Overview

• Approximately 9% of German households currently operate balcony solar systems, with 17% planning to install one in the near future.
• Under optimal conditions, an 800-watt balcony solar system can generate around 760 kWh annually, saving €160 per year through self-consumption of 60% of the output.
• The initial cost of a balcony solar system ranges from €500 to €800, with payback periods of 2.5 to 5 years, depending on placement and usage.
• Federal and state-level subsidies, coupled with simplified regulations under the 2024 SolarPaket 1 reform, have accelerated adoption, with over 780,000 units installed by early 2025.
• Optimal energy yields are achieved with south-facing, slightly inclined installations, while north-facing setups may produce less than one-third of potential output.