But now a dramatic expansion is about to begin as new building codes take effect jan.
California to require solar panel.
California becomes first state to require solar panels on new homes the vote by the california energy commission again puts the state at the forefront of government controls over climate warming.
A new california law set to take effect in 2020 is expected to make the price of new homes in the state thousands of dollars more expensive.
The mandate is aimed at reducing california s overall greenhouse gas emissions.
California already generates more electricity from solar power than any other state.
California has become the first state in the country to require that all new houses have solar panels.
The california solar mandate is part of an initiative by the california energy commission to have at least 50 of the state s energy produced from clean energy sources by 2030.
The recommended energy efficiency standards will be added to building regulations and requirements at some point this year.
By now you might have heard that california passed a law requiring all newly built homes to be equipped with a solar power system.