in place in 9 states, including Baden-Württemberg, Bavaria, and North Rhine-Westphalia—for new construction and renovations
Baden-Württemberg: Mandatory Solar Installation and Current Status
Baden-Württemberg is one of the German states with the most ambitious solar energy targets. The state’s installed PV capacity currently stands at 8.3 GW —well below the level climate experts estimate is needed to achieve a climate-neutral electricity supply for the state. At the same time, a solar mandate has been in effect in Baden-Württemberg since 2022 for new buildings and since 2023 for major roof renovations—including commercial buildings. For companies with operations in Baden-Württemberg, the question of installing their own PV system is therefore no longer optional.
Why cost-effectiveness is so important for businesses
The key factor is not the feed-in tariff, but the self-consumption rate. Commercial solar systems achieve a self-consumption rate of 70–90% without storage (depending on the load profile). Industrial electricity will cost between 25 and 35 cents/kWh in 2026. PV electricity from rooftop systems costs 5.7–12.0 cents/kWh (Fraunhofer ISE LCOE study, 2024). The spread—that is, the direct savings—amounts to 15–25 cents/kWh per kilowatt-hour consumed on-site.
Key financial performance metrics for commercial PV systems:
Capital costs for commercial rooftops: €800–1,300/kWp (net, including installation) — Fraunhofer ISE / BSW Solar, Q1 2026
LCOE for utility-scale PV: 6.0–14.0 ct/kWh (Fraunhofer ISE)
Commercial electricity prices in Germany in 2026: 25–35 cents/kWh
Self-consumption rate without battery storage: 70–90%
Typical payback period: 5–8 years
KfW Loan 270: starting at 3.27% effective annual interest rate, up to 100% financing available
VAT: 0% on purchase and installation (VAT exemption)
Tax Incentives for Business Owners
Unlike private solar installations, businesses have access to a wide range of tax incentives:
Investment Tax Credit (IAB): Up to 50% of the planned investment can be deducted from taxes in advance (Section 7g of the Income Tax Act, profit threshold of €200,000)
Declining balance depreciation: 15% per year on the PV system, 30% per year on battery storage (valid until December 31, 2027)
Special depreciation: up to 40% in the first five years (Section 7g(5) of the Income Tax Act, effective 2024)
Combined effect in the first year: up to 62–70% of the investment costs are tax-deductible
We have summarized detailed information on tax options in the article " Photovoltaics and Tax Savings."
Barriers – and how to overcome them
Three structural barriers are holding back the segment—all of which have technical or regulatory solutions:
1. Structural engineering: PV systems have a dead load of approximately 30 kg/m² —many existing roofs are not designed to support this load across their entire surface. Specially developed support structures that place loads only on structurally sound points and bridge gaps make even such roofs suitable for use. Glass-glass modules based on the newer TOPCon technology, which are increasingly replacing older PERC cells, deliver higher power density at comparable weight.
2. Tenant-Landlord Dilemma: Landlords invest, tenants save on electricity. Contract models that include electricity supply agreements offer benefits to both parties—Solar Package I (Community Building Supply, Section 42b of the Energy Industry Act) has further simplified this process.
3. Grid connection: Wait times for grid operators, varying connection requirements depending on the state. Submitting your application early is crucial. For more information on the current grid connection rules, see our article on the 2026 KraftNAV amendment.
Planning note: An expansion of an existing PV system within 12 months of its initial commissioning is generally treated as a single system for tax and regulatory purposes—this is relevant for phased implementation and expansion plans.
4. Ground-mounted systems: The largest segment for the first time
By 2025, ground-mounted systems had become the dominant segment of new installations in the German photovoltaic market—a historic turning point. As early as 2024, commercial systems and ground-mounted projects exceeding 1 MWp accounted for approximately 60% of total new installations.
The Photovoltaic Market in 2025: Figures and Trends in Ground-Mounted Systems
New ground-mounted solar capacity in 2025: ~8.2 GW (+25% compared to the previous year)
Largest single segment for the first time – surpassing all rooftop systems combined
Large-scale plants (>1 MWp) as a percentage of total new capacity added in 2024: ~60%
Strongest growth by state: Brandenburg (+70%), Mecklenburg-Western Pomerania (+259%), Saxony-Anhalt (+144%)
Bavaria: Still leading in total installed capacity (rooftop + ground-mounted: ~4,537 MW)
Share of unsubsidized ground-mounted solar power plants (PPA-based): ~24% of total capacity in 2024 (ZSW study)
EEG tenders: Oversubscribed and affordable
Data from the 2025 EEG tenders show that demand for subsidized ground-mounted solar installations far exceeds the available quota.
December 2025, Segment 1 (open space >750 kWp): 2,328 MW put out to tender, 5,247 MW submitted → 225% oversubscribed (Federal Network Agency)
2025 surcharge rates: 4.66–5.00 ct/kWh – well below the maximum rate of 6.80 ct/kWh
Maximum feed-in tariff for rooftop PV systems in 2026: reduced to 10.00 ct/kWh (Federal Network Agency, Dec. 2025)
Returns and Investment Costs
The low purchase prices for solar modules from China—currently €0.09–0.15 per watt on the European spot market—are driving system costs down to historic lows:
Capital costs for large ground-mounted solar power plants (>10 MWp): €600–1 ,000/kWp (Fraunhofer ISE / BSW Solar, Q1 2026)
Capital costs for medium-sized projects (1–10 MWp): €700–1 ,100/kWp (Fraunhofer ISE / BSW Solar, Q1 2026)
Turnkey system price benchmark: ~ €1,015/kWp (Fraunhofer ISE, as of July 2024; confirmed by gruenes.haus in March 2026)
European spot market module prices in 2026: ~ €0.09–0.15/Wp
LCOE for ground-mounted systems: 4 .1 –6.9 ct/kWh (Fraunhofer ISE, Aug. 2024)
Typical IRR with EEG funding: 5–8% per annum
IRR uplift with integrated battery storage (co-location): up to +29% (White Paper by 8Energies/Enspired/Goldbeck Solar, Feb. 2026)
Our article on the direct marketing of PV electricity in 2026 explains in detail how direct marketing and storage arbitrage affect the revenue structure.
The critical bottleneck: grid connection
Despite attractive economic viability, grid connection remains the greatest risk for ground-mounted projects. BSW-Solar (Oct. 2025) found an average wait time of four months just to be assigned a connection point—and in extreme cases, years. In Bavaria, 25 GW of renewable energy grid connection applications are currently in the queue (Bavarian State Ministry of Economic Affairs, 2025). Delivery times for substations can be up to two years.
5. Agri-PV: Huge potential, regulatory hurdles
Agri-PV—the simultaneous use of land for agriculture and solar power generation—is the segment with the greatest long-term growth potential in Germany’s expansion of photovoltaic capacity. However, it is also the segment that is currently being held back by a legal impasse at the EU level.
What the data on agri-PV shows
Theoretical potential for agri-PV in Germany: 500 GW (Fraunhofer ISE, July 2025)
Total technical potential: up to 7,907 GW
Germany's Largest Agri-PV Project: Tützpatz, Mecklenburg-Western Pomerania, 76 MWp (Vattenfall, PPA with Deutsche Telekom)
Planned major project: Steinhöfel Solar Park, Brandenburg, 753 MW across 500 hectares (SunFarming, scheduled to come online in mid-2026)
EEG Feed-in Tariff Bonus (currently active): +0.5 ct/kWh pursuant to Section 38b(1) of the EEG 2023 (as amended on May 15, 2024)
Planned Solar Package I Bonus (not yet in effect): +2.5 ct/kWh (pending EU approval)
The regulatory brake
Since July 2023, agri-PV has been eligible for a special provision under the German Building Code (BauGB) (Section 35(1)(9) BauGB): Solar installations of up to 2.5 hectares (~1 MWp) can be approved without a zoning plan. Solar Package I also provides for a technology bonus of +2.5 ct/kWh for elevated or vertically oriented agri-PV systems. However, EU approval under state aid law has been pending for nearly two years (as of March 2026).
With investment costs ranging from €900 to €1,700 per kWp for agri-PV (mounted on structures) compared to €600 to €1,000 per kWp for standard ground-mounted systems (both: Fraunhofer ISE / BSW Solar, Q1 2026), agri-PV does not make economic sense in many cases without the full bonus.
Learn more about agri-PV at Logic Energy and what to consider when planning a project.
6. Sector coupling: E-mobility, heating, and the energy storage market as growth drivers
Sector coupling—the integration of photovoltaics with e-mobility, heating, and battery storage—is fundamentally changing the role of PV systems. By 2026, solar power will no longer be merely electricity for household outlets, but will serve as the foundation for heating, mobility, and grid services. At the same time, increased self-consumption through sector coupling enhances the economic efficiency of every system.
E-mobility as a catalyst for solar power
Around 40% of new PV systems will be installed alongside an electric vehicle or charging infrastructure by 2025 (BSW-Solar). E-mobility has thus become the most important factor driving PV expansions and new installations in the commercial sector. Since the 2025 amendment to the Energy Industry Act (EnWG), bidirectional charging (V2G/V2H) has become more economically attractive: double grid fees for feeding power back from the vehicle into the grid have been abolished. The electric car thus becomes a flexible storage solution—without the need for additional investment in stationary battery storage.
Electric Cars and Solar Power Systems: Incentives, Benefits, and the Current Legal Framework
The combination of an electric car and a solar power system has become more attractive than ever since the 2025 amendment to the Energy Industry Act (EnWG). Although there are currently no direct government subsidies for purchasing electric cars in Germany—the environmental bonus expired in 2023—the economic benefit comes from how the system is used: Those who charge their electric vehicle during the day using their own solar power reduce the effective charging costs to 5–12 ct/kWh (self-consumption costs of the PV system) instead of 35–45 ct/kWh from the grid. This corresponds to annual savings of several hundred euros per vehicle. For companies with a fleet, this effect can be multiplied at the fleet level.
Heating: Heat Pumps Meet Affordable Solar Panels
The combination of PV and heat pumps is becoming increasingly common. Heat pumps cover a large portion of their energy needs with self-generated solar power—this reduces annual electricity consumption from the grid and significantly improves the system’s self-consumption rate. For businesses with heating loads, this effect directly contributes to lowering energy costs. As a general rule, higher electricity consumption—whether from heat pumps, charging infrastructure, or production processes—increases the economic efficiency of the PV system, because greater self-consumption means more avoided grid electricity costs.
The Storage Market in Germany in 2025/2026
The battery storage market has grown exponentially in just a few years. The market is increasingly shifting from residential home storage systems to larger, project-driven installations:
Cumulative battery storage capacity in Germany by the end of 2025: >25 GWh (BSW-Solar / Fraunhofer ISE)
Home storage systems installed by the end of 2025: ~2.2 million units
Storage prices in 2026: €400–800/kWh (a 60% decrease since 2013)
Percentage of new residential solar power systems with battery storage: ~80%
Large-scale storage (>1 MWh) additions in 2025: +60% compared to the previous year (Market Master Data Register)
Battery storage systems are significantly changing the profitability dynamics of PV projects. Our article on PV storage in 2026 explains how co-location of photovoltaic systems and storage works in a commercial context.
7. PV as an Investment: What This Means in Practice for 2026
Three factors make 2026 the most strategically important year for PV investments in Germany—regardless of whether you are an investor or a business.
Factor 1: Historically low entry costs due to the China effect
The low prices of solar modules from China—currently €0.09–0.15/Wp on the European spot market—have a positive impact on all investment calculations. System costs for ground-mounted installations (>10 MWp) range from €600–1,000/kWp (Fraunhofer ISE / BSW Solar, Q1 2026); two years ago, they were still €1,100–1,400/kWp. For the same investment amount, a significantly larger PV system can now be built, yielding correspondingly higher returns. Solar systems that are ready for construction, with secured grid connection and feed-in tariffs, are therefore more attractive now than they were in 2022 or 2023.
Factor 2: The time window before the CfD system transition
The proposed EEG 2027 calls for the introduction of a two-way contract for difference (CfD) for new installations of 100 kWp or more. Operators receive the market premium during low-price periods—but must repay the difference during high-price periods. Photovoltaic systems that go into operation in 2026 will still secure 20 years of guaranteed EEG remuneration without any repayment obligation.
Our article on the 2027 CfD requirement for PV investors explains exactly what this regulatory change means and how to prepare for it in 2026.
Factor 3: Negative electricity prices as a risk—and as an opportunity for revenue with storage
573 hours of negative electricity prices in 2025 – a new record (CHP Info Center/energiezukunft.eu). This poses a revenue risk for unsecured systems: The Solar Peak Act (effective Feb. 2025) mandates zero compensation for negative prices starting at 2 kWp. For solar systems with integrated battery storage, the logic is reversed: batteries charge for free during hours with negative prices and discharge during expensive peak load periods.
Key investment metrics:
PV Return on Direct Investment (Commercial): 6–10% per annum (Helm Group, 2024 portfolio data)
IRR uplift with co-located battery storage: up to +29% (White Paper by 8Energies/Enspired/Goldbeck Solar, Feb. 2026)
Typical return on equity for ground-mounted solar projects under the EEG: 5–8% per year
The article "How the Logic Energy Investor Model Works" explains exactly how the Logic Energy investor model works—with profit sharing over 20–40 years and fixed financing.
8. Regulatory Environment: The Window Is Closing
The regulatory year 2026 is marked by a key date: The working draft of the Renewable Energy Act 2027 (EEG 2027, leaked in February 2026) provides for the complete elimination of the fixed feed-in tariff for new installations under 25 kWp as of January 1, 2027. At the same time, PV systems of 100 kW or more are to be transferred to the CfD system.
Renewable Energy: Current Regulatory Requirements
Solar Package I (effective May 2024): Limit on balcony power plants set at 800 W, shared building power supply (§42b EnWG), direct marketing requirement for systems of 25 kWp or more
Solar Peak Law (effective Feb. 2025): Zero compensation for negative prices for systems 2 kWp and above; new systems 7 kWp and above require smart meters and control boxes
Declining balance depreciation (effective July 2025, valid through December 31, 2027): 15% per year for PV systems / 30% per year for battery storage systems
VAT exemption (effective since January 2023, valid through 2026): 0% VAT on the purchase and installation of PV systems
What's left to do
EEG 2027: Cabinet decision pending (as of March 2026); entry into force on January 1, 2027 is considered ambitious
EU State Aid Approval for Solar Package I: Increased feed-in tariff for commercial systems (+1.5 ct/kWh for systems of 40 kWp or more) and agri-PV bonus (+2.5 ct/kWh) still pending
Grid Fee Reform (AgNes): Structural measures for prosumers to take effect no earlier than 2027
For investors and companies, the following applies: Those who commission a facility in 2026 will be operating within the currently known regulatory framework. The regulatory landscape for 2027 is more uncertain than in previous years. That’s no reason to panic—but it is a good reason to act in 2026 rather than wait.
This article is intended solely for general informational purposes and does not constitute investment, tax, or legal advice. Return figures are based on historical data from the Helm Group and are not a guarantee of future results. For advice tailored to your individual situation, please consult a licensed advisor. All information is provided without warranty. As of March 2026.
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By 2026, the German photovoltaic market will no longer be a uniformly growing market—it will be a market in flux. A look at the installation data reveals that residential rooftop systems are losing ground, while large-scale systems and ground-mounted projects are gaining ground. The storage market is growing faster than the system market. Sector coupling with e-mobility and heating is changing how investors and companies think about PV investments. Logic Energy designs and builds photovoltaic systems for investors and companies—from site acquisition to long-term system operation. Contact us before the regulatory window closes.
FAQ
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Net capacity additions in 2025 totaled approximately 16.6 GW; by the end of 2025, cumulative installed capacity stood at about 117 GW. By the end of January 2026, Germany had already reached 119.55 GW. The EEG annual target of 22 GW was thus significantly missed—to reach the 215-GW target by 2030, 1,634 MW per month is required.
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January 2026 saw the weakest start to the year in four years, with 1,012 MW. In February 2026, net capacity additions fell further to 808.9 MW—both months are more than 38% and 51% below the monthly target of 1,634 MW required to meet the 215-GW goal.
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Ground-mounted systems (PV expansion ~8.2 GW, up 25% from the previous year) surpassed the total capacity of all rooftop systems for the first time in 2025. Large-scale systems over 1 MWp already accounted for around 60% of total expansion in 2024. In contrast, the residential sector saw a 25% decline.
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Yes—the benefit of self-consumption (commercial electricity rates of 25–35 cents/kWh, PV generation costs of 5.7–12 cents/kWh) is at a historic high. Payback periods of 5–8 years are realistic. In addition, there are tax incentives (IAB, declining balance depreciation) and a VAT exemption (0% VAT) on purchase and installation.
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CfD (Contract for Difference) is a new support model scheduled to take effect in 2027, under which operators must repay revenues to the EEG account during periods of high electricity prices. Solar power plants that go into operation in 2026 will still be eligible for the current terms for 20 years without any repayment obligation.
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Electric mobility, heat pumps, and battery storage increase the self-consumption rate and thus the system’s cost-effectiveness. By 2025, approximately 40% of new PV systems will be installed alongside an electric vehicle or charging infrastructure. Higher self-consumption means lower costs for purchasing grid electricity—the more electricity that is consumed on-site, the faster the system pays for itself.
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IAB (50% deductible upfront), declining balance depreciation (15% for PV / 30% for storage, valid until the end of 2027), and special depreciation (40% over the first five years) can be combined. This allows up to 62–70% of the investment costs to be claimed as a tax deduction in the first year. In addition, there is a VAT exemption on purchase and installation.
References
Federal Network Agency – Expansion of Renewable Energies 2025 – Initial Estimate of PV Expansion, January 8, 2026
Federal Network Agency / Market Master Data Register – Monthly Net Addition Data: January 2026 1,012 MW, February 2026 808.9 MW, November 2025 1,562 MW; cumulative capacity as of the end of January 2026: 119.55 GW
BSW-Solar / pv magazine – More new ground-mounted photovoltaic systems and fewer rooftop systems by 2025 – Market breakdown, January 5, 2026
Destatis / Federal Statistical Office – 4.8 million photovoltaic systems installed by the end of 2025 – March 2026
Fraunhofer ISE – Current Facts About Photovoltaics in Germany – Generation Data, Installation Figures, Updated Regularly
pv magazine – BSW-Solar: 28 Percent Decline in the Residential Segment – December 8, 2025
German Solar Industry Association – 1 Million Plug-in Solar Devices in Use – June 11, 2025
pv magazine – Commercial roofs offer 37 gigawatts of photovoltaic potential – Garbe study, January 10, 2024
Fraunhofer ISE – Levelized Cost of Electricity (LCOE) for Renewable Energies – Open-field sites: 4.1–6.9 ct/kWh, Study August 2024
Federal Network Agency – Solar Power Plant Tender, Segment 1: Bid Deadline December 1, 2025 – 225% oversubscribed
pv magazine – Fraunhofer ISE: Germany has the potential for 500 GW of agri-photovoltaics – July 8, 2025
CHP Information Center / energiezukunft.eu – Hours with Negative Electricity Prices in Germany in 2025: 573 hours (a record) – January 6, 2026
Solarserver – Expansion of ground-mounted photovoltaic systems in the first half of 2025 – August 28, 2025
GÖRG Attorneys at Law – Draft of the EEG 2027 – An Overview of the Initial Reform Plans – March 9, 2026
Solarserver / 8Energies / Goldbeck Solar – White Paper: Co-location with Battery Storage – IRR Uplift of up to +29%, February 23, 2026
Helm Group – Portfolio Return Data for 2024 – Internal Project Data, 6–10% p.a.
pv magazine – Federal Network Agency lowers the cap for rooftop systems to 10.00 ct/kWh for 2026 – December 16, 2025
German Solar Industry Association – Sector Integration and E-Mobility: 40% of New PV Systems to Include Charging Infrastructure – BSW-Solar Market Data 2025
Fraunhofer ISE – Current Facts on Photovoltaics in Germany (as of March 2026) — Market Figures, Annual Yield, Installed Capacity
