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Along rivers or streams, at the foot of hills and mountains with ponds or lakes, and at the mouths of bays and inlets where there are tides.

Hydroelectric plants operate on the basis of gravity moving water downward. So the requirement for hydroelectric power is water and a difference in height, altitude or depth.

Most Hydroelectric plants are located on rivers and used dams to provide the difference in height.

In some cases, hydro plants have been built at the foots of hills or mountains that had lakes on them at higher levels. If the difference in altitude is sufficient, a small flow and a small power plant can produce an impressive amount of power.

It is possible to get hydroelectric power from the movement of water without a dam, and this is done in rivers with sufficient current, but where damming the river would be too destructive to the land or things on the land. It is also done in places with tidal flows that are sufficiently energetic.

Micro-hydroelectric sites can even be small streams, if the water flow is sufficiently reliable.

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15y ago

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