Fuel refiner Valero joins Enerkem as a strategic investor with money to finance construction of a garbage-to-ethanol plants.
Start-up General Fusion gets $19.5 million in financing to pursue nuclear fusion, which has been studied for decades and always is considered decades away.
The Magnolia State will get a thin-film solar manufacturing plant as part of a state deal that includes a $75 million loan.
Start-up Climos, which wants to experiment with large plankton blooms to mitigate climate change, gets $3.5 million from Braemar Energy Ventures.
Solar start-up Stion raises $70 million to ramp up its production of thin-film solar modules and to build a panel with two layers of solar cells to improve efficiency.
Luminus Devices says it has a super-efficient LED that can direct light like a laser. The company also now has $72 million to see if it can pull it off.
President signs massive government stimulus package, saying it's a start to a cleaner energy infrastructure. But analysts still see real hurdles to transforming the energy business.