Photovoltaic Calculator Germany
See if a solar PV system pays off in Germany: size, cost, region, self-consumption and feed-in tariff give yield, savings, payback and CO2 saved.
Total Cost
€14,000.00
10.0 kWp x €1,400.00
Annual Yield
10,000 kWh
Self-Consumption: 3,000 kWh |Feed-in: 7,000 kWh
Annual Savings
€1,589.00
in the first year
Payback Period
approx. 9.0 years
Profit after 20 Years
€16,314.79
Total Savings: €30,314.79
CO2 Savings (20 Years)
76.3 t
approx. 400 g/kWh electricity mix
Note: This calculation is for guidance only. Actual yields depend on roof pitch, orientation, shading, and other factors. Electricity price changes and maintenance costs are not included. Feed-in tariff according to EEG 2023 for systems up to 10 kWp.
Note: These calculations are for informational purposes only and do not replace professional tax or financial advice. All information without guarantee.
FAQ
Frequently Asked Questions
Is a solar system still worthwhile?
Yes, solar systems typically pay for themselves in 8-12 years. With current electricity prices and falling module costs, the return on investment is 5-8%. Since 2023, there is no VAT on residential systems up to 30 kWp.
How much does a photovoltaic system cost?
A typical residential system (5-10 kWp) costs 8,000-15,000 euros including installation. With a battery storage (5-10 kWh), add another 5,000-10,000 euros. Prices have fallen significantly in recent years.
How much electricity does a photovoltaic system generate in Germany?
In Germany, an optimally oriented PV system generates about 900 to 1,100 kWh per kWp of installed capacity per year, depending on location. Southern Bavaria reaches the highest values, northern Germany is somewhat lower. A typical 10 kWp home system therefore produces about 9,000 to 11,000 kWh a year; the calculator uses 900 (north), 1,000 (central) or 1,100 kWh/kWp (south) depending on the region you select.
Guide
What is the Photovoltaic Calculator Germany?
The photovoltaic calculator computes the yield, self-consumption, feed-in tariff and financial viability of a solar system for your roof.
How does the Photovoltaic Calculator Germany work?
Enter the system capacity, location and roof orientation. The calculator determines the annual yield, self-consumption share and feed-in revenue. The payback period is calculated from investment costs and annual income.
Key Data and Facts
Feed-in tariff from 01/08/2026 (partial feed-in up to 10 kWp): 7.70 ct/kWh, full feed-in 12.22 ct/kWh. System costs: 1,200-1,800 euros/kWp. VAT exemption for PV up to 30 kWp. Yield in Germany: 900-1,100 kWh/kWp.
Step-by-Step Guide
How to calculate the economic viability of a PV system step by step: 1. Determine the system size: Measure the usable roof area. About 5-7 m2 are needed per kWp. 2. Estimate the annual yield: In Germany an optimally oriented system generates about 900-1,100 kWh per kWp. Southern Germany is higher than northern Germany. Roof orientation: south is ideal, east/west about 15-20 % less. Roof pitch: 30-35 degrees is optimal. 3. Set the self-consumption share: Without storage about 25-35 %, with battery storage about 50-70 %. 4. Calculate the revenue: Self-consumption: savings = self-consumed kWh x electricity price (about EUR 0.37/kWh). Feed-in: payment = fed-in kWh x feed-in tariff (7.70 ct/kWh for partial feed-in up to 10 kWp, commissioning from 01/08/2026; the rate is then fixed for 20 years plus the year of commissioning). 5. Calculate the costs: Investment about EUR 1,200-1,800 per kWp. Since 2023 there has been no VAT on PV systems up to 30 kWp. Operating costs about 1-2 % of the investment per year. 6. Amortisation: typically 9-14 years.
Calculation Example
10 kWp system near Munich, south-facing: annual yield about 10,500 kWh. Self-consumption 30 % (3,150 kWh x EUR 0.37 = EUR 1,166). Feed-in 70 % (7,350 kWh x EUR 0.0770 = EUR 566). Annual return: EUR 1,732. Investment: EUR 15,000. Payback: about 8.7 years.
Sources
Official sources
Calculations are based on applicable German laws and official data:
- Bundesministerium für Wirtschaft und Klimaschutz
- Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA)
Full methodology at Methodology.
Reviewed by Konstantin Iakovlev · Last updated:
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