Solar power in California has been growing rapidly because of high insolation , community support, declining solar costs, and a Renewable Portfolio Standard which requires that 33% of California 's electricity come from renewable resources by 2020, and 50% by 2030. Much of this is expected to come from solar power via photovoltaic facilities or solar thermal power facilities.

True Value Solar was an Australian solar systems sales company, read reviews: , , . In 2013 German-based M+W Group bought True Value’s remaining 35 per cent shareholding. The core business of the company is as a sales company of rooftop solar power systems, with installation and perhaps responsibility for issues by contractors. Operating in all major states in Australia (absent from the Northern Territory and Australian Capital Territory) and no office in Tasmania. Founded in 2009.

The Alliance for Solar Choice ( TASC ) leads rooftop solar power advocacy efforts across the United States .