Western Mail

Gas power stations before eco alternativ­e

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MOST folk appreciate that power plants, with the exception of hydro, tidal, wind and solar, are totally dependent on steam power as a means to drive the generators – obviously it follows that water and heat are a basic necessity for such power stations to function.

Needless to say, we all appreciate that dirty coal-fired power stations belong to another era and should all be replaced globally to reduce atmospheri­c pollution, especially those in countries such as China and India. Currently the modern gas-fired power station of the CCGT variety, although using fossil fuel, is far cleaner that its coal cousin, being much cheaper and quicker to build than the eye-watering cost of a nuclear plant. For example, Hinkley Point, on the Somerset coastline, is heading for over £30bn and is woefully overdue – guess what that is doing to your power bill, dear reader.

Until realistic eco-friendly means of generating electricit­y are available our political representa­tives should be pushing for CCGT generation, coupled with a strategy of preheating the water for the necessary steam using geothermal energy. This would greatly reduce fossil fuel usage to a minimum and thus the total scheme would be a very ecofriendl­y package, offering security of supply and with the end user enjoying far cheaper power bills. The government is pushing heat pumps which employ heat from the air or ground, so why are they not pushing for geothermal energy for CCGT power stations – perhaps it is beyond their thinking and understand­ing?

Looking toward the near future then, the government should be seriously considerin­g orbital power stations, as apart from launching into orbit, would offer eco-friendly energy – please recognise we have had television from space for over 30 years, and now that rocket launch costs have come down the technology is no longer in the realms of science fiction, and we could be enjoying energy from space in about a decade – recognisin­g that nuclear

fusion is the holy grail of power generation, as the late Professor Stephen Hawking observed.

Dave Haskell Cardigan

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