Every day there are news reports that highlight spiraling energy costs, accelerating energy consumption, serious concerns over fuel security, and fears that oil production may soon decline, all set against a background of global warming and the devastating impact of climate change. The author emphasizes that we need to use renewable energy technologies on a much wider scale to produce heat and electricity, and argues that if action is taken immediately it could make an enormous difference in helping to meet CO2 reduction targets. He demonstrates how by installing a renewable energy technology...