Wednesday, October 19, 2011

Case Western Researchers Make Fiberglass Windmill Blades As Long As Two (and a Half) Football Fields



The pace of technology increases in fiberglass technology is matched, perhaps, by only advances in green tech. And when the two industries align, things can get pretty awesome.

A recent report from MSN lists some advances made by researchers at CAse Western in Cleveland, OH.

Fatigue tests show the reinforced polyurethane composite lasts about eight times longer than epoxy reinforced with fiberglass. The new material was also about eight times tougher in delamination fracture tests, according to the researchers.

The researchers expect to make blades that are 250 meters long, by 2020. To give you an idea, maybe, of that ridiculous size: picture a full football field, then picture another one, then picture half of another one. That's how long the windmill blades will be.

The only expected downside of these huge strides in fiberglass and power generation technology are the usual ones, the NIMBYs. (NIMBY stands for "Not in my back yard.") Of course, I wouldn't necessarily want a gigantic windmill in my backyard, but that seems pretty unlikely. Seeing giant windmills in the distance would actually make me proud of my home area, that it wants to invest in green tech and generating power in a sustainable way. But only time will tell how well implemented Case Western's fiberglass windmill tech becomes.

Monday, October 17, 2011

The SIC Power Grid of Chile

There’s some unfortunate news out of Chile this week. It looks like the South American nation is facing extended power shortages due to a crushing drought affecting the country. (Remember, south of the equator it’s the opposite season.) Since a good amount of Chile’s industrial power generation comes from hydroelectric plants, the draught is affecting the country in several very bad ways.

This power shortage could have bad effects for the rest of the world, too. Chile is the world’s leading producer of copper — it makes almost a third of the world’s supply. Though the government has said the power shortage would leave the country’s copper mines unaffected, a power shortage should cause infrastructure problems and price increases that have tertiary affects on the economy.

The power shortage is so bad that the government is thinking of instituting a power rationing plan — only the third time the government’s intervened over the last fifteen-odd years. Reservoir levels are at a pitifully low level, and a power-rationing move could reduce as much as 5% to 10% of the country’s power generation.

The main primary industrial power generators supplying energy to the drought-affected SIC power grid are Empresa Nacional de Electricidad SA (EOC, ENDESA.SN), AES Corp. (AES) through its Gener SA (GENER.SN) unit, and Colbun SA (COLBUN.SN).