Car Engine Fuel Types and their Environmental Impacts

Cleantech Solutions Blog

The electricity generation capacity of renewable resources reached an estimated 240 gigawatts worldwide in 2007. Renewable resources represent 5 percent of global power capacity and 3.4 percent of global power generation. Renewable energy supplies 18 percent of the final energy consumption worldwide, counting traditional biomass, large hydropower, and “new” renewables (small hydro, modern biomass, wind, solar, geothermal, and biofuels).

Traditional biomass, primarily for cooking and heating, represents about 13 percent and is growing slowly or even declining in some regions as biomass is used more efficiently or replaced by more modern energy forms. Large hydropower represents 3 percent and is growing modestly, primarily in developing countries. New renewables represent 2.4 percent and are growing very rapidly in developed countries and in some developing countries. Clearly, each of these three forms of renewable energy is unique in its characteristics and trends.

Biomass fuel sources are readily available in rural and urban…

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