Introduction:
"Renewable energy is derived from natural processes that are replenished constantly. In its various forms, it derives directly from the sun, or from heat generated deep within the earth. Included in the definition is electricity and heat generated from solar, wind, ocean, hydropower, biomass, geothermal resources, and bio fuels and hydrogen derived from renewable resources. Present renewable energy sources supply about 18% of current energy use and there is much potential that could be exploited in the future
Renewable energy is energy generated from natural resources. climate changes concerns coupled with high voltage prices, peak oil and increasing government support are driving increasing renewable energy legislation, incentives and commercialization . While there are many large-scale renewable energy projects and production, renewable technologies are also suited to small gris off applications , sometimes in rural and remote areas, where energy is often crucial in human development. Some renewable energy technologies are criticized for being intermittent or unsightly, yet the market is growing for many forms of renewable energy.
In response to the G8S call on the IEA for "guidance on how to achieve a clean, clever and competitive energy future", the IEA reported that the replacement of current technology with renewable energy could help reduce CO2 emissions by 50% by 2050.
The main renewable energy techniques are as follows
· Wind power
· Bio fuel
· Geo thermal energy
· Bio mass
· Wave power
· Tidal power
