A TED Talk about the reality of renewables set the cat amongst the pigeons – in my mind at least. Most people are unaware of the energy intensity of fossil fuels vis-à-vis renewals whether biofuels, solar or wind power which means that the facilities to produce the latter are so much larger.. Furthermore, renewables such as solar and wind power are subject to the vagaries of the weather as well as the diurnal cycle. These factors confound the issue of reliable 24/7 power requiring alternative energy sources such as batteries, open [or closed] cycle gas turbines or pumped storage schemes to meet such shortfalls.
Main picture: The future blight on the landscape. Wind turbines on all available land in windy regionsContinue reading