Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
When running an ERI calculation, BEopt needs to perform three EnergyPlus simulations -- the normal BEopt building, the ERI Rated Home, and the ERI Reference Home -- instead of one. (In fact, as of ANSI 301-2014 Addendum E, an ERI calculation now requires four simulations instead of two.) Yes, there can be times when the Reference Home may not change and BEopt could be smarter about it, but many situations will require additional ERI Reference Home simulations, so the runtime improvement would probably not be so great.
Regardless, note that A) the ERI calculation in BEopt should probably not bet used -- it's still using ANSI 301-2014, not 301-2019, and before lots of addenda and software consistency clarifications have been made, and B) the ERI calculation will be removed in BEopt v3.
| | 2 | No.2 Revision |
When running an ERI calculation, BEopt needs to perform three EnergyPlus simulations -- the normal BEopt building, the ERI Rated Home, and the ERI Reference Home -- instead of one. (In fact, as of ANSI 301-2014 Addendum E, an ERI calculation now requires four simulations instead of two.) Yes, there can be times when the Reference Home may not change and BEopt could be smarter about it, but many situations will require additional ERI Reference Home simulations, so the runtime improvement would probably not be so great.
Regardless, note that A) the ERI calculation in BEopt should probably not bet be used anymore -- it's still using ANSI 301-2014, not 301-2019, and before lots of addenda and software consistency clarifications have been made, and B) the ERI calculation will be removed in BEopt v3.
