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
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→

Is Wind Power Reliable? Capacity Credit of Wind Energy
Posted by: Denis Stephens | Comments (5)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→