Hydro-electric Power
The use of water for electricity
Materials
Turbine
Electric Generator
Power Lines
Need a Penstock to convey the water to the turbine
Intake is also needed
Long Term Effects
Affects Migration Patterns for Fish
Size and Flow rates of the river could change
Raise the water levels
Increase erosion
Interesting Facts
One of the Oldest Power Sources
Hydroelectric Dams Can Be Tiny
Hydro Cost Less Than Most Energy Sources
Devices At The Dam Can Help Fish Move Freely Around The Dam
How Does A Hydroelectric Dams Work
Hydroelectric dams is built in a river or a lake where there is an elevation for where the dam is built. The water goes through the intake down the penstock causing the turbine to spin generating power for the generator which is making electricity from it. The generator is connected to power lines for the electricity to transfer to house, utilities, etc.
Plus & Minus on the Environment
Positive
Renewable Source (water)
Green
Safe
Negative
Could destroy fish's habitats
Can cause erosion
Affects fish migration
Kill Fish
Plus & Minus on the water
Positive
Demand Matching
Renewable
Negative
Could lead to floods
Low water supply
Limited reservoirs
Plus & Minus On Humans
Positive
Clean energy source
cost less
renewable
reliable
Negative
Expensive