With Intersolar taking place in San Francisco this week, solar professionals from all over the world are coming together to network and exchange ideas. The Intersolar organizers have chosen the right city for this conference: The city’s mayor Gavin Newsom is actively pushing towards renewable energy sources. Under his leadership, the City and County of San Francisco started the first local solar energy incentive program in July 2008. Since launching GoSolarSF, there has been a 450% increase in applications for solar installations in San Francisco, from 200 to 850. Last week, Newsom announced plans to install three new solar installations with over 365 kw power on the San Francisco Housing Authority as part of the GoSolar initiative. According to a report issued by Environment California last week, San Francisco ranks third in number of rooftop solar installations in California. On a per-capita basis, San Francisco leads the state’s large cities for rooftop solar.