The Californian energy provider Commonwealth Energy Corp has launched a green energy scheme called Green Smart. The scheme will provide customers with the option to buy power from renewable sources such as wind, solar, geothermal, hydro and biomass.

The company has set up two schemes. Green Smart 100 and Green Smart 50. The first allows customers to purchase all their power from renewable sources. The second mixes 50 per cent renewable electricity with 50 per cent from other sources.

Today, around 11 per cent of California’s electricity is generated by renewable sources.