Hi
We work on a project pursuing Leed C&S 2009 certification in France. The building is connected to a heating and cooling DES (one facility), and we consider option 2 for calculations regarding credits EAp2 and EAc1. This DES is supplied only by electricity (chilled and hot water are produced simultaneously by the same group of heat pumps with a sea water loop as a heat/cold sink).
According to Ashrae 90.1 appG and Treatment of DES v2.0, the heat plants would be :
- onsite gas boiler (systems 7) for the baseline
- virtual DES plant which uses electricity
It sounds strange to count, for heating consumption, gas rate for baseline and electricity rate for proposed. (There is no gas in the proposed).
Thanks for your help
You rely on LEEDuser. Can we rely on you?
LEEDuser is supported by our premium members, not by advertisers.
Go premium for
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5914 thumbs up
March 10, 2015 - 11:10 am
I am not sure how you are coming up with a system #7. Under DESv2, option 2 you model a virtual heating and cooling plant according to Table G3.1.1A. If the proposed heating is electric then the baseline heating is electric.