description: Least-cost dispatch of a generator fleet against an hourly load.

dimensions:
  snapshot:
    description: dispatch periods
    dtype: int
    ordered: true
  generator:
    description: generating units

parameters:
  p_max:
    description: installed capacity
    dims: [generator]
  load:
    description: demand to be met
    dims: [snapshot]
  cost:
    description: marginal cost
    dims: [generator]

variables:
  p:
    description: output of a generator in a snapshot
    dims: [snapshot, generator]
    where: "p_max > 0"
    bounds:
      lower: 0
      upper: p_max

constraints:
  power_balance:
    dims: [snapshot]
    expression: sum(p, over=generator) == load

objective:
  sense: minimize
  description: total cost of generation over the horizon
  expression: sum(p * cost)