energy

  • Harvesting Energy From Radio Signals: Two New Devices From Japan (Video)

    Harvesting Energy From Radio Signals: Two New Devices From Japan (Video)

    Gleaning electricity from radio signals isn’t super-efficient (or a new concept), but it’s possible technically. Two companies from Japan have recently come up with new devices that can do just that: one is harvesting energy from cell phone signals, the other uses a rectifying antenna (Rectenna) to produce energy. Read More

  • DIY Energy Monitor Mounts To Your Electric Meter

    Remote electricity meters are interesting things. They essentially change the way you think about the juice flowing into your home by connecting to the potentially aged box in your basement and sensing the total energy usage in your home over time. The resulting stats are often quite enlightening and may help you make wiser energy-use decisions. Read More

  • Panasonic Shows Advanced Fuel Cell For Home Use

    The news has become muted regarding <a href="fuel cells and their future role in energy supply in recent years, but it seems we’re getting there step by step: Panasonic today said that it has developed a new type of home-use fuel cell [press release in English], which is more efficient and cheaper than its existing solutions. Read More

  • New Fujitsu Device Harvests Energy From Both Heat And Light

    Fujitsu today announced the development of a single device that’s capable of generating electricity from either heat or light. Previously, two devices had to be combined to generate electricity from these sources (through energy harvesting, energy can be derived from external sources like light, heat, vibrations, wind energy etc.). Read More

  • Even If Solar Grows 30X, It Will Only Be 4% Of America's Power Capacity

    Even If Solar Grows 30X, It Will Only Be 4% Of America's Power Capacity

    For all the talk about solar, the US market for solar power still has a long way to go before it makes a real dent in the country’s overall power capacity. On Monday morning, Bloomberg New Energy Finance, a major aggregator of green industry data released a few key projections: the US solar market is on track to grow 30x to 44 gigawatts by 2020 and could make up 4.3% of America’s… Read More

  • Solarve: Sanyo Shows World's First Solar Cell-Equipped Bus

    Sanyo in Japan today announced [JP] what it says is the world’s first solar-cell-equipped public bus, the Solarve (which stands for Solar Vehicle). The bus was unveiled to commemorate the 100th anniversary of a Japanese transportation and logistics company called Ryobi [JP]. The Solarve is essentially a city bus with solar cells on top that generate power for its interior LED lights. Read More

  • Study Shows People Are Clueless About Energy Savings – Here's What Actually Works.

    Quick, name one of the best things you can do to save energy at home. If you said “turning off the lights,” you’d be wrong. But you are not alone, most Americans say the same thing. A new survey shows most people have misconceptions about what works best to save energy. Keeping lights off isn’t a bad idea in itself, but it has significantly less impact than swapping… Read More

  • Alternative Energy: A Guide To Greening Your Home

    Alternative energy is a growing market, and though many states offer tax credits, rebates, and other incentives to promote clean energy, it can still prove to be an expensive proposition. It generally also requires plugging your energy source into the grid so you’re not left in the dark when the wind calms or the sun lingers behind clouds. Here is a roundup of solutions that can help power… Read More

  • The Heat Is On: There Is Plenty Of Geothermal Energy Underground, We Just Need To Get To It

    Most green technologies gather energy above ground, but like Jules Verne, we want to take you on A Journey to the Center of the Earth. Alright, not even close to the center, but deep down nonetheless, where naturally occurring hot water can be turned into clean energy above ground. It is estimated that the amount of heat within 30,000 feet below the earth’s surface holds potentially… Read More

  • Caltech Awarded $122 Million to Create Fuel From Sunlight

    The U.S. Department of Energy announced today that it will award up to $122 million to create a Fuels form Sunlight Energy Innovation Hub led by the California Institute of Technology. The Hub’s goal is to develop ways to convert solar energy into chemical fuels and scale the technology for commercial use. The project is in part inspired by the way plants produce energy, and will use… Read More

  • Terra-Gen Power Closes $1.2B in Financing to Build Nation's Largest Wind Farm

    Terra-Gen Power announced closing $1.2 billion in construction financing and wind turbine orders. The company will build four wind power projects for the Alta Wind Energy Center in Kern County, California, for which Vestas-American Wind Technology will provide 190 turbines with a capacity of 570 megawatts. This is the largest number of wind turbines ever ordered for a single site in the… Read More

  • China now the world's top energy consumer (but the U.S. has become more energy efficient)

    Is there a green movement in China? Maybe there ought to be, considering the numbers that have just come out. China is now the planet’s number one consumer of energy, overtaking the U.S. in the process. But at the same time, the U.S. has improved its energy efficient more so than China, meaning that the U.S. can get the same amount of work done while consuming less, say, coal or oil. Read More

  • Solar Impulse, the solar-powered airplane, tries to fly 24 hours

    A solar-powered airplane, named the Solar Impulse, means to prove, once and for all, that harnessing the energy of the Sun is a good and practical idea. I mean, why would we try to capture some of the energy put out by a completely free nuclear reactor hanging in the sky? The plane took off from Switzerland a little bit ago, and will try to fly for 24 hours without stopping. Here’s… Read More

  • CleanTech Venture Investments Total $2 Billion In Q2, Exits Reach More Than $8 Billion

    Clean technology remains one of the hottest areas of venture funding. In the second quarter, cleantech venture investments worldwide totaled $2.02 billion across 140 companies, according to market research firm Cleantech Group and Deloitte. The numbers are in line with last quarter’s $2.04 billion, but 43% higher than one year ago. Exits for the quarter totaled more than $8 billion… Read More

  • OPower to Expand to West Coast, Names iLike Founder Hadi Partovi to Advisory Board

    Energy efficiency tracking company OPOWER added Hadi Partovi to its Technology Advisory Board and will open new offices in San Francisco next month. The Arlington, VA based company’s 10,000 square foot office in San Francisco’s South Park neighborhood will have room for between 75 and 100 employees, a large part of which will be engineers. “We signed a two-year sublease… Read More

  • New solar cells printed on paper

    Everyone loves the idea of solar energy. The three big challenges are that solar cells are expensive to produce, they’re not very efficient, and you need some means to store the energy collected. I’d heard of solar shingles before, which are basically roofing shingles with solar cells in them, but now word is coming out of solar cells printed on paper. As usual, the technology is… Read More

  • Aquafairy FC Stick: Efficient mini fuel cell for gadget fans (video)

    Fuel cells are on their way into the mainstream, even though the commercially available models are still pretty pricey. But there are companies like Kyoto-based Aquafairy [JP], for example, preparing affordable fuel cells, too. Their four new fuel cells are intended to make gadget fans in particular happy: the micro FC Stick (0.8W), the FC-Stick (2W), the FC-Cube (3W) and the FC-Cube Dual (6W). Read More

  • John Doerr On Bloom Energy Launch: "This Is Like The Google IPO"

    John Doerr On Bloom Energy Launch: "This Is Like The Google IPO"

    After eight years of operating in quasi-stealth, Bloom Energy came out with a bang today at an event in Silicon Valley attended by Arnold Schwarzenegger, Colin Powell, Larry Page, John Doerr, and executives from eBay, Walmart, Coca-Cola, and FedEx. All of the big-name companies, including Google, are beta customers of Bloom’s distributed energy fuel cell technology (which was the subject… Read More

  • Walking and jumping and generating energy, oh my

    Sometimes I’m assigned stories and I’m like, “Really? If you insist, boss.” This is one of those stories. It’s a collection of sidewalks, or derivatives, that “work while you wait.” Yup. Read More

  • Steorn to show off overunity Saturday: Where will you be when we discover limitless free energy?

    This Saturday I’m probably going to wake up a little later (we have kids so that means like 8am) and maybe make some breakfast. Then maybe we’ll go for a walk in town here or the wife will take the kids to the Children’s Museum and I’ll do some writing. Then I’ll eat lunch with the fam, maybe watch a movie (probably some Disney stuff). The kids will eat dinner… Read More