All new buildings with large roofs must have solar panels installed. The law will apply to all new builds with a roof space of more than 300 m2.
But parliament has rejected a campaign to also include renovations and is still discussing solar panels for parking spaces.
The move comes after voters in canton Valais rejected building solar farms in the Alps.
Commentators suggested the people wanted buildings to be prioritized for solar panels before installing them in the mountains.
Trees down, power out across western Switzerland
Western parts of the country are picking up the pieces after storm Benjamin swept through the region yesterday.
Police frank about French crime wave
Two gun shops in the Lausanne area have been hit by French robbers within a week.
Skiing to be more expensive this season
Skiers in Switzerland will pay a little more this winter.
Thousands struggle with basic skills
In Switzerland, about 15% of adults struggle with basic reading, math, and problem-solving skills - that’s roughly 850,000 people.
Army sergeant throws cat at recruits
A shocking video from a Swiss barracks in Lenzburg, canton Aargau, has sparked outrage.
Clock change sends people to the ER
Clocks change at the end of the week - and it could be dangerous - as it sends more people to hospital.
