Common single-stage, centrifugal Pumps as Turbines are a very versatile family of devices suitable for a large variety of flow rate and head conditions. However, these machines can have poor efficiency when used at sites with low flow and high head where traditionally a Pelton turbine would be the preferred choice.
Instead, for those locations Easy Hydro can design and supply a multistage Pump as Turbine which consists of a number of impellers arranged in series. By distributing the head drop across multiple impellers, the turbine can therefore run in a flexible and efficient way at just a fraction of the price tag of a custom-made Pelton wheel.
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