Most hydropower plants are built through federal or local agencies as part of a multipurpose project. Hydroelectric plants have a preventive start up cost, but once it is built the cost to maintain it is low. ... Birds in the area don't usually see the blades for the windmills and fly straight into them. ... The wind is the hardest one to find a place for, there are already windmills in place where ever there is a good location to put them in. ...

• Word Count: 1458
• Approx Pages: 6
• Grade Level: High School

Engineers have maximized the potential of high wind in West Texas and generate electricity using wind turbines (windmills) to provide a sustainable source of energy. Moving air turns the blades of large windmills or generators to make electricity, or to pump water out of the ground. ... China built four large hydropower plants upstream in 1992 to 2003, which created flooding problems for other countries that also have access to the Mekong River downstream like Laos, Vietnam and Thailand. ...

• Word Count: 1455
• Approx Pages: 6
• Grade Level: Undergraduate

When dams are built and filled with water, the wildlife is moved into a new habitat, which can cause high mortality rates with any species.2 ______________ 1. ... "Windmills have been used to grind grain, pump water, and power small electric generators."8 The reliability and efficiency of wind turbines have improved; the cost of wind-generated electricity has come down. ... Windmills would get in the way of the migration of birds, and many of them could be killed. ...

• Word Count: 1560
• Approx Pages: 6
• Grade Level: High School