Saturday, October 2, 2010

Renewable energy production goes down in UK

The UK has suffered a second fall in renewable energy production this year, raising concern about the more than £1bn support the industry receives each year from taxpayers.

The drop in electricity generated from wind, hydro and other clean sources in the first half of 2010 could also be a setback to the coalition government's promise that the UK could help lead a "third industrial revolution" and create a low-carbon economy.

The DECC today said lower than expected wind speeds and rainfall led to a 12% fall in renewable electricity generated between April and June, compared to the same period in 2009. This setback follows a smaller but still notable decline between January and March, again compared to last year.

With a sharp drop in output from nuclear power stations as well, greenhouse gas emissions from each unit of electricity generated will inevitably have risen, at a time when the UK has pledged to cut such pollution, and is pressing other countries to do the same.

The renewable energy figures are likely to prompt criticism of the government's energy policies from all sides. Supporters want ministers to increase funding for green industry so more wind farms are built, reducing the risk of seasonal set backs; critics will say the government should instead increase support for energy efficiency, nuclear power or cleaner forms of burning fossil fuels.

With speculation mounting that the government is considering cutting the feed-in tariff subsidy for small-scale renewable equipment, 69 industry figures and other experts will tomorrow publish an open letter to the government warning such a move would "shatter" confidence and put future investment "in mortal peril".

However, Robert Gross, director of the Centre for Energy Policy and Technology at Imperial College London, said it was too soon to react to the drops in renewables, pointing out that other electricity sources were also vulnerable to short-term problems, such as fluctuations in supply and prices of fossil fuels and technology shutdowns at nuclear reactors. Risks were not likely to arise until renewable sources made up more than 25-35% of electricity supply, when the UK would need back up from one or more of the several options: new gas plants, better connections to mainland Europe, better demand management so more electricity was used at off-peak times, and better technology to store surplus energy for peak times, said Gross.

The DECC also suggested the government was not yet planning to change its policies, which included direct support of £265m from 2000-2009, and about £1bn indirect subsidies for large installations through 'renewable obligation certificates' in 2008-9.

"Wind energy is home-grown, low-carbon and adds diversity to our energy mix," said a department statement. "The intermittent nature of wind means that we do need alternative back-up generation, for when wind speeds drop. But for most of the time it will be possible to generate significant amounts of electricity from wind, thereby reducing the amount of fossil fuels we need to consume."

The latest energy statistics for the second quarter of 2010 show total energy production in the UK was 9.2% lower than the same period last year, while final energy consumption was 1.8% higher. Among the different fuels, output from oil and coal fell, while only gas increased its output, by 7.1%. It was a similar picture for electricity alone: coal power stayed steady at about 23% of electricity supplied, nuclear output fell by 23% to 15.8%, and gas production rose by more than 10% to over half of all electricity.

Chris Huhne, the climate secretary, repeatedly chastised the previous government for putting the UK in 25th place among the 27 European Union countries for renewable energy, a ranking based on 2008 figures.

However, last week RenewableUK, the industry lobby group, said the UK was "on course" to meet its commitment to reach 15% of all energy – including at least 30% of electricity – from renewable sources by 2020.

Responding to today's figures, a spokesman for the group said: "Clearly we need to deploy more renewable devices if we expect to get more in the energy mix. Hydro and wind power will vary from year to year, as do other technologies, but we know that they can and do contribute significant amounts of electricity.

"Hydro is one the world's oldest and most widespread energy technologies, and wind power has shown its mettle across Europe. If we don't write off nuclear energy on the basis of [its latest] fall, why would we write off hydro, or even wind, which is now the UK's largest source of renewable energy?"

Louise Hutchins, climate campaigner for Greenpeace, said: "At the moment it [renewable energy] is a very small share in electricity and small fluctuations in weather can have an impact on the percentage of supply. When we have a lot more renewable energy there will be a lot more stability."

Source : http://www.guardian.co.uk/environment/2010/sep/30/uk-renewable-energy-production-drops


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