SHW model: no way to get cost of auxiliary energy

NREL / SAM

System Advisor Model (SAM)

BSD 3-Clause "New" or "Revised" License

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SHW model: no way to get cost of auxiliary energy #65

Closed bje- closed 4 years ago

bje- commented 6 years ago

It seems that there is no way to get an output variable in SAM for the dollars per year spent on auxiliary energy in the solar hot water model. You can get cost with system, cost without system, etc., but these include pumping energy, etc. All I want to know is how much money is being spent on auxiliary boosting of the tank?

nickdiorio commented 6 years ago

Hi Ben, it's been some time since I've looked at this module. But I think the "electricity bill" with system is essentially equal to the money spent on auxiliary boosting of the tank. You could set the pumping efficiency to 100% and a very low power as well.