Nobody outside Tesla appears to know what its new mystery product will be. But there's reason to believe it's some kind of battery.» Read More
Warren Buffett receives good press for renewable-energy investments, but is he really a climate change ally? It's complicated.
Prices of fossil fuels may be plumbing multi-year lows, but that's not likely to keep them from being displaced by renewable energy, analysts said.
German utility RWE and other investors are betting that the largest traded renewable company in Europe has a bright future.
The airplane Solar Impulse isn't the only unusual item being powered by the sun. Here are five unusual items already using solar energy.
A solar-powered plane took off from Dubai Monday, on the first leg its five-month record-breaking round-the-world flight.
Hydropower, which by itself has accounted for most of the renewable energy generated in the U.S. for years, is no longer a majority of one.
The myth that only liberals support solar technology is being shattered by loud voices coming from the right.
Some energy-linked stocks have sold off unfairly, presenting an excellent buying opportunity, according to a renewable investing expert.
Some utilities are pushing back against the growing number of customers who use solar technology to generate their own electricity.
Current policy for offshore wind power is not working, Breaking Energy said in an article on its site.
Apple is looking to begin production of an electric vehicle as early as 2020, according to Bloomberg, citing people with knowledge of the matter.
Some environmental groups are taking issue with First Solar's new farm, in which Apple is making a big investment.
Biologists have developed a way to make burnable liquid fuel out of sunlight, by mimicking the way plants derive energy from the sun.
7 energy stocks in the S&P are up big already from the low in oil this year and analysts still see big upside, according to a USA TODAY.
A former top oil executive says the price of gas at the pump could double by year's end, even as consumers are enjoying low prices.
Carlyle's David Rubenstein tells CNBC low oil prices are creating new places to invest.
Amazon announced a partnership with Pattern Energy to build a 150-megawatt wind farm in rural Indiana.
Solar accounted for 1 out of every 78 new jobs in 2014, according to The Solar Foundation.
If enormous heat deep in the heart of Iceland's volcanoes can be harnessed for geothermal energy, the industry may be set for a revolution.
Hemlock Semiconductor blamed an escalating U.S.-China solar trade war for the recent closure of a Tennessee factory.