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Table 6 Assumed PHES investment cost

From: A case study of a procedure to optimize the renewable energy coverage in isolated systems: an astronomical center in the North of Chile

Total 23,310,000 e 100%
Hydraulic sub-system 8,420,000 e 36%
 Penstocks 1,500,000 + 2,420,000 e 17%
 Reservoirs 2 x 1,400,000 e 12%
 Water intake/valves 700,000 e 3%
 Water supply 1,000,000 e 4%
Electromechanical sub-system 9,830,000 e 42%
 Turbines 1,200,000 e 5%
 Generators 850,000 e 3.5%
 Pumps and motors 4,250,000 e 18%
 Control system 1,200,000 e 5%
 Transport/installation 1,930,000 e 8%
 Engineer 400,000 e 1.5%
Civil works 3,260,000 e 14%
 Central building 1,260,000 e 5%
 Access roads 2,000,000 e 9%
Engineer and reserve 1,800,000 e 8%