Energy

After succeeding at the once inconceivable task of making thermostats sexy, Nest is now out to change peoples' relationships with their utility companies, and make the energy industry more efficient in the process.

Today, Nest, the company founded by Tony Fadell -- the "godfather" of the iPod and fellow former top Apple employee Matt Rogers -- rolled out its next big effort.

While many had speculated that the company's follow-up to its Learning Thermostat would be another smart home appliance, the company instead unveiled Nest Energy Services, a broad initiative aimed at attacking the problems of general … Read more

After three months of sitting on the ground, it's looking like Boeing's 787 Dreamliner jets may be able to soar again.

According to the Wall Street Journal, the Federal Aviation Administration is rumored to announce as soon as Friday that the jets will soon be allowed for takeoff. People familiar with the matter told the Journal that the FAA believes that Boeing has proven that the redesigned batteries are now safe.

Boeing's Dreamliners were grounded in January after a battery fire on an All Nippon Airways flight let to a forced evacuation of the plane. The FAA … Read more

One of the biggest bugbears of smartphones is just how much juice they drain -- and how long they take to recharge. Batteries are also the reason many devices can't be smaller; after all, the batteries have to fit somewhere (although, given the burgeoning phablet market, that's not exactly a huge problem).

Scientists have made several recent attempts to build a better lithium ion battery. In the latest push, a team of researchers led by mechanical science and engineering professor William P. King at the University of Illinois in Urbana-Champaign has developed a new type of lithium ion battery that's just a fraction of the size of the batteries we use now -- and that can out-power the best supercapacitors. … Read more

There's long been speculation and research about algae's potential as a power source. The fast-growing plants waste three-quarters of the sunlight they absorb, so what if that energy could be captured and converted?

That's the premise behind BIQ House, designed by architectural firm Splitterwerk. It's a new algae-powered building that's opening on April 25 as part of the International Building Exhibition (IBA) in Hamburg, Germany. The building's east and south facades are covered in a system of louvres. Filled with microalgae, these louvres form 200 square meters of panels to power the building. … Read more

After setting a world record for the longest distance traveled on Earth's surface by a robot, Liquid Robotics today unveiled the latest version of its Wave Glider technology.

The updated platform is capable of autonomously prowling the world's seas while analyzing, processing, and transmitting data gathered from a wide variety of on-board sensors.

The new Wave Glider SV3 is essentially a self-powered sea-faring data center, a system that gives users the ability to investigate the world's water ways for months on end. The SV3 features a hybrid propulsion system, Silicon Valley's Liquid Robotics said, that can … Read more

Nest, the next-generation thermostat company focused on saving energy, has closed a major round of funding, according to a new report.

Nest has raised $80 million on a valuation of $800 million, GigaOm is reporting today, citing people who claim to have knowledge of the deal. Google Ventures led the funding round. Venrock, another venture-capital firm, also participated in the round, according to GigaOm.

The Nest Learning Thermostat has proven to be a huge hit. In October, CNET Reviews Editor-in-Chief Lindsey Turrentine reviewed the Nest and gave it a full five stars out of five, or "spectacular," rating. … Read more

A battery expert and chemistry professor at the Massachusetts Institute of Technology has some suggestions for how Boeing can solve its airplane battery woes, one of which could keep the fleet grounded until 2014.

The problems with Boeing's 787 Dreamliner, which was grounded earlier this month by Federal Aviation Administration order, could be solved by switching from the current lithium-ion batteries to nickel metal-hydride (NiMH) batteries, Donald Sadoway told Forbes. However, switching to NiMH batteries, which have a better safety track record, could result in a lengthy certification process that could take up to a year to complete, Forbes … Read more

LAS VEGAS--Ever since the launch of the Nest in 2011, programmable thermostats have become one of the hottest in-home technologies.

With its Apple-inspired interface and design, Nest gets the lion's share of the attention, but new competitors are hoping to steal some of the thunder. At CES 2013 here, Austin, Texas-based Allure Energy is hoping to join the party with Eversense programmable thermostat.

Eversense, which works on iOS and Android, is meant to give users the ability to automatically control their thermostats, not based on learned behavior, but on what they're doing in real time. The idea, explained … Read more

What if everything around you had the potential to generate small amounts of energy?

We've seen flexible, even stick-on photovoltaic cells before, but these decal-style solars are compact and fun.

In a recent article in Scientific Reports, Stanford University mechanical engineering assistant professor Xiaolin Zheng and colleagues describe thin-film solar cells that can be peeled and stuck anywhere.

The researchers manufactured them on a reusable silicon and silicon dioxide wafer and then stuck them on paper, plastic, and window glass.

The original cell efficiency of 7.5 percent was maintained, and the manufacturing uses existing processes and materials. That … Read more