Bug in Hydro Pumped storage in energy balance constraint

[sourabhdalvi]

The time index in the constraint for powerin_var is 1 which should be t

HydroPowerSimulations.jl/src/hydro_generation.jl

Lines 603 to 613 in d774fe6

	constraint[name, t] = JuMP.@constraint(
	container.JuMPmodel,
	energy_var[name, t] ==
	energy_var[name, t - 1] +
	PSI.get_parameter_column_refs(param_container, name)[t] *
	multiplier[name, t] +
	(
	powerin_var[name, 1] -
	(powerout_var[name, t] + spillage_var[name, t]) / efficiency
	) * fraction_of_hour
	)