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pubblicazioni - Presentazione

Underground Hydro Pumped Storage Potential Assessment in Italy

pubblicazioni - Presentazione

Underground Hydro Pumped Storage Potential Assessment in Italy

Il presente lavoro riguarda la valutazione di tale tecnologia di accumulo sotterraneo idroelettrico, ottenibile mediante lo sfruttamento di invasi superficiali esistenti e di nuovi invasi sotterranei a forma di tunnel elicoidale, costruiti mediante talpe meccaniche TBM, a circa 700 m di profondità.

The increasing share of non-programmable renewable energy plants is causing several problems for the exercise of the electricity grid. The pumped hydro constitute a solution, fulfilling the role of large size energy accumulation systems to balance loads, adjust the frequency, generate reserves and integrate more renewable energy units.The scarcity of topographic gradients to be used without constraints, suggests the evaluation of an “underground pumped hydro” scheme, obtained through the exploitation of cavern reservoirs built several meters below the surface.

This work deals with the assessment of the pumped underground hydro storage technology hydroelectric, obtainable by exploiting existing surface reservoirs linked with a spiral underground reservoir built by Tunnel-boring machines (TBM), at about 700 m depth.The storage Italian potential is then calculated, taking into account lithographic charts and protected areas.Some estimates of the costs and their revenues are assessed to guess and financial feasibility.

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