As the cost of solar power drops, more consumers find that they hold the upper hand as utilities fight to maintain paying customers and the relevance of the grid
Has the Advanced Research Projects Agency–Energy failed in its mission to create alternative energy breakthroughs?
Engineers and industry agree that although challenges abound in utility-scale solar in the sunniest places on Earth, we have the technology to go big in the desert
Why isn't there more use of geothermal energy for power plants?
If test plants succeed, waste methane could fuel vehicles—but the conversion may not offer much environmental benefit
Can technology save the world's dirtiest fuel?
The material in disposable batteries may hold the secret to making an inexpensive storage system that can feed the electrical grid
The U.S. Department of Energy aims to make electricity from the sun cheaper than that from burning coal or natural gas
Nuclear power is one of the few technologies that can quickly combat climate change, experts argue
The amount of power to be reaped from tapping low- and high-altitude winds dwarfs global demand
A genetically modified strain of common gut bacteria may lead to a new technology for making biofuels that does not compete with food crops for arable acreage
Innovations could cut the growing amount of energy used for air-conditioning and refrigeration
Amid rising oil and gas production, can the Advanced Research Projects Agency-Energy get the U.S. to develop alternative, cleaner energy solutions?
How can a small federal agency help reinvent how the U.S. produces and uses energy?
Majumdar is stepping down after three years at the head of the U.S. Department of Energy's advanced energy research arm
The third annual ARPA-E summit showcases potentially transformative energy technologies
Various efforts are underway to find a cheap, efficient and scalable way to recycle the greenhouse gas carbon dioxide back into the hydrocarbons that fuel civilization
Abundant natural gas may undermine alternative energy sources, whether nuclear or electro-fuels
By 2050 solar power could end U.S. dependence on foreign oil and slash greenhouse gas emissions
The great hope for a quick and sweeping transition to renewable energy is wishful thinking