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Invest in micro hydro power plants

Principle

 

Micro hydro power is the small-scale harnessing of energy from falling water. Hydraulic power can be captured wherever a flow of water falls. The vertical fall of water, known as the “head”, is essential for hydropower generation (fast-flowing water on its own does not contain sufficient energy for useful power production). Hence, two quantities are required for production of hydropower: a Flow Rate of water and a Head. The capacity of a micro hydro power plant is usually between 20 and 500 kW.

Scheme of a micro hydro power plant

Case examples: micro hydro power in a drinking water service

Turbines can be installed in a drinking water net-work where the water flow is constant and when reduction of pressure in the network is needed (or possible). It has to be carefully monitored and regulated, depending on flow and pressure in the network. The system may operate continuously or not.

 

Examples of turbines installed and operated by Veolia:

Case examples: micro hydro power in a sewage service

When treated sewage effluent flow and net head at the outlet of a waste water treatment plant are sufficient, it is possible to install a turbine to recover the water energy and produce electricity.

All turbines can be used for a large range of flow rates. Usually, turbines have high efficiency (yield 85% - 90%), and the higher the discharge flow rate, the better the yield. Turbine technology depends on the water head.

Examples of turbines installed and operated by Veolia: