The REPowerEU rooftop solar initiative is the European Union's strategic response to the continent's energy vulnerability exposed during the 2022 gas crisis. Its central goal? Achieve over 600 GW of installed solar capacity by 2030, much of it sourced from urban rooftops. Whether. . The purpose of this update is to evaluate and report on the progress made by Member States in the deployment and facilitation of household rooftop solar PV since the original report published in May 2022. This update seeks to assess the impact of significant policy and regulatory changes in the EU. . A new EU-wide analysis shows that rooftop solar photovoltaics could supply around 40% of Europe's electricity by 2050. The rooftops of EU's 271 million buildings could host around 2. European governments offer tax breaks, direct subsidies, and net metering schemes to incentivize adoption. The JRC estimates that Europe could technically install up to 580 GW of rooftop solar PV. .