|
|
EXAMPLE LETTER FOR NAMIBIA AND SOUTH AFRICALETTER FOR PUBLICATION Dear Editor, SOLAR, NOT NUCLEAR Regarding "Most IOL readers want to go nuclear" (2007-01-19), there is absolutely no need for nuclear power in Namibia or South Africa since there is a simple mature technology that can deliver huge amounts of clean energy without any of the headaches of nuclear power. I refer to 'concentrating solar power' (CSP), the technique of concentrating sunlight using mirrors to create heat, and then using the heat to raise steam and drive turbines and generators, just like a conventional power station. It is possible to store solar heat in melted salts so that electricity generation may continue through the night or on cloudy days. This technology has been generating electricity successfully in California since 1985 and currently provides power for about 100,000 Californian homes. CSP plants are now being planned or built in many parts of the world. CSP works best in hot deserts and, of course, these are not always nearby! But it is feasible and economic to transmit solar electricity over very long distances using highly-efficient 'HVDC' transmission lines. With transmission losses at about 3% per 1000 km, solar electricity may be transmitted from the Namib desert to anywhere in Namibia or South Africa. A large-scale HVDC transmission grid has also been proposed by the wind energy company Airtricity as a means of optimising the use of wind power throughout Europe. The potential is absolutely massive. Less than 1% of the world's hot deserts could produce as much electricity as the world currently consumes. A recent report from the American Solar Energy Society says that CSP plants in the south western states of the US "could provide nearly 7,000 GW of capacity, or about seven times the current total US electric capacity" (emphasis added). There is similar huge potential in Namibia and South Africa. In the 'TRANS-CSP' report commissioned by the German government, it is estimated that CSP electricity, imported from North Africa and the Middle East, could become one of the cheapest sources of electricity in Europe, including the cost of transmission. That report shows in great detail how Europe can meet all its needs for electricity, make deep cuts in CO2 emissions, and phase out nuclear power at the same time. Further information about CSP may be found at www.trecers.net and www.trec-uk.org.uk . Copies of the TRANS-CSP report may be downloaded from www.trec-uk.org.uk/reports.htm . The many problems associated with nuclear power are summarised at www.mng.org.uk/green_house/no_nukes.htm . Sincerely, [Your name] [Email address], +44 (0)[phone number], Last updated: 2007-03-26 (ISO 8601) |