Tariff Rates (Power Generation): How to Determine Tariff Rates for the Sale of Electricity

Constraints

The following constraints are used in this example:

  • bounds on variables

  • for $\text {period} \in \text {PERIODS}$ and $\text {type} \in \text {TYPES}$,

    \[ \Variable{Output[period,type]} = \Argument{min\_ level[type]} \cdot \Variable{NumWorking[period,type]} + \Variable{Excess[period,type]} \]

  • for $\text {period} \in \text {PERIODS}$,

    \[ \sum _{\text {type} \in \text {TYPES}} \Variable{Output[period,type]} \ge \Argument{demand[period]} \]

  • for $\text {period} \in \text {PERIODS}$,

    \[ \sum _{\text {type} \in \text {TYPES}} \Argument{max\_ level[type]} \cdot \Variable{NumWorking[period,type]} \ge (1 + \Argument{reserve}) \cdot \Argument{demand[period]} \]

  • for $\text {period} \in \text {PERIODS}$ and $\text {type} \in \text {TYPES}$,

    \[ \Variable{Excess[period,type]} \le (\Argument{max\_ level[type]} - \Argument{min\_ level[type]}) \cdot \Variable{NumWorking[period,type]} \]

  • for $\text {period} \in \text {PERIODS}$ and $\text {type} \in \text {TYPES}$,

    \begin{align*} \Variable{NumStartup[period,type]} & \ge \Variable{NumWorking[period,type]} \\ & - (\text {if period} - 1 \in \text {PERIODS, then }\Variable{NumWorking[period}-1, \Variable{type]};\\ & \quad \text {else }\Variable{NumWorking[}|\text {PERIODS}|,\Variable{type]}) \end{align*}