CAISO Costs

Cost (cents per kwh) to meet 100% of electricity demand with different combinations of solar PV (bottom axis, megawatts) and storage (megawatt-hours), with battery-charging gas turbines as a buffer.

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Assumes $1100/kw solar PV, $475/kw-h battery, $1000/kw gas turbine. See Appendix for all cost assumptions.

Chart: Brian Potter Source: Author's calculations