Swiss voters have approved a new electricity regulation that makes it mandatory for large buildings to install photovoltaic systems to support the power community and encourage collective energy self-use.

Some 68.72% of Swiss voted in favour of new electricity regulations to speed up the development of renewable energy. The law provides new incentives for the development of photovoltaic power generation, and new buildings with a surface of more than 300 square meters must install solar installations on the roof or external walls.

States may extend this requirement to buildings with a floor area of not more than 300 square meters.

Swissolar, a Swiss industry association, said in a press release: "The Ministry's electricity law lays the necessary foundation for continued growth in solar power generation - mainly located in buildings and infrastructure and delivered by highly efficient installations in winter." Solar energy will become the second pillar of Switzerland's energy supply, alongside hydropower."

The new regulations also support local power communities and expand self-use groups. Distribution network operators must sell more electricity from local renewable sources to customers.

According to Swissolar, Switzerland will install more than 1.5 GW of PV systems by 2023.以上翻译结果来自有道神经网络翻译（YNMT）· 通用场景