Energy: Wind Turbines

Baroness Knight of Collingtree Excerpts

Tuesday 14th June 2011 Lords Chamber

Asked by

[Baroness Knight of Collingtree]

To ask Her Majesty’s Government what proportion of wind turbines in the United Kingdom currently operational or being built are expected to produce electricity at any one time.

[The Parliamentary Under-Secretary of State, Department of Energy and Climate Change (Lord Marland)]

My Lords, at any one time, most wind turbines in the UK will be producing electricity. There are a number of reasons why a wind turbine might not be generating electricity at a specific time. This, of course, includes maintenance and repairs to the turbines. The generation of electricity from wind farms varies according to the speed of the wind. Average wind speed varies by location and from day to day—and, for that matter, from year to year. The proportion of maximum output that UK wind farms have generated on average is known as the load factor. In 2009, the load factor for onshore wind was 26.9 per cent, and 33.7 per cent for offshore wind. Provisional figures indicate that for 2010 the load factor for onshore wind was just over 20 per cent, and for offshore wind it was around 30 per cent, due to lower wind speeds.

--- Later in debate ---

[Baroness Knight of Collingtree]

My Lords, is my noble friend confident that building wind farms is a good way of spending taxpayers’ money, not only because wind farms’ costs and subsidies are proving to be so enormous, but because claims for their efficiency have proved to be wildly exaggerated? Given that turbine operators now have to be paid £2.6 million a month to turn turbines off, because often their product is neither needed nor useable, how many more millions of pounds has he set aside to pay this bill in the future?

[Lord Marland]

I must say that it is jolly good fun being in government, particularly with the support of your own Benches. I think I also heard some cry from the other Benches. The noble Baroness asks an extremely valuable question. I suppose the answer is incumbent upon most noble Lords in this room. For 25 years, we have had no investment in the infrastructure of the energy system in this country. We are going to have to grab energy from every source we can, and that is what this Government are committed to doing. And it will cost. If you have been doing nothing for 25 years and not invested in infrastructure, of course it is going to cost. We regret that, but it is a fact of life.