World's 10 Largest Renewable Energy Projects

From Scientific American, a slideshow of the world's 10 largest renewable energy projects.

The world is going to need 2 TW (terawatts, or million megawatts) of electricity in the next 40 years. The projects shown in this slideshow are producing electricity right now. They are:

1. Horse Hollow Wind Energy Center, Taylor and Nolan Counties, Texas (currently overtaken by the Roscoe Wind Complex 220 miles west of Dallas)
2. Lynn and Inner Dowsing Wind Farm near Skegness, Lincolnshire, England (now in second place behind the Horns Rev 2 project off Denmark)
3. Rance Tidal Barrage in Bretagne, France
4. SeaGen Turbine in Strangford Lough, Ireland
5. Solar Energy Generating Systems in Southern California
6. Olmedilla Photovoltaic Park in Olmedilla de Alarcón, Spain
7. The Geysers in Sonoma and Lake Counties, Calif.
8. Oy Alholmens Kraft in Pietarsaari, Finland (dry biomass-fired power plant)
9. Aguçadoura Wave Farm near Póvoa de Varzim, Portugal
10. China's Three Gorges Dam
11. (Bonus) Puente Hills in Whittier, Calif. (landfill gas recuperation plant)