# German solar market expansion > Live situation record from CLSTR: https://clstr.news/situations/german-solar-market-expansion > Updated: 2026-07-31T04:04:37.000Z. Sources: 23. Developments: 2. In late June 2026, solar developer Enpal announced a push to grow commercial and industrial (C&I) solar installations in Germany, highlighting ongoing debates over cost‑model structures for projects. A month later, German roofing‑accessory firm Fleck launched new photovoltaic‑mounting products designed for fast, norm‑compliant roof installations, while startup Sonnify introduced an online portal that lets homeowners obtain multiple solar quotes and offers a digital workflow for installers. Both initiatives aim to support the rapid growth of Germany’s rooftop solar sector, projected to reach around 4.2 million systems by 2025. On 31 July 2026, experts warned that German PV systems must automatically disconnect during public‑grid failures, a safety requirement to protect utility workers. To retain any emergency supply, homeowners need hybrid inverters paired with battery storage. These units can keep essential loads such as refrigerators running, though high‑consumption devices like electric‑car chargers are generally unsupported during outages. Initiative Elektro+ specialist Thomas Heberlein emphasized careful planning of which appliances are covered and noted that newer hybrid inverters already incorporate the required backup functionality. Recent outages in Berlin and Reutlingen underscored the misconception that a rooftop PV system will keep a home powered when the grid fails. Heberlein reiterated that only hybrid inverters with built‑in emergency‑power functions and accompanying battery storage can provide backup, and that designing a system with these features from the start is considerably cheaper than retrofitting a separate solution later. Together, the hardware launches, digital quoting platform, and the emerging focus on backup‑power solutions illustrate a multifaceted expansion of Germany’s solar market, encompassing new installations, streamlined deployment, and resilience measures. ## Claims - During a grid power outage, a photovoltaic system automatically disconnects from the house supply. (corroborated by 11 sources) - The automatic shutdown is mandated by law to protect grid workers. (corroborated by 11 sources) - A hybrid inverter with built‑in backup function is required for a PV system to provide emergency power. (corroborated by 11 sources) - Battery storage is also required to achieve any degree of autonomous supply during an outage. (corroborated by 11 sources) - Charging an electric‑car wallbox during an outage consumes too much power to be practical. (corroborated by 11 sources) - Recent hybrid inverter models usually already include the needed backup function. (corroborated by 11 sources) - Backup power from a PV system typically suffices only for low‑consumption devices such as refrigerators. (corroborated by 11 sources) ## Timeline ### 2026-07-31: German households need hybrid inverters and storage for solar power during outages German rooftop PV systems shut off during grid outages; backup requires hybrid inverters and batteries, says expert Thomas Heberlein. 23 sources. https://clstr.news/cluster/fleck-and-sonnify-boost-german-photovoltaic-installation ### 2026-06-29: Enpal pushes C&I solar expansion in Germany amid cost‑model debates Enpal partners with Roof+ to build an 11.5 MW solar carport in Essen and aims to lead Germany's C&I PV market, while its rental model faces criticism for higher total costs versus regional installers. 2 sources. https://clstr.news/cluster/enpal-pushes-ci-solar-expansion-in-germany-amid-costmodel-debates --- Cite as: German solar market expansion. CLSTR, https://clstr.news/situations/german-solar-market-expansion