Wind farm turbines wear sooner than expected, says study
The analysis of almost 3,000 onshore wind turbines — the biggest study of its kind —warns that they will continue to generate electricity effectively for just 12 to 15 years.
The wind energy industry and the Government base all their calculations on turbines enjoying a lifespan of 20 to 25 years. The study estimates that routine wear and tear will more than double the cost of electricity being produced by wind farms in the next decade.
Older turbines will need to be replaced more quickly than the industry estimates while many more will need to be built onshore if the Government is to meet renewable energy targets by 2020. The extra cost is likely to be passed on to households, which already pay about £1?billion a year in a consumer subsidy that is added to electricity bills.
The report’s author, Prof Gordon Hughes, an economist at Edinburgh University and a former energy adviser to the World Bank, discovered that the “load factor” — the efficiency rating of a turbine based on the percentage of electricity it actually produces compared with its theoretical maximum — is reduced from 24 per cent in the first 12 months of operation to just 11 per cent after 15 years.
Au Québec, les éoliennes nous coûtent plusieurs centaines de millions par années pour produire une électricité dont nous n’avons pas besoin et qui sera ensuite revendue à rabais.
À ce scandale, rajoutez le fait que ces éoliennes ont probablement une durée de vie entre 12 et 15 ans…