Fun facts about wind power
In 200 B.C., people in China and the Middle East used windmills to pump water and grind grain.
The first modern wind turbine was built in Vermont in the early 1940s.
Wind farms currently produce enough electricity to meet the needs of more than 600,000 families in the United States.
The largest wind turbine in the world, located in Hawaii, stands 20 stories tall and has blades the length of a football field.
An average wind speed of 14 miles per hour is needed to convert wind energy into electricity.
One wind turbine can produce enough electricity to power up to 300 homes.
Fun facts about biomass energy
Almost half of the renewable energy produced in the United States comes from biomass sources, li
ke wood and paper products.
In Iowa and Wisconsin, biomass energy from landfills and dairy farms is being used to make electricity.
In southern Iowa, a power plant is using a crop called switchgrass to make electricity.
Fun facts about hydro power