Higher costs and technical challenges from the ocean environment itself has put it decades behind wind and solar. Can it catch up?
In addition to reducing costs for consumers and utilities, energy retailers can increase their revenue.
This low-tech approach to large-scale energy storage is garnering notice from environmentalists and utilities.
If you only care about "reasonable" goals, proceed as usual. But if you seek to innovate, look beyond your buddies to make unconventional allies.
Striving for zero impact drives a push for new tech. Here are 6 lessons to help other businesses innovate.
'Windfall: The Booming Business of Global Warming,' explores climate change profiteering. Here's why it's a must-read.
Whether working on better maps or organic batteries, these firms are at the forefront of developing tech to help the planet.
Turning waste carbon into fuel and plastic products are just two examples of technologies that could transform entire industries.
At the ARPA-E Summit, technologists and energy users made the case for innovation that makes the energy grid look like an "antiquated backup."
Tech and economic forces are helping to shape a low-carbon energy future.
The founder and CEO of O'Reilly Media and co-founder and EVP of Sungevity share insights on the exciting future of distributed architecture.
As the definition of clean tech expands, more investors are backing companies with environmental innovations.
Who else is making progress on renewable energy? Wal-Mart, Whole Foods, the city of Houston and more.
This little-known nonprofit is working to rebuild the multi-year reflective "bright ice" in the Arctic, in order to slow the Arctic melt.
After winning the 2013 Cleantech Open, the startup plans more pilots with California farms, orchards, vineyards and ranches.
Many clean-tech advocates are celebrating the tech giant’s business deal. But there’s a counterargument to be made about potential drawbacks.
According to Pew, private sector partners and creative financing are accelerating the military's quest to slash energy intensity and increase the use of clean tech.
Renewables, EVs and retrofits all played a role in the transition to a more prosperous and secure energy future.
The combined forces of SolarCity and Tesla promise to make battery storage for solar PV systems sexy.
Smart device maker Nest shows how energy efficiency can be sexy — and profitable.