Basics of Hydroelectric Power

Hoover Dam

Hoover Dam and Lake Mead

Bonneville Dam Spill Way

Columbia River Drainage System


Historical Growth of Hydroelectric power:

The Politics of the Three Gorges Dam

Does the world have the right to tell China how to deliver increased energy to its population?

Hydropower is a natural renewable energy source as it makes use of The Hydrological Cycle

Hydropower production is sensitive to secular evolution of weather; seasonal snowpacks, etc, etc. Long term droughts (10 years or so) seem to occur frequently in the West

About 30% of the hydropotential in the US has been tapped to date.

Why is Hydro so attractive?

Energy density in stored elevated water is high:

So one liter of water per second on a turbine generates 720 watts of power. If this power can be continuously generated for 24 hours per day for one month then the total number of KWH per month is then:

720 watts x 24 hours/day x 30 days/month = 518 Kwh/month.

For Just One Liter !!!

Scale of the turbines in big dams is very large:

Hoover Dam Turbine Room

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