What we have to look forward to, should Greenies get their way

Huge blackout exposes vulnerability of world’s main copper supplier energy grid — MercoPress

This is what happens when the lights go out, just for two hours in this case. If the Greens in the West get their way, this is what we would be adapting to, not global warming.

“A massive power blackout on Saturday paralyzed crucial copper mines in Chile and darkened vast swaths of the country including the capital Santiago before energy started to be restored, officials said.

Energy Minister Rodrigo Alvarez said the cause of the blackout has not been definitively determined but he cited “oscillation problems” in two power lines and a failure in a computer system.”

Deputy Interior Secretary Rodrigo Ubilla said that the situation forced thousands in the capital to be evacuated from trains or subway cars. Similarly one supermarket in the capital had been looted, adding that police and authorities were providing security during the blackout.”

I am not saying this was the reason, but Chile has been bitten by the Wind Bug:

Chile’s Totoral Wind Farm, which provides low-carbon electricity to 20,000 homes and saves about 75,000 tons of carbon per year, was financed in part with a $61.5 million loan from the International Finance Corporation. The 46-megawatt wind farm, 300 km north of Santiago, was inaugurated months ahead of schedule in January 2010.

Chile bets on wind power  Sept 2009

“Although currently only 0.15 percent of Chile’s electricity is generated by wind power, the situation is expected to change over the next two years.

The 23 wind farms planned or being built in Antofagasta, Coquimbo, Valparaiso and Biobio will have a total installed capacity of 1,800 MW, the equivalent of 15 percent of the energy now being generated by conventional power plants.

The largest of the projects, according to El Mercurio, is the 500 MW Talinay wind farm. Located on a 7-mile-long strip of land bordering a highway 250 miles north of Santiago near the city of Ovalle, its 243 turbines will reduce carbon dioxide emissions by 54,000 tons per year, the equivalent of the amount released by 12,000 cars.”

Power oscillations from Wind Turbines

“Mentioned above mechanical oscillations as well as present of power converters manifest itself in influence on grid. The main symptom concerns deterioration of power quality. Recognized phenomena include voltage sags and flickers, main voltage drops caused by reactive power consumption, power oscillation in electrical transmission line, wide spectrum of harmonics.

The most significant meaning have the oscillations of generated power. This problem accompanies wind power plant both under normal and transient conditions. However, under transient conditions, such us faults, the range of oscillations is prominent.”

Eon-Netz Wind report 2005

“Large thermal power stations do not disconnect from the grid even following serious grid failures, instead they generally trip into auxilliary services supply and until then, “support” the grid. Wind farms, however, have so far disconnected themselves from the grid even in the event of minor, brief voltage dips. Experience shows that this can lead to serious power failures.”

As they say, go figure….. (Dennis Ambler)

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