The greatest need modern civilizations have is energy. Learn about oil, electricity and newer forms of energy like solar and wind power.
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Hydropower is essential to the U.S. power grid, but it only creates energy when there's water to move. How many hydroelectric plants could be in jeopardy as lakes and rivers dry up?
A virtual power plant is a network of wind farms, solar parks and home battery systems designed to relieve the energy load on the main power grid. We talked to one expert to find out how.
A combination of energy deregulation, competitive power markets and the push for low prices are all to blame for taking down the Texas power grid. But what's being done to prevent it from happening again?
We may be able to capture carbon emitted from fossil fuel-burning power plants and convert it to fuel for storing energy generated by wind turbines and solar panels.
Germany's multi-billion-dollar investment in green energy seems to be paying off, but there's still more work to be done.
By Mark Mancini
Tesla has built the world's largest lithium-ion battery storage system in Australia.
Researchers have found a way to use evaporation from lakes and reservoirs to generate electricity, and say that could become a major renewable energy source.
Australia's having some serious energy issues. Elon Musk is betting Tesla can help.
The largest coal-fired power plant in the western United States could close up shop by the end of 2019. And the reasons aren't strictly environmental.
By Julia Layton
The island of Ta'u is ditching diesel and embracing solar, with a little help from SolarCity and some government funding.
Yep, the same country that's home to Saudi Aramco, an energy behemoth valued at trillions of dollars, thinks it might be time to start stepping away from the oil.
By Ben Bowlin
While nanoparticles and nanocrystals have always existed -- they're even found in volcanic ash -- it was only recently that scientists could manipulate things on the nanoscale. What applications might nanotechnology have in fuel efficiency?