What is the most important thing to have happened to the United Kingdom in this decade? Brexit, right?
Well, maybe not. Looking back, future historians might just accord more significance to another recent development – the result of the latest government auction of contracts for new power generating capacity. Compared to Britain’s departure from the European Union, this might not seem that important, but it really is.
An auction is a process of price discovery, and what this auction revealed is that the price of offshore wind power has fallen to a record low. Reporting for the Telegraph, Jillian Ambrose sets out the key numbers:
“The contracts will grant offshore wind developers, including Dong Energy and Engie, a guaranteed revenue of just £57.50 per megawatt-hour of electricity produced in 2022/23. This is a sharp fall from the £74.75/MWh granted to Innogy and Statkraft’s Triton Knoll project, which will start up just one year earlier, and less than half the cost of turbines already producing power at around £150/MWh.”
Costs were always expected to fall, but not as far and as fast as that. The expectation was that offshore wind would remain significantly more expensive than onshore wind, gas-fired power and even nuclear power.
This upsets previous calculations – not least the decision to go-ahead with Hinkley Point C, a new nuclear power station, contracted to provide electricity at a cost of £92.50/MWh. Compared to the new normal for offshore wind this looks like truly appalling value for money.
In fact, it’s much worse than it first appears. Hinkley won’t start generating electricity until the second half of the next decade (assuming no further delays) – and will receive its guaranteed price for 35 years instead of the 15 years given to new renewable capacity (including offshore wind).
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