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New version of BEopt

asked 2021-01-25 10:30:27 -0600

jpierce's avatar

updated 2021-01-25 14:11:14 -0600

Can we please get a new version of BEopt? Even a simple maintenance release would be much appreciated i.e; there have been many efforts to improve the performance of EnergyPlus, including optimizations for heat pump water heaters (an increasingly common technology), but we are unable to take advantage of this and may endure exceedingly long run times as a result.*

I recall that DOE has previously said they've virtually deprecated BEopt, but this seems a grave error given the utility of the tool, and potentially increased use it could receive with minor maintenance.

*Unfortunately, efforts to manually replace the EnergyPlus 8.8 used by BEopt with 9.4, 9.1 or even 8.9 yields the errors BEopt warns about when it detects something other than 8.8

P.S. There's also the long-standing bug regarding finished basements, that would be nice to have fixed as well.

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To clarify, the bug appears to be around editing of basement wall entries, be it finished or unfinished. It's simply more obvious for finished basements since that's the only option, whereas in unfinished basements one typically insulates the ceiling.

jpierce's avatar jpierce  ( 2022-11-16 10:12:24 -0600 )edit

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answered 2022-11-08 09:33:33 -0600

muhl's avatar

I see from other posts by @shorowit that BEOpt v3 is pending a release by 2023 (mid-Dec, by some recent posts). I agree, it's due and welcomed! It is touted to be compatible with EnergyPlus 22.2, but will not be suitable for calibrated energy modeling using ANSI/BPI-2400 standards, and therefore not compliant with Inflation Reduction Act (IRA) requirements. I consider this lack of compliance as significant, as calibrated energy modeling with historical utility bill consumption is essentially required to provide meaningful projections.

See references posts re: HPXML here, re: EER/COP here, and your other post here

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Asked: 2021-01-25 10:30:27 -0600

Seen: 147 times

Last updated: Nov 08