What is Hydropower?
How it works
Brief History
Efficiency and Cost
Advantages vs Disadvantages
About
hydropower
Efficiency and cost
Hydropower supplies about 10% of the energy we use.
Hydropower is some of the cheapest energy to generate per kilowatt hour @ $0.08, a lot less then most energy sources.
It's a renewable energy source, unlike fossil fuels it won't run out.
Pumed storage is a method for keeping water in reserve for when it other would not be available (just making energy unavailable to)
This helps promote guaranteed price and energy stability.
Advantages and disavantages