Discribe the natural condition needed for generating hydroelectricity
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I believe the days of large dams like Hoover dam are over due to environmentalists and fish advocates. The “new” way is run-of-the-river hydro.
In this type hydro, the river still flows as much as possible like it did before the project. It only requires a pond of 10 or 15 feet depth with a “weir” at the top of the system to make the water flow down the penstock. The head is whatever the terrain allows, obviously a steep mountain with lot of rapids would make heads of 100 ft. or more available. Looking at optimum head vs. flow charts, a Francis turbine would be best on high flow, medium head. Kaplan and Pelton would be for other conditions, like high head-low flow for a Pelton.
There is a ski resort in BC Canada that has a 7.5 MW plant that will run the entire resort, ski lifts, etc. of off the run of river hydro plant. Look it up on the internet.
In this type hydro, the river still flows as much as possible like it did before the project. It only requires a pond of 10 or 15 feet depth with a “weir” at the top of the system to make the water flow down the penstock. The head is whatever the terrain allows, obviously a steep mountain with lot of rapids would make heads of 100 ft. or more available. Looking at optimum head vs. flow charts, a Francis turbine would be best on high flow, medium head. Kaplan and Pelton would be for other conditions, like high head-low flow for a Pelton.
There is a ski resort in BC Canada that has a 7.5 MW plant that will run the entire resort, ski lifts, etc. of off the run of river hydro plant. Look it up on the internet.
ak9844407:
It's too long
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