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Table 7 Electrical infrastructures required for the PV-Wind-PHES energy system, together with the cost estimation

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   3,460,000 e
Transf. 24 MVA 20–66 kV PV 800,000 e
Transf. 18 MVA 6–66 kV PHES 600,000 e
Transf. 10 MVA 66–23 kV Paranal 300,000 e
10-km cable line PV-Paranal 800,000 e
12-km cable line PHES-Paranal 960,000 e