public GasfiredPowerPlantResponse(Fuels fuels, PowerPlant powerPlant) : base(fuels, powerPlant)
 {
 }
 public WindturbinePowerPlantResponse(Fuels fuels, PowerPlant powerPlant) : base(fuels, powerPlant)
 {
 }
 public PowerPlantResponse(Fuels fuels, PowerPlant powerPlant)
 {
     _fuels      = fuels;
     _powerPlant = powerPlant;
 }
 public TurbojetPowerPlantResponse(Fuels fuels, PowerPlant powerPlant) : base(fuels, powerPlant)
 {
 }