Plane stays aloft for 26 hours, reaches height of 28,000 feet

In a major triumph for alternative energy researchers and enthusiasts, an experimental, solar-powered plane Thursday successfully completed a 26-hour flight powered by 12,000 solar cells and sunlight-powered lithium batteries.

BMW launches the Concept ActiveE at the 2010 Detroit auto show. Originally posted at 2010 Detroit auto show...

Toyota launches the FT-CH hybrid concept at the 2010 Detroit auto show. Originally posted at 2010 Detroit auto show...

U.S. president unveils a tax credit, from funds earmarked under a stimulus package he signed last February, to boost jobs by promoting clean...

The maker of electric cars plans to use Panasonic's nickel-based lithium ion cells for its battery packs. Originally posted at Planetary Gear...

Google creates energy subsidiary and submits a request to buy and sell electricity. It's part of Google's goal to use large amounts of renewable energy to offset its carbon footprint...

Will home networks get smart to energy management? Whirlpool and Direct Energy team with a display maker and Best Buy in a big to automate savings...

SilverPac releases a sleek-looking touch-screen display that combines the functions of home energy monitoring and a programmable thermostat...

Technologies to automate and upgrade the grid will capture most of the $200 billion invested in modernizing electrical power systems, says Pike Research...

A boom in wind-power plants means a large amount of wind capacity is not always properly connected to the grid...

Panasonic is planning to market a home-use storage cell that will supposedly hold enough juice to power a typical Japanese home for one week, according to reports...

Credit extension has been delayed by the health care debate and because it has been linked with other tax incentives.

Company says the site--the largest photovoltaic solar power station in California--serves a model for its expansion into the utility business...

The start-up, which secured a large loan from DOE to make its solar arrays for commercial buildings, looks to raise $300 million to fund expansion of second factory...

Decisions made in 2010 will play a crucial role in shaping how consumers and the auto industry adopt all-electric and hybrid vehicles...

New applications will highlight environmental problems

Microsoft and Google have built web applications designed to highlight environmental problems coinciding with the climate change negotiations in Copenhagen...

Starting with 8 turbines producing 28 megawatts, Rhode Island expects offshore wind power eventually to make up the bulk of its green energy...

The U.S. agency will accelerate review of green technology patent requests in an effort to perk up economic development in the nascent industry...

Obama administration's decision Monday sends warning that with or without a law, Washington will tackle global warming in a serious way.

Startup builds liquid cooling system using cold plate technology. Silicon Valley's garages have a long history as incubators of technology...