November 18, 2006

spotlight on VanadiumA big wind turbine or array of solar panels is all very well, but you need to store the power you generate, else its wasted. Battery technology has barely advanced in the last century. The base standard is still lead-acid, but that may be about to change.
Although fuel cells will not take off any time soon because companies have not cracked the safe production of hydrogen, a new Vanadium battery has been launched which might change the economics of renewable energy and off-grid living. VRB Power Systems Inc. (www.vrbpower.com) of Vancouver makes large scale power storage units based on "flow" batteries.
»Keep reading 'New style battery'
November 15, 2006

Sher: secret science Amazing. A gizmo which sucks the air in, then sucks the water out of the air, and then spews out clean fresh water. 500 Gallons of it – a day. Every off-grid home should have one. Only problem is it'll set you back a cool $500,000 . FEMA have already bought two, and the US Army is said to be on the verge of buying many, because getting our boys pure water is one of the key logistics requirements of any operational planning.
The box o' tricks is from Aqua Sciences Inc, and the company says the high cost is justified because in the end it "only costs you $0.25 per gallon.” For those of us without an entire battalion at our command, however the price is still a little steep. The makers are working on a consumer model, but it won't be out any time soon.
»Keep reading 'Magic water harvesting machine'