The hon. Gentleman is absolutely right, and if he was here at the back end of last year when we debated the closure of Kellingley colliery, he will have heard me very much echo his sentiments.
At the end of 2015 there were already 490 operational wind farms in the UK with an install capacity of 8.3 GW. The Government estimate that in 2015-16, £850 million of direct support will go towards funding onshore wind farms. A fraction of that sum could deliver reliable, low-carbon, cost-effective renewable electricity that can react to changes in demand if it were diverted to more and reliable renewables, such as sustainably sourced biomass. I use the words “direct support” on purpose because the £850 million refers only to subsidies that are paid to those wind farms. The inherent failings of wind farms must be compensated by someone, which comes at a cost. If there is a risk that the wind will stop blowing, National Grid must ensure that it has sufficient capacity to mitigate that risk.
If a wind farm has a load factor of 30%, National Grid must make provision for generation for the other 70% of the time. If the new wind farm has to be built deep within our beautiful countryside, or out at sea where it is more expensive, National Grid has to pay for new transmission lines. That all comes at a cost, and those costs are paid by all generators, not just the wind farm developers that caused the problem. It is yet another hidden subsidy for wind power.
The notification of inadequate system margin that occurred on 4 November was a prime example of a problem caused by a lack of conventional capacity, because on that very still day, the wind was not blowing and it could not make up that capacity, despite all our investment into wind power. All generators—and ultimately all consumers—had to pay for balancing actions that National Grid had to take, at a cost of £2,500 per megawatt-hour. That is something like 50 times the usual cost of power and—at least in part—that was because when we needed our costly wind capacity, it simply was not available.
I warmly welcome the commitment made by the Minister last week when, in a written response to a parliamentary question from the hon. Member for Middlesbrough South and East Cleveland (Tom Blenkinsop), she promised that in the first half of 2016 the Government would publish research into those hidden costs, so that we can see the whole system costs of different renewable generation technologies, and that the findings will be used to inform policy decisions. I hope that is the first sign that future contracts for difference auctions will not simply unleash new waves of intermittent renewable technologies. More sensible, reliable renewable generation options are available to us, but the hangover from the previous Government and our coalition partner’s love affair with wind will suffocate those options unless we act.
Of course, the madness does not stop with the extra costs, because there is also a carbon problem. If a wind turbine has an availability of 30%, National Grid needs
either a vast number of other wind turbines spread all over the place in the hope that the wind will be blowing somewhere, or—this is more likely—a gas or coal station on standby to generate the rest of the time. We therefore subsidise a wind turbine to push fossil fuels off the grid, while simultaneously subsidising a fossil fuel power station to stay online and generate carbon dioxide for more than half the time when the wind is not blowing—you could not make it up, Madam Deputy Speaker. The same is true for offshore wind farms, albeit they have slightly higher availability.
In conclusion, I recognise that the Conservative Government cannot make up for the mistakes of the past with retrospective action. A deal is a deal, and existing onshore wind is here to stay. We cannot reverse the insane situation in which we banked our energy security on the vagaries of the weather, but we can put an end to the madness. We can stop all new investment in onshore wind, as we have promised to do, and we can think much more carefully about the case for investing in other intermittent technologies.
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