Energy efficiency is the biggest employer by far, with 1.9 million jobs.
Research shows in ever more compelling ways that we can transform US energy rapidly and affordably.
The solar industry officially has a seat at the table with the largest energy producers.
Energy efficiency, renewables and less use of coal are finally making an impact on global emissions.
Solar tulips, solar glass, twisted solar cells are a few of the innovations we're seeing for solar.
Neighbors will be able to buy and sell solar electricity to each other, in a first step toward transforming how energy is bought and sold.
California is proving that even the most populous state in the US can quickly reach high levels of renewable energy.
Oregon is the first state to officially eliminate electricity from coal, while it joins the leading states on renewable energy.
The wind industry is vital to Iowa's economy, with 13 factories and 6000 jobs.
We don't want to be left behind, says the CEO of Energy UK.