Non-renewable energy comes from sources that are finite and cannot be naturally replenished in a human timescale i.e. coal, oil or natural gas. Renewable energy covers all electricity generated from sources that can be renewed naturally and quickly, such as solar, wind, geothermal, biomass, biogas, hydro and wood pellet. Under the heading of renewable electricity, Green power is very specific and only generated from resources with a zero or near-zero carbon footprint, such as solar, wind, and geothermal. There is a limited but growing market for power from true green sources but there are suppliers that specialise in that area of the market. If this is relevant, and especially if you value Corporate Social Responsibility (CSR) credentials...Please contact us for more information.