Transcript Alternative Energy Sources

Non fossil fuel power production
International Energy Outlook 2011
Renewable Energy as Share of Total Primary Energy Consumption,
2008
Hydro-Wind-Solar Energy
Units of GWh
2008
2008 Capacity (GW)
2015
2025
2035
Hydro
3121
857
3781
4823
5620
Wind
210
212
710
1232
1462
Solar
13
14
87
155
191
• Hydroelectric
– Harvest water energy
– China, Canada, Brazil, and US
Power = Head x Flow x Gravity
• Wind
– Harvest wind energy
Power = 0.5 x Swept Area x Air Density x Velocity3
– China, US, Germany, and Spain
• Solar
– Harvest sun’s energy
– Europe, Asia, US
Energy = (mW/cm2) x (Area in cm2) 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
http://www.mhi.co.jp/en/discover/earth/technology/geothermal.html
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.
TOTAL PRODUCTION:
1533.7 GW
Worldwide production: 375,000 MW (2010)