Guide
What you should know about solar power, batteries and the rules around them. Written by our team, with sources and a review date.
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Existing systems
Solar system over 20 years old: what to do when the feed-in tariff ends
What applies to your old solar system from year 21, what the follow-on payment brings, and when self-consumption, a battery or new panels pay off.
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Law and subsidies
EEG 2027: Germany plans to end the fixed feed-in tariff for new solar systems
What the draft law means for new solar systems, what applies to systems that start running in 2026, and where the bill stands in parliament.