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AlternativeEnergy posts

Mini Hydro Turbine concept could bring renewable energy production to your bathroom

by Tim Stevens posted Apr 6th 2009 at 8:13AM

Environmentalists would have you believe that leaving the faucet running while you brush your teeth puts an unnecessary drain on the environment. We always disagreed, and if Jin Woo Han's concept Mini Hydro Turbine ever goes into production we might finally have something to back up our argument. The device would capture the "free" energy of your tap to spin a little generator, in theory producing enough juice to charge up an electric toothbrush or shaver. That actually sounds somewhat reasonable, but Han's suggestion of powering your boiler with this thing is probably a bit optimistic. It would also take quite an optimist to think this could some day appear in a bathroom made of tiles and not pixels, but we'll keep on hoping; pairing this with a turbine toilet might enable us to take our homes completely off the grid -- or our bathrooms at least.

[Via Gadget Lab]

Baby steps: new solar cell efficiency record isn't awe-inspiring

by Darren Murph posted Jan 27th 2009 at 2:02PM

Granted, we've no idea what it takes to really push the efficiency level of a solar cell, but we're getting pretty bored with these incremental improvements year after year. If you'll recall, the record for solar cell efficiency sat at 40.7 percent in 2006, and that was raised to an amazing 40.8 percent last August. Today, researchers at the Fraunhofer Institute for Solar Energy Systems have announced an all new milestone: 41.1 percent efficiency. According to team head Frank Dimroth, the crew is simply "elated by this breakthrough." Meanwhile, the rest of planet Earth is suddenly depressed by the thought of perishing from old age before this data point ever breaks the big five-oh.

[Via Gizmag]

Plasma Plant turns your old junk into electricity, which can then be used to create more junk

by Joseph L. Flatley posted Nov 12th 2008 at 8:52PM

The transmutation of garbage into energy is a particularly modern form of alchemy. We've seen it done on a smaller scale in the past, but now a company called Geoplasma is assembling the country's first plasma refuse plant in St. Lucie County, Florida. Scheduled to go online by 2011, the plant will process 1,500 tons of garbage a day, adding 60 megawatts to the power grid -- enough energy to power 50,000 homes. The plant works by vaporizing refuse with a 10,000 degrees Fahrenheit stream of plasma. The organic components (food, fluids, paper) create a pressurized gas that is then used to turn a turbine, while any inorganic refuse (metals) that may be present condenses, later to be collected for industrial uses. But will it power a Flux Capacitor?

[Via Inhabitat]

New solar cell efficiency record (barely) achieved at 40.8%

by Darren Murph posted Aug 15th 2008 at 8:10AM

Just under two years ago, researchers at Boeing-Spectrolab managed to achieve 40.7% solar cell efficiency. Two years later, scientists at the US Department of Energy's National Renewable Energy Laboratory have demonstrated their nerve by trumpeting an all new world record... one that's 0.1% points better than the last. Yes, your new record now sits at 40.8% -- tremendous progress, wouldn't you say? Looking outside of the numbers, you'll find that these cells differ "significantly" from the prior record holders, which enable them to be thinner, lighter, cheaper and altogether swanker. That's it for now folks -- come back in a couple years, we hear 40.9% is just around the bend.

[Via CNET]

Mitsubishi's i MiEV electric car to be tested in California

by Darren Murph posted Aug 8th 2008 at 3:03AM

Mitsubishi's i MiEV electric car has spent some serious time on the streets of Japan, but before long, the fuel-shunning vehicle will be roughin' it here in the US of A. The auto maker is teaming up with Southern California Edison and PG&E in order to see how it fares in LA traffic and how to best integrate it with the power grid. As of now, the whips should be cruising down the carpool lanes in Q4, though a few modifications may be needed in order to comply with US laws. Plans are to test the i MiEV for three solid years, and hopefully the $30,000 ride will be made available for purchase shortly thereafter (or earlier, if we're fortunate). What now, MINI?

[Via Wired]

Texas wind power initiative to blow other states away

by Darren Murph posted Jul 18th 2008 at 6:16AM

Oh sure, Rock Port, Missouri managed to snag the title of being "100% wind powered," but Texas' new plan will make the Show Me state's gusty initiatives look awfully weak. Officials at the Public Utility Commission recently okayed a plan to "build billions of dollars worth of new transmission lines to bring pollution-free energy from West Texas to urban areas." The ginormous Lone Star state is already the nation's leader in wind power, but when said plan is fully implemented (pending final approval), it'll produce more wind energy than the next closest 14 states combined. Granted, customers will be paying a touch more ($4 per month is the current estimate) for all this clean energy, but pundits assert that the cost is minor when looking at just how much this will help out Mother Earth. Look for everything to go live in four to five years, barring any unforeseen setbacks.

[Thanks, Adam]

Dyson actually not looking to build electric car, just a wicked fast vacuum

by Darren Murph posted Jun 28th 2008 at 10:04AM

Look folks, just because Dyson can build a motor with enough oomph to power a vehicle, that doesn't mean it's actually going to. At least that's the message a company spokesperson wants you to believe. Contrary to earlier reports, James Dyson is not looking to enter the electric automobile sector in any way, shape or fashion. Said spokesperson was quoted as saying that "James Dyson did say that [Dyson's] new digital motor could power a car, but it is not working on, and [we] have no plans to create an electric car." Okay, but can you at least make the Ball 2.0 street legal?

[Via AutoblogGreen, image courtesy of Telegraph]

Dyson looking to motor into the electric car arena?

by Darren Murph posted Jun 25th 2008 at 5:14AM

Dyson (yes, that Dyson) could be looking to play a role in the next great electric automobile. Just let your brain simmer on that a moment, and see if you can stifle any forthcoming laughter. Believe it or not, the British inventor famous for his iconic vacuum designs is actually developing a "powerful lightweight motor that could enable electric cars to zoom along for hundreds of miles without causing pollution." In theory, the eventual vehicle would scoot about much quicker than the majority of sluggish electric vehicles and solar panels would be tacked on the roof for regeneration in sunlight. Of course, some analysts are suggesting that he continue to keep his innovative motors in household gizmos, and rather than strike out on his own to invent a new car, he could simply partner with an existing automaker and toss in his design genius to craft something that's not horrifically ugly. Sounds pretty good to us.

[Via Core77, image courtesy of Telegraph]

Sharp solar panels to be used in two Japanese mega plants

by Darren Murph posted Jun 24th 2008 at 10:57PM

Sharp has certainly been an integral part of these solar installations before, but the latest endeavor by the city of Sakai and the Kansai Electric Power Company isn't anything to sneeze at. The initiative will see a pair of "mega solar plants" constructed, one of which will crank out around 10,000 kW while the other outputs 18,000 kW. Once the plants go online in 2011, expectations are that CO2 emissions will decrease on the order of 10,000 tons per year. Of course, a staggering ¥5.0 billion ($46.5 million) will be coughed up in order to make it happen, but you can bet Mother Earth will certainly see it as money well spent.

[Via CrunchGear]

Offshore wind power park to energize Delaware homes

by Darren Murph posted Jun 24th 2008 at 12:02PM

Unlike Rock Port, Missouri, the entire state of Delaware won't be 100-percent wind-powered after Bluewater Wind constructs a $1.6 billion wind park just off its shore, but the state will be able to "light about 50,000 homes a year" for the duration of the 25-year contract. Said agreement was just nailed down between the aforesaid firm and Delmarva Power, and it hopes to start powering homes via wind by 2012. The offshore site will sit around 12 miles off Rehoboth Beach, with a number of turbines to be planted 90-feet into the sea floor and sport three blades apiece measuring 150-feet long. It's noted that vacationers and locals alike won't be able to notice the park from the beach except on a few remarkably clear days, but if their energy bills sink because of it, we don't really think they'll mind, anyway.

ElectraTherm's Green Machine converts waste heat into electricity

by Darren Murph posted Jun 1st 2008 at 2:27PM

Converting residual industrial heat into something usable (read: electricity) has proven to be more than a novel concept on more than one occasion, and ElectraTherm's giving the process one more vote of confidence by installing its Green Machine at Southern Methodist University. Just this past week, the firm flipped on its first commercial waste heat generator at the Dallas-based institution, with hopes to generate "fuel-free, emissions-free electricity at three to four cents per kW/hr during payback period and under a penny/kW hour thereafter." The 50kW rig has so far exceeded expectations, and the firm is now forecasting that its units will have a "subsidy-free payback period of three years or less." Of course, we aren't told exactly how many zeros reside on the left of the decimal or anything, but folks in the area can get a tour of the installation later this month.

[Image courtesy of Jetson Green]

Crystals hold promise of affordable solar energy, may have been purchased on eBay

by Darren Murph posted May 28th 2008 at 7:41PM

We have no real way of verifying whether or not these so-calls crystals were purchased alongside some bizarre time machine on eBay, but we'll take this guy's word for it and assume not for the time being. Reportedly, University of Queensland professor Max Lu has teamed up with researchers in order to grow "the world's first titanium oxide single crystals with large amounts of reactive surfaces." Put simply, these very crystals can "absorb sunlight and convert it into electricity." It's said that Lu has been working on the project for some 15 years, and even now, he doesn't expect the creation to be commercially viable for another decade. Aside from morphing into fairies and making dreams come true, the things could also be used to "purify air and water." Pair this up with an invisibility cloak and we'll really be in business.

[Thanks, Brendan]

Hydraulic transmission gives engines, wallets a break

by Darren Murph posted May 27th 2008 at 9:58AM

Another day, another potential find to avoid the imminent fuel crisis. On the docket today is Ernie Brookins' hybrid drive system, which "captures, compresses, and stores wasted drive-train energy produced when a vehicle's engine is running." Ernie here has concocted a hydraulic transmission that can reportedly power vehicles without the engine running all of the time, and he expects the solution to save motorists around 50-percent in fuel costs. Better still, the contraption could theoretically work on nearly any vehicle -- from school buses to grain trucks to high-octane Power Wheel Jeeps. As these things seem to always go, the project has hit a roadblock without a source of funding, so if any VCs out there are looking for a somewhat solid place to shove $250,000, give this man a ring. [Warning: read link requires subscription]

[Thanks, Rachel]

Lily-shaped pads could generate solar energy in Glasgow

by Darren Murph posted May 12th 2008 at 8:06PM

We've seen some pretty far-fetched efforts meant to capture the sun's rays and convert 'em into energy, but this one holds a special place in our hearts. Rather than consuming acres upon acres of desert land or simply placing a plethora of panels atop some roof, ZM Architecture has an idea that would land a slew of large lily-shaped solar panels in the River Clyde. After winning the International Design Awards Land and Sea Competition, the concept has been passed on to the Glasgow city council in hopes of a trial going forward in the near future. Essentially, energy gathered by the discs would be transformed and exported to the national grid, and integrated motors could rotate the pads in order to "follow the sun for maximum output." Just gotta watch for those sunbathers sure to swim over and kick back on a panel of their own.

[Via Inhabitat]

Read - BBC report
Read - IDA winner report

E-Fuel's Micro Fueler creates Ethanol from sugar in your backyard

by Darren Murph posted May 9th 2008 at 10:05AM

Far from being the first at-home biofuel kit we've seen, E-Fuel is hoping to target consumers with a hankering for fueling up their vehicle with homegrown goodness. The Micro Fueler claims to be the first backyard Ethanol brewer made specifically for use at one's abode, and according to the outfit's CEO, the premise behind it is quite simple. By mixing water, sugar and yeast, individuals can receive E100 Ethanol in a matter of hours. More specifically, it's noted that a gallon of fuel can be derived from ten gallons of sugar, and while that may not sound like the most efficient conversion rate in the world, the company is quick to point out that costs can be lowered via federal, state and local credits along with carbon trading coupons. Those eager to start fueling up before they even leave the house can order one now for $9,995, though we're told not to expect shipments until Q4.