One of my projects is considering using LI ID #10421 (http://www.usgbc.org/content/10421) that allows v2009 projects to use ASHRAE 90.1-2010 with an adjusted point scale. We have the v05 version of the EAp2 form in LEED Online. My conundrum is there are no Section 1.4 Tables for v4 (that I can find in the Credit Library), so are we forced into using the Minimum Energy Performance Calculator for v4? (Based on the issues with the v06 forms update, I don't really want to upgrade to the v06/v07 version of the EAp2 form if I can help it.)

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Kathryn West

LEED AP BD+C, O+M, Green Globes Professional

JLL

LEEDuser Basic Member

112 thumbs up

Mon, 05/23/2016 - 22:22

Under the credit resources tab the page with the v2009 calculator it says "Note: If using ASHRAE 90.1-2010 per LEED Interpretation 10421, please use the v4 Minimum Energy Performance spreadsheet in lieu of this spreadsheet."

LEEDuser Expert

472 thumbs up

Tue, 05/24/2016 - 15:10

Kathryn - Yes - I've seen that remark but as evidenced below (http://www.leeduser.com/comment/redirect/64492) there are problems with the Minimum Energy Performance Calculators. I was hoping there was another option besides using those.

Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Tue, 05/24/2016 - 15:20

I think you are stuck using the new form since it is the only one that documents the 90.1-2010 baseline. If you can find another easy to thoroughly document the modeling input and output values which includes all of the necessary information I am sure it would be accepted.

Matthew Dwyer

President

Dwyer Engineering

LEEDuser Basic Member

0 thumbs up

Tue, 05/24/2016 - 18:09

Struggling with this issue as well. We used 90-2010 for a v2009-Retail project and filled out the V4 spreadsheet and it says savings is 12%. Per LID 10421, that should be 7 points, if applicable, but to get 7 points, I would have to type in 24% savings in the online form. Is that the expectation? Seems odd, since uploaded spreadsheet would show 12% savings (albeit vs. 2010).

LEEDuser Expert

472 thumbs up

Wed, 06/01/2016 - 16:43

Matthew - That is my expectation. The v4 calculator is set up for LEED v4 projects. Hence the output will show the points only for LEED v4 projects. For now, I plan to use the Special Circumstances area of the EAp2 form to alert the review team that we are using this LI. In addition, this is where I will reference the points we are anticipating. Note: You can input the 12% savings into the v07 form. Since the linkages are removed from the v06+ forms, this shouldn't be a problem for EAp2 or EAc1. However, one of my contacts at USGBC wrote: "The energy team is currently writing up some additional guidance regarding each scenario for applying the calculators. They are planning to have this guidance completed by the end of next week." I am anticipating that completion date to be June 3.

emily reese moody

Sustainability Director, Certifications & Compliance

Jacobs

LEEDuser Expert

469 thumbs up

Fri, 04/21/2017 - 01:19

I can't speak to the details here (mechanical speak is another language to me), but do the most recently issued updates to the calculators address these issues? http://www.usgbc.org/leedaddenda/5000076

LEEDuser Expert

472 thumbs up

Tue, 05/02/2017 - 16:42

Although LEED Coach originally told me that they were going to provide Additional Guidance for other calculator scenarios, I wanted to post that LEED Coach told me last summer that "The energy team discussed putting together special guidance on various documentation strategies for EAp2/EAc1. However, they decided that due to circumstances for each project being unique, any team with questions regarding the forms and/or calculators should reach out to us directly with their project details and we will provide guidance based on their specific project. They plan to issue future updates within the EA Minimum Energy Performance Calculator. We periodically issue updated versions of the calculator with bug repairs and revised notes." Emily's Addenda note includes some bug fixes for both v2009 and v4 versions of the Minimum Energy Performance Calculator. Note: There have been instructions in the Instructions worksheet of Minimum Energy Performance Calculator on v2009 projects using LI ID #10421 since the v02 version of the calculator (January 2016).

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LI ID #10421 allows 90.1-2010 for v2009 but how to document it?

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