Non fossil fuel power production Renewable Energy as Share of Total Primary Energy Consumption, 2008 International Energy Outlook 2011

Hydro-Wind-Solar Energy Hydroelectric – Harvest water energy – China, Canada, Brazil, and US Wind – Harvest wind energy – China, US, Germany, and Spain Solar – Harvest sun’s energy – Europe, Asia, US Units of GWh Capacity (GW) Hydro Wind Solar Power = 0.5 x Swept Area x Air Density x Velocity 3 Power = Head x Flow x Gravity Energy = (mW/cm 2 ) x (Area in cm 2 ) x (Time in sec)

Geothermal Energy Natural heat of the earth which is present in the Earth's core, mantle and crust. Worldwide production: 10,716 MW (IGA) Electricity generated by geothermal energy meets the needs of 60 million people

Biomass Biomass is solar energy stored in organic matter. As trees and plants grow, the process of photosynthesis uses energy from the sun to convert carbon dioxide into carbohydrates. Carbohydrates are the organic compounds that make up biomass. Worldwide production: 65,000 MW (2010)

Nuclear Energy of an atomic nucleus, which can be released by fusion or fission or radioactive decay. Use of sustained nuclear fission to generate heat and do useful work. Worldwide production: 375,000 MW (2010) TOTAL PRODUCTION: GW