Forum discussion
NC-2009 EAc2: On-Site Renewable Energy
Hi,
Has anyone found a reliable calculator for estimating savings from a solar water heating system that has been submitted and accepted by USGBC reviewers. I am looking for something similar to the PV Watts calculator for solar PV calculations.
Thank you!
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Can I pursue this credit if I am using one of the prescriptive compliance paths for EAp2/EAc1?
Can I really double-count onsite renewable energy in both EAc2 and EAc1?
Our PV system is being installed after the building is occupied. Is that okay?
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5868 thumbs up
January 6, 2016 - 1:44 pm
We have used RETScreen. It is commonly submitted for LEED projects.
Kalyan Nishtala
Novus Engineering, P.C.8 thumbs up
January 6, 2016 - 3:29 pm
Okay, thank you Marcus!
Eric Bautista
Head of Energy & Environmental ManagementEB Project Management | Green Building Consultants
17 thumbs up
June 16, 2016 - 10:32 pm
Hello Marcus,
Quite OT here: Can we use RETScreen software for energy modeling and results can be uploaded to meet EAp2/EAc1?
I am capable in using both RETScreen and eQuest, but am still thinking what software would be best to perform energy modeling to meet these credits.
TIA,
Eric
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5868 thumbs up
June 17, 2016 - 9:06 am
I do not think RETScreen meets the software requirements of Appendix G. See G2.2.