“Flow” batteries, i.e. batteries filled with a liquid electrolyte that can be pumped out and replenished, have the potential to transform the process of charging an electric vehicle into something that more closely resembles filling it up with gas.
Ultra-thin solar cells that can be "peeled off" from larger pieces of silicon like delicious fruit roll-ups could be the key to making solar competitive with coal, say researchers at MIT.
Aw, look, they’re trying to make jokes! I’m going to print this right out and hang it on the fridge in a frame that says …
EPA's Green Power Partnership, which recognizes companies using renewable energy, makes Walmart look good while ignoring more significant efforts by much smaller entities.
Renewables are intermittent, so they'd have to be backed up by about 80 gigawatts worth of batteries.
A new breakthrough from California-based Envia Systems will yield lithium-ion batteries that are less than half the cost of current cells, while also having three times the energy density.
The world's third-largest toy manufacturer is going to be putting "made with wind power" labels on all those boxes of LEGOs, and not just because they bought their power from utilities with wind turbines.
Who says Pinterest is just for fashion and cupcakes?
For kids in developing countries, it’s crucial to have a reliable light source — otherwise you can’t see to read or do your homework. But …