Energy Efficiency | featured news

How many men does it take to design a new energy-efficient light bulb? Three. A team of self-described adventure-seeking Canadian “tree-huggers” have produced the NanoLight, which they call a breakthrough in LED lighting technology, touting it as the world’s most energy-efficient light bulb.

Massachusetts tops perennial efficiency king California on the strength of a robust program to get utilities to make improvements.

Mitt Romney is more apt today to talk about his support for oil drilling than about the environmental policies that he advocated while governor of Massachusetts... It was May 2006. Mr. Romney, the Massachusetts governor, was chatting up his Montana counterpart about his vision for an energy-efficient car of the future — lightweight and narrow, with tandem-style seating, so that two vehicles could drive side by side in one highway lane.

The relentless rise of electricity prices over the past decade has made many consumers more conscientious about how they use electric power. Many of those conscientious people may find it frustrating - to put it mildly - that their daily or even hourly efforts to turn off devices they're not using hasn't delivered the results ...

The retailer opted not to have the chargers, many of which were outdated, replaced for free under a program in California, saying that customers rarely, if ever, used them.

With the help of a growing industry of energy consultants, officials are evaluating every detail of their daily operations and are replacing energy-guzzling equipment with more efficient models.

Nissan's new electric car, the Leaf, will get the equivalent of 99 miles per gallon in combined city and highway driving, based on government testing.

Solar power is coming to President Barack Obama's house.

One of the biggest hurdles on the road to make electric vehicles attractive for the mass market is the long time it usually takes to charge batteries. But a Japanese company called JFE Engineering now claims it has found a solution for that problem.

Shares in electric car maker Tesla opened at $19, above the IPO price of $17, which in turn topped the proposed price range by $1.