Quick & simple: You become a PV investor by investing €100,000 or more in photovoltaics—either as a direct investment through a profit-sharing arrangement involving one or more inverters in a PV system, or optionally as an entire system. Base return: 6–10% per annum, with tax benefits under Section 7g of the German Income Tax Act (EStG) increasing this to up to 10–12%. The contractual partner is the personally liable mediplan Helm e.K. (Helm Group, portfolio data 2024).
This guide is intended for entrepreneurs, private investors, and companies looking to invest in photovoltaics in 2026. It provides a step-by-step explanation of how PV investments work and why they can help diversify portfolios and generate predictable, asset-backed returns.
How can you become a PV investor with Logic Energy in 2026?
Photovoltaic investments as direct investments rather than through intermediate fund structures—with a personally liable contractual partner and predictable cash flow over 20 to 40 years.
Annual return (using §7g tax incentives)
Term, including renewal option
Owner Liability — mediplan Helm e.K.
What does “becoming a solar investor” mean?
A PV investor makes a long-term investment in a photovoltaic system and receives the revenue generated from the solar power produced. Such photovoltaic investments range from individual rooftop solar systems to large solar parks. At Logic Energy, direct photovoltaic investment takes the form of an inverter revenue share or the purchase of entire solar systems—directly with mediplan Helm e.K., without an intermediary issuer and without a prospectus requirement under the German Investment Act (VermAnlG). This guide explains suitability, the process, returns, taxes, and risks.
Feed-in tariff: a government-guaranteed payment for solar power fed into the grid, fixed for 20 years.
Direct marketing: Sale of solar power on the spot market plus a market premium; legally required for systems of 100 kWp or more.
Inverter Revenue Sharing: A scheme in which investors share in the revenue generated by one or more inverters in a photovoltaic system, without an intermediate fund layer.
kWp (kilowatt-peak): A measure of the installed capacity of a PV system under standard test conditions.
How a solar power system operates efficiently
Photovoltaics convert sunlight directly into electricity—a proven, long-lasting source of energy. In typical locations, a PV system generates approximately 900–1,100 kWh per kWp per year (Fraunhofer ISE 2024). The solar power generated is sold through the EEG feed-in tariff or direct marketing—both ensure predictable revenue for 20 years; PPAs and battery storage further stabilize the yield profile. The Helm Group has been supporting investors for over 40 years—from site acquisition and grid connection to the operation of photovoltaic systems.
Photovoltaics and Renewable Energy in Germany in 2026
EEG Cap for Open-Space Projects, Bidding Date: March 1, 2026 (BNetzA)
Solar Power in 2025 — About One-Fifth of Germany's Net Electricity Generation (BSW-Solar, Aug. 20, 2026)
End of EEG subsidy approval — CfD requirement effective July 17, 2027
In Germany, photovoltaics is the cornerstone of the energy transition—the trend toward and demand for solar energy continue to rise, driven in part by mandatory solar requirements in many federal states. Those who secure a contract before the reform takes effect in 2026 will be granted grandfathering status. Learn more in our overview of the CfD requirement starting in 2027.
Who are photovoltaic investments suitable for?
Anyone looking to invest in photovoltaics will find three target groups here: entrepreneurs with annual profits under €200,000, high-net-worth individual investors interested in a tangible investment, and companies and corporations with excess liquidity. Each group benefits from its own tax advantages and diversification opportunities. The minimum investment is €100,000 in equity.
Three target groups — and when a different approach is better
Unternehmer < 200.000 €
- Doctors, lawyers, engineers, sole proprietors
- IAB and special depreciation under Section 7g of the Income Tax Act can be combined
- Save up to €32,550 on a €100,000 investment
Private investors
- 20–40 years of cash flow backed by physical collateral
- Real assets act as a buffer against inflation (electricity price indexation)
- Direct ownership is an option instead of fund shares
Small and Medium-Sized Businesses & Holding Companies
- Allocate liquidity to secured cash flows
- Straight-line depreciation at 5% over 20 years
- Predictable return over the term
Probably not suitable
- Investment horizon of less than 5 years
- High short-term liquidity needs
- No willingness to hold a referendum on taxes
What is the 6-step process for investing in solar power?
It takes about 6 to 12 months from the initial contact to generating cash flow. As a full-service partner, Logic Energy handles every step of the PV project—from site analysis to commissioning. All you need to do is sign the contract and the easement agreement, and you’ll receive monthly revenue reports starting from the date of commissioning.
From the initial inquiry to the monthly performance report
Initial consultation
Profile & Goal · 1–2 weeks
Project Proposal
Location & Yield · 2–4 weeks
Placement
Co-investors · Weeks–Months
Notary Public & NAZ
Contract & Network Connection · 4–6 weeks
Construction & Commissioning
Logic Glas GmbH · 3–5 months
Operations & Reports
O&M + Performance Reports · 20–40 years
Source: Helm Group, average of PV projects for 2023–2024. Detailed process: How the investor model works.
How much does a solar power system cost, and what kind of return on investment can you realistically expect?
Investment is possible with a minimum equity investment of €100,000. Returns range from 6–12% per annum: 6–10% as a baseline excluding tax effects, and up to 10–12% when fully utilizing the tax benefits under Section 7g of the German Income Tax Act (EStG). The return is primarily determined by the installed PV capacity, the location, and the investment volume. All figures for such a PV investment are net values after costs, before income tax (Helm Group, portfolio data 2024). The payback period is approximately 9–13 years, depending on the system type, location, and self-consumption.
Photovoltaics as an Investment: A Comparison of Returns
Capital costs per kWp — the 2026 benchmark
Market orientation: For large-scale installations, acquisition costs should be below ~€2,000/kWp (without storage) or ~€2,700/kWp (with storage)—depending on capacity, PV modules, and location. One-time costs for notary and land registry fees: 1–2%; lease, O&M, and insurance are already included in the price. Module and acquisition costs have fallen significantly in recent years, improving the economic viability of new projects.
Open space is cheaper, but rooftops are often more cost-effective
Ground-mounted systems are generally less expensive per kWp (standardized mounting structure, no structural analysis required), but they involve longer permitting processes, lease costs, and, in the first feed-in tariff band, a lower EEG rate (5.79 ct/kWh compared to up to 10.00 ct/kWh for rooftop systems over 1 MWp). As a result, rooftop systems often pay for themselves more quickly over their lifetime.
Typical project sizes
From shares in inverters at a 750-kWp commercial rooftop system (below the tender threshold) to solar farms with a ground-mounted capacity of 1–5 MWp. Many investors combine shares in multiple systems to create a geographically diversified portfolio. Technical details: Ground-mounted solar farm.
Why quality comes at a price
At first glance, Logic Energy projects appear more expensive than offers from pure project developers or crowd-investing platforms. The reason: everything from a single source—site acquisition, permitting, grid connection, general contractor construction (Logic Glas GmbH), O&M, and commercial processing. Added to this are N-type modules, a proprietary roof bridging system for industrial roofs, photovoltaic insurance, and a fixed construction price with no risk of cost overruns. This level of integration costs more, but reduces the risk of failure over 20 to 40 years and makes the return calculable over the entire lifecycle.
