Environmental Engineering Reference
In-Depth Information
The world's largest tidal turbine is
operating off the coast of Ireland.
also just swim around it.
Scientists hope to ind
ways to reduce other
worries about the newer
forms of water power.
Worldwide Effort
The strong interest in
water power irst grew
during the 1970s. At
the time, the price of oil
rose quickly. Companies
and countries began to
study if water power
could be cheaper to use.
Then, when oil prices
fell, interest in water
power dropped, too.
Now, though, people are once again exploring the use of
water power. They realize that oil, coal, and natural gas will
one day run out. They also know that water power will help
cut down on greenhouse gases. In 2009, in countries around
the world, more than 300 water power projects were started or
planned. Some tested new water power systems, while others
focused on generating electricity for homes and businesses.
