Jonathon Porritt has personally invested in a portfolio of solar and hydro projects in Devon organised by the Totnes Renewable Energy Society (TRESOC).
Half of households are unaware that solar-generated electricity is cheaper than electricity purchased from utilities, according to a survey commissioned by Ikea.
Three former colliery sites in Nottinghamshire will soon be transformed into solar farms capable of generating enough electricity to supply 10,000 local homes.