How to get the OpenStudio Results to correctly show Interior Lighting Power Densities?
Is there a way to get the OpenStudio (1.11) Results report under "Interior Lighting Summary" to correctly display the Lighting Power Densities without rezoning? I have noticed that it only shows the correct LPDs for thermal zones that are made up of one space type. If there is a zone with multiple space types, it will break the zone out into how many spaces are in it and incorrectly calculate the LPD for the space. This seems to be because the formula used in the report to calculate the LPD takes the space total power and divides it by the zone area. In my screenshot below there are two zones, with areas of 1,364.36 ft ² for L1 CORRIDORELECPUMPSTAIR and 1,130.91 ft² for L1 LOBBYSTAIRELEVATOR. Dividing any of the "zone" Total Power listed by the actual zone area gets the Lighting Power Density shown, which is incorrect. The report should only show 2 zones with LPDs of 1.5 W/ft². This is causing a LEED reviewer to believe that I have entered my baseline building lighting loads incorrectly.
The only other question I have found that is related is this one: https://unmethours.com/question/14613...
@kramerica as you mention this is probably a mistake in the measure's calculation. @David Goldwasser should be able to fix this. In the meantime, I suggest using the
Zone Summarytable from the EnergyPlus Results.Except that section of the measure doesn't do it's own calculation, just queries the sql: https://github.com/NREL/OpenStudio/bl...