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PV panels not working properly

I have two E+ models that are identical except for the PV generator capacity. I have defined the PV array as:

  • PhotovoltaicPerformance:Simple (90% surface fraction, 15% fixed efficiency)
  • Generator:Photovoltaic (decoupled, 1 series string, 1 module)
  • ElectricLoadCenter: Distribution (Baseload, 0W purchased electric demand limit)
  • ElectricLoadCenter:Inverter:Simple (on 24/7, .3 radiative, .9 efficiency)
  • ElectricLoadCenter:Generators (1w for one model, 50,000w for the other model)

The results are almost identical, which makes no sense to me.

I reported Photovoltaic:ElectricityProduced J for both Northern hemisphere models and see:

  • almost identical values in both models
  • hourly values are non-zero when the sun is gone (as they should be)
  • uniformly low values in both models (January is never greater than ~5,000w, July is never greater than ~8,000w)

I might be talked into believing the low values, but can't imagine or figure out why both models, which have vastly differing power output, show identical results. Help, please!

PV panels not working properly

I have two E+ models that are identical except for the PV generator capacity. I have defined the PV array as:

  • PhotovoltaicPerformance:Simple (90% surface fraction, 15% fixed efficiency)
  • Generator:Photovoltaic (decoupled, 1 series string, 1 module)
  • ElectricLoadCenter: Distribution (Baseload, 0W purchased electric demand limit)
  • ElectricLoadCenter:Inverter:Simple (on 24/7, .3 radiative, .9 efficiency)
  • ElectricLoadCenter:Generators (1w for one model, 50,000w for the other model)

The results are almost identical, which makes no sense to me.

I reported Photovoltaic:ElectricityProduced J for both Northern hemisphere models and see:

  • almost identical values in both models
  • hourly values are non-zero when the sun is gone (as they should be)
  • uniformly low values in both models (January is never greater than ~5,000w, July is never greater than ~8,000w)

I might be talked into believing the low values, but can't imagine or figure out why both models, which have vastly differing power output, show identical results. Help, please!