Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
A lot of the methods in the openstudio-standards library require equipment capacities and flow rates to determine efficiencies, required control strategies, etc. If you are using the methods from this library directly in your own Measure you'll need to make sure your Measure runs a sizing run before calling them.
The "Create Performance Rating Method Baseline Building" Measure works by making a bunch of changes to your model (applying baseline HVAC systems, constructions, etc.), running a sizing run, then using the resulting capacities and flow rates to determine efficiencies. Sometimes after all these changes the sizing run fails, in which case the Measure can't proceed because it can't look up efficiencies.
This Measure is still under very active development and hasn't actually been released yet, so I'm assuming you are pulling straight from GitHub. We merged a bunch of significant changes on 7/20 and 7/21, so I'd suggest pulling that code and retrying. If you do that and run into problems that seem like issues in the code, we'd appreciate you reporting them here so we can check them out and fix them.
