Solar power

Researchers say their SunBOTs are 400 percent more efficient than comparable stationary devices.

City leaders in Hot Springs, Arkansas, have decided to solely use renewable energy, but on the whole, the U.S. is still behind the EU in adopting alternative power sources.

The idea of discarding available wind or solar output is anathema, imposed on power producers when production from these sources exceeds what the grid can accept.

If rolled out globally, the islands could offset the total global emissions from fossil fuels.

Trump's own Department of Energy credits existing wind power with a positive "annual economic impact" of $20 billion in the U.S.

Scientists in China say harnessing solar power in space will provide an "inexhaustible source of clean energy."

Mexican and U.S. law enforcement agencies discovered a highly sophisticated underground tunnel—featuring a rail system and solar-powered lighting—running underneath the border between Mexico and California.

To Trump and his merry band of climate-change deniers, boosting coal is fine. Helping solar is an unwarranted interference in the free market.

Industry advocates have predicted more job losses are on the way as 30 percent tariff sets in.

The move will stifle an entire industry.

Floating solar fuels rig can produce fuel that's currently used in NASA's rockets.

'You can solve cost, climate and public health all at the same time,' says chief sustainability officer Melissa Lavinson.

Wind farms in Oklahoma, Iowa and South Dakota will help power Google's global operations.

Smart windows become tinted in the sunlight—which could have twofold benefits.

One building already has electricity-generating windows.

These synthetic structures could be made into glass or textiles that could absorb sunlight one day.

The solar panels use tiny organisms to photosynthesize sunlight, converting it into energy.

A new generation of see-through solar cell technology could harvest energy from building and car windows as well as cell phones.

Panda Green Energy hopes the fun design will get children interested in renewable energy.

The president is betting that harnessing the power of the sun will decrease the cost of the wall.

Trump's withdrawal from the Paris Agreement makes it more likely the solar Silicon Valley will be located overseas.

The amount of water in the atmosphere equates to around 10 percent of all the freshwater lakes on Earth. Harnessing it could change the lives of millions.

In 2015 Google consumed as much energy as San Francisco.

Scientists have built a solar-powered boiler that separates urine from beer.

Writing for Newsweek, André Borschberg and Bertrand Piccard reflect on their journey.

Thanks to improved technology and affordable lease-to-own payment schemes, rural homes are lighting up with computers, TVs and more.

The experimental aircraft landed in Seville on Thursday morning.

Pilot Bertrand Piccard took a photo from outside the Si2 cockpit during the round-the-world flight.

The solar-powered plane demonstrates the possibilities of clean energy.

Ten blue Polycrystalline panels, Ikea said, are enough to power a standard semi-detached house.