Increasing economies of scale, more competitive supply chains and further technological improvements will continue reducing the costs of solar and wind power. The same factors will also boost the availability of these key renewable power sources at night and in varying weather conditions. With the right policies in place, the cost of electricity from solar...

Bioenergy is renewable energy generated from biological source materials, and includes electricity, transportation fuels and heating. Source materials are varied types of biomass, including food crops such as corn and sugarcane, non-edible lignocellulosic materials such as agricultural and forestry waste and dedicated crops, and municipal and livestock wastes. Key aspects of policies for bioenergy deployment...