Hi to all:
Please help me to clarify how the baseline model is defined for the M&V plan, it is clear that for the "actual case" the proposed model created for the EAc1 must be calibrated based on energy bills and measured performance during one year; but how is defined the baseline mode for comparision purposes? Should it be the proposed model delivered for EAc1? Should it be the baseline model delivered for EAc1? Should it be the proposed model delivered for EAc1 substracting the ECM implemented during the design and construction?
Thank you a lot for your comments
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
May 2, 2013 - 1:21 pm
You basically take the calibrated model of the building and use that to create another Appendix G baseline model. This is your calibrated baseline for comparison.
So the adjusted schedules, utility rates, occupancy, etc. that must be identical are taken from the calibrated model and applied to the Appendix G baseline model.
Gustav Alfaro
Mechanical Engineer16 thumbs up
May 2, 2013 - 3:39 pm
Thank you for your soon feedback. What you indicate is what I understood but the Reference Guide says "Calibration is achieved by adjusting the energy simulation model to reflect actual operating conditions and parameters. Next, the conservations measures are removed from the model to define the baseline..." so, this sentence is kind of confusing because it seems that, for instance, if one of the conservation measures was to insulate the walls, then in the EAc5 baseline models the walls should appear without insulation (removing the conservation measures). Id appreciate if you can clarify further.
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
May 2, 2013 - 4:46 pm
They mean that you should take the level of wall insulation from what you have in your building back down to the code minimum insulation value. An Appendix G baseline does just that.
Gustav Alfaro
Mechanical Engineer16 thumbs up
May 2, 2013 - 7:46 pm
Thank you Marcus
Leandro Silva
Novva Solutions17 thumbs up
July 5, 2013 - 12:56 pm
I mistakenly assumed that the baseline energy model for this credit would be the as-built simulation used to document compliance with EAp2 and EAc1 rather than the appendix G model. It made sense to me to compare actual energy use to projected energy use but I suppose in the end you end up with the same information.
Thank you.