Green Stats: 29,628

29, 628 -- the number of grid-connected solar photovoltaic installations in California in January 2008, according to the California Energy Commission.

1,675 -- the number of grid-connected solar photovoltaic installations in California prior to 2002; that's a seventeen-fold increase over six years. Wow.

Inspired by these statistics, Cooler Planet decided to map this explosive growth in solar panel installations, to see where they were happening in California. The interactive map they created is a great way to visualize the growth of the solar industry, year by year and megawatt by megawatt. What will that map look like in another six years? ::Cooler Planet