Table 2 Energy storage data.

From: Integrated optimization of energy storage and green hydrogen systems for resilient and sustainable future power grids

 

Pumped hydro (PH)

Battery

CAES

Supply duration (hour)

8h

2h

12h

Charging efficiency

0.87

0.95

0.85

Discharging efficiency

0.85

0.95

0.7

Average daily levelized cost

130 $/MWh

230 $/MWh

111 $/MWh

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