green energy
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Poseidon floating power plant features wind turbines, location for Waterworld II
We've seen plenty of attempts to harness the movement of the sea for power, including underwater turbines and Searaser pumps, but those technologies are sadly unreliable. Denmark's Floating Power Plant has thought of that, however -- ingeniously outfitting its 350-ton Poseidon platform with wind turbines as well as the underwater variety, so it can harvest energy even when the sea is calm. As stability is a major concern, the company took design cues from oil rigs, so this bad boy should hopefully stay right-side-up even in the most perfect of storms. According to Inhabitat, the company is pegging energy costs between 10 and 15 Euro cents per kilowatt hour -- competitive for the continent. This thing is currently stationed off the coast of Lolland in Denmark, although with any luck they'll be all over the world soon enough, at which point we will use them as bases from which to launch our futuristic, dystopian undersea armies.
Stanford researchers harvest electricity from algae, unkempt pools become gold mines
While we've seen plenty of stabs at viable green energy, from underwater turbines to the Bloom Box, we're always up for another. Running along the same lines as Uppsala University's algae-based batteries, researchers at Stanford are generating electrical current by tapping into the electron activity of individual algae cells. The team designed a gold electrode that can be pushed through a cell membrane, which then seals around it. The cell, still alive, does what it does best (photosynthesis), at which point scientists harvest chemical energy in the form of electrons. According to Stanford University News, this results in "electricity production that doesn't release carbon into the atmosphere. The only byproducts of photosynthesis are protons and oxygen." Of course, the team has a long way to go before this is economically feasible, but who knows? Maybe there's an algae-powered OPhone in your future...
BMW commits to Megacity EV by 2013, will start by testing ActiveE all-electric 1 series next year
BMW's first all-electric regular series production vehicle, the Megacity EV, has now been set in stone and inserted into the company's roadmap for a commercial launch in 2012 or 2013. The Bavarian automaker has gone official with word that it plans to use its Leipzig assembly plant to produce the car and further notes that it'll feature a similar setup to the ActiveE concept (pictured above), which is set for field testing in 2011. Essentially a 1 series that feeds off the electric grid rather than the nearest diesel pump, the ActiveE runs off an array of lithium-ion batteries á la the well liked but recently troubled Tesla Roadster, and will serve as a test mule for refining the underlying technology. Generating up to 170bhp might not sound all that impressive, but it should be more than sufficient for the urban commuters these vehicles will be aimed at. Now we just need Mercedes and Audi to match that release schedule and the electric car should finally have its day in the mainstream sun.
The Bloom Box: a power plant for the home (video)
Those two blocks can power the average high-consumption American home -- one block can power the average European home. At least that's the claim being made by K.R. Sridhar, founder of Bloom Energy, on 60 Minutes last night. The original technology comes from an oxygen generator meant for a scrapped NASA Mars program that's been converted, with the help of an estimated $400 million in private funding, into a fuel cell. Bloom's design feeds oxygen into one side of a cell while fuel (natural gas, bio gas from landfill waste, solar, etc) is supplied to the other side to provide the chemical reaction required for power. The cells themselves are inexpensive ceramic disks painted with a secret green "ink" on one side and a black "ink" on the other. The disks are separated by a cheap metal alloy, instead of more precious metals like platinum, and stacked into a cube of varying capabilities -- a stack of 64 can power a small business like Starbucks. Now get this, skeptics: there are already several corporate customers using refrigerator-sized Bloom Boxes. The corporate-sized cells cost $700,000 to $800,000 and are installed at 20 customers you've already heard of including FedEx and Wal-mart -- Google was first to this green energy party, using its Bloom Boxes to power a data center for the last 18 months. Ebay has installed its boxes on the front lawn of its San Jose location. It estimates to receive almost 15% of its energy needs from Bloom, saving about $100,000 since installing its five boxes 9 months ago -- an estimate we assume doesn't factor in the millions Ebay paid for the boxes themselves. Bloom makes about one box a day at the moment and believes that within 5 to 10 years it can drive down the cost to about $3,000 to make it suitable for home use. Sounds awfully aggressive to us. Nevertheless, Bloom Energy will go public with details on Wednesday -- until then, check the 60 Minutes sneak peek after the break. [Thanks, Abe P.]
Ontario and Samsung seal $6.7 billion renewable energy deal
Need to know how much it would cost you and your town to generate 2,500 megawatts of pure green energy? Your wind and solar farm infrastructure costs will come to 7 billion CAD (just under 6.7 billion in US currency), which includes a 437 million CAD "sweetener" to get Samsung on board. Plenty of curmudgeons have emerged from the woodwork to trash the deal as costing above market prices, but this appears to be the largest venture of its kind, so we're not entirely sure "market prices" exist yet. For its part, Samsung will create 16,000 jobs in the area, 4,000 of them permanent, as it builds toward the stated goal of providing enough energy to fully power 4 percent of Ontario's population. [Thanks, Dan]
MIT researchers develop liquid metal battery for the grid and the home
We've see plenty of green power research over the years, from solar plants to underwater turbines , but relying on the sun or the sea for electricity is not without its challenges: the sun doesn't always shine, for instance, and sometimes the water is calm. A group at MIT led by professor Donald Sadoway is developing grid-scale storage solutions for times when electricity isn't being generated. Since these batteries are intended for the power grid instead of cellphones and Roombas, the researchers can use materials not feasible in consumer electronics -- in this case, high temperature liquid metals. Besides being recently awarded a grant from ARPA-E (Advanced Research Projects Agency, Energy) to put these things in green power facilities, MIT has just embarked on a joint venture with the French oil company Total to develop a smaller-scale version of the technology for homes and office buildings.
Searaser floating pump will use the ocean's waves to generate power
A twist on the idea of the underwater turbine, the Searaser also uses the motion of the ocean to generate power. The device consists of two independent floats that move with the waves, pumping out seawater as they do. The water can then be pumped inland for hydroelectric power, irrigation, or to hilltop reservoirs for later use. One unit should be able to power 470 homes, and a six-month preproduction trial is currently being planned. You know, as quirky energy solutions go, this one doesn't actually seem all that far-fetched. At the very least, it seems better than going Micro-Nuclear.[Via The Times]
