In hydro terms, flow discharge (usually referred to as “flow”, “flow rate” or “discharge”) means the flow of water. It is measured in cubic metres per second (m³/s).

The most important flow rates for a hydropower station are as follows:

  • unit flow, the flow discharge through each turbine; and
  • station flow, the total flow through all the turbines in the power station.

Published by hydrogray

Hydropower specialist

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