Archive for back up

This article written by:

Mark Duffield

Senior Account Manager

Contracts and Settlements

UK Transmission – Network Operations

National Grid

National Grid House

Warwick Technology Park

Gallows Hill

Warwick CV34 6DA

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Is Wind Power Reliable

 

The following is a commentary on David Milborrow’s article in “New Power UK/Issue 1/February 2009″.

 

As David says, you would not design a thermal power generating system which did not have built in reserve. He has answered his comment about those letter writers being unconcerned (or unaware) that there was a shortage of nuclear output during the cold snap in early January.   “Why should they have been concerned/aware?”   The system is designed for this. Read More→

Extract from full article http://www.claverton-energy.com/download/316/

See also http://www.claverton-energy.com/download/314/

(This technically numerate, evidence based article, shows that wind does not need any extra back up when it is not windy, due to the blindingly obvious fact that the existing power stations can simply be started – no new ones have to be built.  Why this obvious fact escapes other commentators remains a mystery. 

Millborrow shows that the extra costs of spinning reserve to cope with the greater variability of wind power is around a mere £7.6/MWh, with 40% wind and no capacity credit, or £5.8/MWh without. ie 0.76p/kWh -  0.58p/kWh.) Read More→