In this time of ever growing energy costs, the technology of Pumped Storage Hydropower stations gets more and more interesting. PSH prevents the waste of the excess of energy produced during the night time by the traditional energy power stations, using it to pump water from a lower to an upper basin, and releasing it during the peak consumption time in the form of hydroelectric power.
This technology has been traditionally concentrated in some regions, with a high availability of water flows. With the closed-loop systems, it is possible to extend this solution also to not-so-rainy areas, and here is even more important to prevent dispersions of water.
The best possible efficiency of the reservoirs and the piping is provided by the application of geosynthetics and geomembranes, both for waterproofing and protecting the system..