World’s first petaflop supercomputer obsolete after 5 years, faces decommissioning

Five years ago it was the world's fastest computer running over a million billion calculations per second, but today Los Alamos Lab's Roadrunner supercomputer is being decommissioned.

Google gives energy group $2.65M to update our outdated power grid

Google wants to change the way you measure your energy consumption, but the aging energy grid is standing in its way.

Intel’s Ivy Bridge chips could soon get a lot less power hungry

Intel's quest to make its Ivy Bridge processors more energy efficient could make devices like the Surface Pro a lot more compelling.

Opower embraces big data to lower your utility bill

You want to save money. Utilities want you to conserve energy. Middle-man Opower thinks it can satisfy everyone with a brand-new platform designed to get people excited, yes excited, about energy conservation.

Clean-tech company View pulls the curtain off the future of glass

After five years of research and development, View reveals its smart windows that automatically adapt to outside conditions.

Facebook app promotes energy conservation with peer pressure

If simple common sense can’t curb energy usage, perhaps a little peer pressure from Facebook friends will do the trick.

Facebook has joined forces with energy efficiency startup Opower and the National Resources Defense Council to release a social energy …

Vigilent raises $6.7M from Accel to make data centers suck less power

Energy management systems startup Vigilent has raised a $6.7 million round of funding to optimize energy efficiency at data centers using the power of “big data,” the company announced Tuesday morning.

One huge problem companies struggle with when it comes …

Google claims its data centers use 50 percent less energy than competitors

Google released an annual energy report for its data centers Monday, claiming that by measuring energy consumption, its data centers are 50 percent more efficient than other companies’.

Tucked away in Douglas County, Georgia, next to a Six Flags theme …

AMD buys Sea Micro for $334M to get into energy-efficient “microservers”

There’s a sea change happening in a segment of the server market dubbed microservers. And Sea Micro has been at the center of it, disrupting the market with energy efficient servers that use lightweight processors from Intel.

Advanced Micro Devices …

Apple is building the largest solar array in the U.S., report says

Apple released its 2012 Facilities Report today, revealing the company’s data center in North Carolina will be powered by America’s largest end user-owned solar array.

It’s easy to peg Apple as a villain these days, given the situation with workers …

Building energy efficiency analytics provider FirstFuel Software raises $2.4M

FirstFuel Software, a provider of analytics software that tracks energy usage in commercial buildings, announced today it has raised $2.4 million from Battery Ventures in its first round of funding.

The company tracks energy usage in a building without installing …

Home energy management provider EnergyHub raises $14.5M

EnergyHub, a provider of energy efficiency products and associated software, announced today that it has raised $14.5 million in its second round of funding.

The company builds web-enabled home energy software that tracks electricity usage. It sells outlets, surge protectors, …

Fuel cell manufacturer ClearEdge raises $73.5M

ClearEdge Power, a manufacturer of fuel cells that run on natural gas, announced today that it has raised $73.5 million in its fifth round of funding.

The company manufactures fuel cells that run on natural gas, which is broken down …

SeaMicro drops its third low-power ‘atom bomb’ on server makers

For the third time in nine months, SeaMicro is announcing a new line of servers that can pack an awful lot of computing power in a sixth of the usual space and a quarter of the electricity.

SeaMicro shook up …

Nearly profitable smart grid developer Silver Spring Networks files for IPO

Smart grid hardware provider Silver Spring Networks filed to go public on Thursday. The company lost $1.3 million in the first quarter this year, compared to $22.2 million in the first quarter a year earlier, according to the company’s S-1 …

Smart energy management software developer Clean Urban Energy raises $7M

Clean Urban Energy, a provider of web-based software designed to improve energy efficiency for commercial buildings, announced Thursday that it has raised $7 million in its first round of funding led by Battery Ventures.

The software keeps track of certain …

Kleiner Perkins leads slower Q2 cleantech investing

Investments in clean technology projects fell 10 percent in the second quarter this year to $1.83 billion when compared to $2.03 billion in the second quarter of 2010, according to research firm Cleantech Group.

Kleiner Perkins Caufield & Byers led …

New study shows cable set-top boxes are electricity vampires

Think you’re running an energy-efficient household? You better turn off that cable box. Digital video recording (DVR) set-top boxes burn through more electricity than an energy-efficient refrigerator, according to a new study by the National Resource Defense Council.

The DVR …

Home energy network provider iControl raises $50M

iControl, a provider of broadband home management software, said Monday it raised $50 million in its fourth round of funding. Investors in the latest round included Cisco Systems, Comcast Ventures, Intel Capital, Charles River Ventures, Kleiner Perkins Caufield & Byers, …