Use of pumped-storage electric power stations with underground downstream basins

Conclusions

An essential virtue of a PSS with an underground downstram basin consists in the possibility of constructing it in practically any region, since its location is not related with topographic conditions. The deep founding of the basins and power house of the PSS permit locating it under favorable geologic conditions in the greater part of the territory of our country. The construction of such PSS can be based on a standard design if the same capacities, heads, and daily energy production of a series of PSS of the given type are used. The combined construction of SPS, APS, and PSS permits creating a power system with an optimal structure of the generating capacities with a substantial decrease of expenditures for industrial facilities, housing, etc.

It is possible to locate PSS near maximum load centers which increases the stability of the power system and reliability of the electrical supply and quality of electric energy delivered to consumers with a decrease in expenditures for the construction of transmission lines. The location of PSS on seacoasts and near lakes opens prospects for the effective use of these bodies of water as the upstream basins of PSS.