Merge pull request #295 from bknueven/negative_fixed_costs

Allow for negative fixed minimum production costs
grid-parity-exchange · Nov 2, 2022 · 9713dbd · 9713dbd
2 parents d5633c8 + 2ada9c8
commit 9713dbd
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/egret/model_library/unit_commitment/params.py b/egret/model_library/unit_commitment/params.py
@@ -1266,9 +1266,9 @@ def power_generation_piecewise_points_rule(m, g):
     # has to have lower bound of 0, so the unit can cost 0 when off -- this is added
     # back in to the objective if a unit is on
 
-    model.MinimumProductionCost = Param(model.SingleFuelGenerators, model.TimePeriods, within=NonNegativeReals, initialize=_minimum_production_cost, mutable=True)
+    model.MinimumProductionCost = Param(model.SingleFuelGenerators, model.TimePeriods, within=Reals, initialize=_minimum_production_cost, mutable=True)
 
-    model.MinimumFuelConsumption = Param(model.FuelSupplyGenerators, model.TimePeriods, within=NonNegativeReals, initialize=_minimum_fuel_consumption, mutable=True)
+    model.MinimumFuelConsumption = Param(model.FuelSupplyGenerators, model.TimePeriods, within=Reals, initialize=_minimum_fuel_consumption, mutable=True)
 
     ## END PRODUCTION COST CALCULATIONS