By Ray Evans and Tom Quirk

The story of how a combination of green missionaries and vested interests have distorted and crippled the Australian electricity industry.

Evans and Quirk conclude:

“By 2020 annual electricity consumption in eastern Australia is estimated from NEMMCO data to be 347 Twh. If renewables are to provide 20 per cent, and no new hydro is to be permitted, electricity production from wind farms (or other renewable sources) must provide 53 TWh. Ignoring for the moment the insuperable problem of unpredictability, and assuming a Load Factor of 25 per cent, this will require a total of 27,000 MW of windmill capacity. Every bit of coastline, every mountain ridge, and much else that can be secured for windmills will have to be pressed into service to meet this target.

“The capital cost of wind power is considered to be $2000 per kW, and so an extra 26,000 MW will cost $52 billion. And back-up will be required. So in addition to new coal plant required to provide an additional 60 TWh, back-up generation of at least 23,400 MW will be required. All of this will have to be paid for by the electricity consumer. These numbers could not appear in any Commonwealth budget; no government could justify that sort of expenditure.

“On top of all this we have system stability problems created by widely dispersed power sources, spread over tens of thousands of square kilometres; whose output can vary dramatically as the wind gusts and dies down; that are connected to the main grid by long, weak transmission lines—a system operator’s nightmare. Such a transmission network, weak and unreliable as it will be, will cost at least $30 billion.”

For the full article see:

http://www.quadrant.org.au/magazine/issue/2009/3/the-high-price-of-PC-power