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BEOpt: No energy used for water heating for certain time periods

asked 2022-12-12 13:49:09 -0600

artless0's avatar

updated 2022-12-12 13:54:40 -0600


I am modelling a multi unit townhouse right now and have noticed that in the hourly output view, some months have a drop that isn't present in other homes that I have modelled for the same weather file. It drops down to 0 btu at some points which doesn't make sense. I have changed the water heater type, floorplan, and checked between single-family detached vs multi-family. I am using a small city within California as my weather file that I got from, and I compared it to Los Angeles, and the trend is still there. Does anyone have any suggestion on why this could be the case? Thanks

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Can you provide your BEopt project file via Google Drive or Dropbox? And maybe provide a screenshot?

shorowit's avatar shorowit  ( 2022-12-12 15:19:57 -0600 )edit Can't seem to edit my original question, here's the drive link.

artless0's avatar artless0  ( 2022-12-12 15:36:00 -0600 )edit

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answered 2022-12-15 15:47:56 -0600

BEopt 2.8 assumes there are several vacation periods throughout the year, per the Building America House Simulation Protocols: May 26-28, Aug 12-18, and Dec 22-25.

I agree that it's pretty confusing. Vacation periods have been removed by default for the upcoming BEopt v3.

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Asked: 2022-12-12 13:49:09 -0600

Seen: 171 times

Last updated: Dec 15 '22