Anomaly in price-setting behaviour by curtailment

[mabijkerk]

In this scenario, price-setting behaviour occurs that I can't explain:

• At hour 9, the merit_order_price_curve is set at 2.4820896602739797 euros/MWh
• In that hour, the input of energy_flexibility_curtailment_electricity is 2602.7617310625833 MW
• I would therefore expect the electricity price to be set at 0.0 euros/MWh
• Additionally, there doesn't seem to be a producer/consumer whose marginal costs/willingness to pay is equal to the electricity price in that hour
• The one producer producer that comes close is the energy_power_hydro_mountain at 2.4920896602739795 euros/MWh, which strangely enough is almost exactly 0.01 euros higher than the electricity price

@antw would you have time to look into this and figure out what's going on? It may be that I have missed something that explain this behaviour.

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