Who Pays For UK’s Alternative Energy Future?
The Lib-Tory coalition government plans to fix prices for electricity in an effort to persuade the private sector to invest in new, alternative, and low-carbon forms of energy generation. The aim of this price guarantee is to ensure the UK has the electricity generating capacity it needs while still meeting climate change targets. About a quarter of the ageing coal fired and nuclear power stations will reach the end of their operational life in the next ten years. Roughly half will have to go due tightening environmental regulations and many of Britain’s ageing nuclear plants have simply got to be decommissioned and shut down.
The government wants industry to build a new generation of power plants using low-carbon alternative technologies including renewable sources like wind, hydro or tidal, nuclear and clean coal and gas. Those private investors will expect some form of return on this investment, so a range of incentives will give those same investors the certainty they say they need. All forms of low carbon generation (including nuclear) will benefit from a feed-in tariff with long contracts and a guaranteed price for the electricity produced. There would be extra support for what are described as younger technologies like offshore wind and wave power but the government maintains that there will be no specific subsidy for the nuclear industry. Dis-incentives are also in place, such as support for the carbon price which will make it expensive to generate power using coal. An emissions performance target should also put the brakes on any new coal-fired electricity generation schemes. This new framework has been described as a once-in-a-generation chance to set energy policy for the next 20 years, promoting renewable power generation rather than the high-carbon alternatives. For once, both the politicians and the regulator (Ofgem) admit that there will be a cost involved in doing all this and guess who will pay for it?
Ofgem has estimated that bills could rise by as much as 25% over the coming decade while the price comparison website uSwitch reckons that domestic energy bills will rise by £500 a year. Even the Secretary of State, Chris Huhne, has come clean by admitting that the average electricity bill of £500 a year would rise by £160 a year over the next two decades (although he claims that the increase would be £190 a year if nothing is done). There is no alternative? Probably not in the short to medium term, but within 20 years ITER should come on line. This is an experimental Tokomak fusion reactor which uses magnetic confinement to control the hot plasma and is scheduled to be built in 2018. It’s hoped ITER will be the first such device to break even by getting more energy out than is put in. Nuclear fusion has many theoretical advantages over nuclear fission. It’s most definitely low carbon and has the potential to produce more energy. We would have a virtually inexhaustible supply of fuel from deuterium in seawater and unlike present day atomic fission plants, fusion produces no nuclear waste products.
ITER is experimental and it will take several years of testing using hydrogen before slowly moving to a deuterium and tritium mix that should achieve full power. If successful, the next step would be prototype fusion power plant maybe around 2030. Proving that fusion is entirely safe and economically viable would be the final and perhaps most difficult step.
Another potential route to nuclear fusion is Inertial Confinement which uses multiple lasers fired on a pellet of deuterium and tritium to heat the fuel to the necessary high temperature for fusion chain reactions to take place. Two facilities pursuing this method of achieving fusion are the National Ignition Facility operating now in California and Laser Mégajoule (LMJ) which is planned for France in 2012. Inertial confinement is much less efficient than Tokomak magnetic confinement, but a “fast ignition” device called HiPER is in the planning phase and should be ready around 2020.






