Another type of turbine that can be used is a pico turbine. Although more of a size classification than a design type, these are small turbines generally in the region of a few hundred or a few thousand watts and have a very specific application. Soar Hydro also produces these types of turbine, and describes them as follows:

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“Pico Hydro turbines are ideal for running Remote terminal units (RTUs), SCADA systems, monitoring equipment, sump pumps, lighting, blowers, fans, and pressure management devices. Systems are configured 24VDC with a maximum power output of 300 Watts. Generated power can be used as it is generated and excess is stored through a sophisticated battery charging system. When fully charged, the turbine automatically shuts down to prolong system life.” (21)

 

These are specifically designed for powering systems in a similar way to small wind turbines and solar panels powering remote weather stations. They provide enough power for a limited number of operations including collecting and sending data giving remote off grid sites the power needed to operate. They do not extract all the energy within the water, but enough to power the desired systems and can work in conjunction with a battery.