tion Some people might claim that there is no real alternative to a new generation of nuclear reactors. However, combined heat and power units, which generate electricity, are already economical for large houses or blocks of flats and smaller units will be on the market next year. Local generation of electricity eliminates the enormous losses of wasted heat in electricity generation by fossil fuels nuclear reactors. turbines and solar cells on the roof can also provide home solutions and will become more economical as costs come down with mass production.