Business & Technology

Business & Technology

Liquid battery electric vehicle could charge in three minutes

“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.

Solar Power

Peel-off solar panels could make solar competitive with coal

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.

Election 2012

Watch Republicans try valiantly to be funny by mocking Chevy Volt

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 …

Business & Technology

How EPA helps big corporations greenwash

EPA's Green Power Partnership, which recognizes companies using renewable energy, makes Walmart look good while ignoring more significant efforts by much smaller entities.

Renewable Energy

A battery large enough to power the U.S. would be the size of 2,200 Walmart SuperCenters

Renewables are intermittent, so they'd have to be backed up by about 80 gigawatts worth of batteries.

Green Cars

DOE-funded battery breakthrough to halve cost, triple range

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.

Business & Technology

LEGO buys $500 million worth of wind turbines

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.

Climate & Energy

The best of the U.S. Army’s ‘Going Green’ Pinterest

Who says Pinterest is just for fashion and cupcakes?

Cleantech

One Million Lights trades kerosene for solar in developing countries

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 …