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Is your solar surplus still worth anything?
With massive midday curtailment, the exported Spanish kWh is worth a few cents. Compare: surplus compensation vs battery vs load-shifting.
Surplus compensation used: €0.04/kWh (indicative average — wire to ESIOS hourly values); avoided kWh: €0.18/kWh. Battery gain = shifted kWh × value gap.
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With massive midday curtailment, the exported Spanish kWh is worth a few cents. Compare: surplus compensation vs battery vs load-shifting.