The energy efficient, flat-shaped bulb will now retail for less than $4 in many parts of the US, and for as little as $1.97 in at least one market.
Microsoft's free Joulemeter utility gives you a rough estimate of a Windows system's power consumption. Plus: tips for reducing your electronics energy bill.
Researchers at South Korea's KAIST university have developed a flexible thermoelectric generator that can convert body heat to power.
Outside Twitter's corporate headquarters in San Francisco, Greenpeace makes its plea for the social media company to "Make our tweets green."
Festo has once again turned to nature to build a gesture-controlled robotic kangaroo that stores and uses the kinetic energy of its own motion.
One day after grading tech companies on their use of clean energy, a Greenpeace blimp drives home the point for morning commuters in the Bay Area with a fly-by.
Amazon is among the last top IT companies to embrace clean energy like wind and solar, Greenpeace says in a new report that looks at the energy footprint across tech companies.
Clean electrical power from a fusion reactor remains a distant goal, but it's one step closer following a test in which fusion energy output exceeded the energy pumped into a fuel pellet.
Energy Bar for Android gives you a new way to check your battery status by adding a thin bar at the top of the screen.
Researchers at Virginia Tech have developed a working sugar-powered fuel cell with energy density greater than that of current lithium-ion batteries.