Walmart dominates the list of U.S. companies using solar

One less reason to hate Walmart — the retail behemoth uses the most solar panel systems out of any other company in the U.S. Collectively companies and governments in the U.S. are delivering 2.3 GW of solar power, mostly on the rooftops of their buildings.

The U.S. solar market is booming this year

The U.S. solar market is shaping up to be larger than anticipated and could end up installing nearly 3.3 GW of solar panels in 2012, a roughly 18 percent jump from the previous forecast of 2.8 GW, according to a report released Wednesday.