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Off-site renewables calculated in Optimized Energy Performance in LEED v4

NC-v4 EAc2: Optimize Energy Performance
posted by Deb Favaretto on Apr 21, 2020, 3:10 pm

Hi,

Under LEED v4 for BD+C NC, can we count the energy savings from off-site renewables in our Optimized Energy Performance (Option 1) calculations to potentially claim maximum 18 points...

Last reply: Marcus Sheffer, Jul 9, 2020, 1:13 pm

Min outside air requirements for unoccupied spaces/buildings- energy modeling

NC-v4 EAc2: Optimize Energy Performance
posted by Abhinay Sharma on Jun 9, 2020, 5:30 pm

Hi all,

We have an unoccupied building (sub station) that has corridors, toilet etc for very occasional maintenance occupancy. 

The makeup air unit/DOAS system provides enough OA to...

Last reply: Tyler Thumma, Jun 10, 2020, 3:12 pm

IES thermal block and baseline model with system 6

NC-v4 EAc2: Optimize Energy Performance
posted by on Jan 27, 2020, 8:30 pm

Dear all, 
I need your professional opinion about a project that I am currently working on.
The HVAC zones and zone groups tree is like: Group 1>A(5)>A.1(Master), A.2, A.3, A.4...

Last reply: , May 28, 2020, 5:41 pm

Process HVAC modeling approach

NC-v4 EAc2: Optimize Energy Performance
posted by Abhinay Sharma on May 27, 2020, 2:56 pm

Hi, we are consisering options for our high process load building in meeting the minimum requirements of the energy credit. 

We have spaces that have a high heat load, and non-mechanical...

Last reply: Cam Fitzgerald, May 28, 2020, 8:58 am

Economizer for VRF and other systems as per ASHRAE 90.1-2010 requirement

NC-v4 EAc2: Optimize Energy Performance
posted by Micaela Smulevich on May 12, 2020, 2:58 pm

when working With Roof Tops machines and commercial split system or water chiller with air handling units I consider the economizer is required as per ASHRAE section 6.5.1, is this correct? ...

Last reply: Marcus Sheffer, May 14, 2020, 12:49 pm

Can COMcheck be used for EAc2 compliance?

NC-v4 EAc2: Optimize Energy Performance
posted by Aditya Potipireddi on May 13, 2020, 1:35 pm

Hello All,

I have an architect telling me that a project in Miami, FL used COMcheck to show compliance with EA Credit Optimize Energy Performance. Is this possible? I would assume no,...

Last reply: Christopher Schaffner, May 13, 2020, 4:27 pm

Round off in % of saving

NC-v4 EAc2: Optimize Energy Performance
posted by SAMY Chamy on Mar 17, 2018, 5:20 am

Dear All:-

it our industrial project we have energy cost saving of 37.8%  can we take it as 38% to get more points because i need 15 points in energy to get correct ratings 

...

Last reply: Maria Grimm, Apr 20, 2020, 8:24 pm

Lab Exhaust Fan Power- ASHRAE 2013

NC-v4 EAc2: Optimize Energy Performance
posted by Abhinay Sharma on Mar 30, 2020, 8:01 pm

Hi,

I am working on a laboratory project and we are using ASHRAE 90.1 2013 for the energy credit.  In 2013 it states the baseline lab exhaust shall be modeled as constant horsepower...

Last reply: Tyler Thumma, Apr 15, 2020, 1:16 pm

Points in Addition to Renewable Energy Production?

NC-v4 EAc2: Optimize Energy Performance
posted by Dianne Herrin on Mar 16, 2017, 2:17 pm

Hi - Our solar PV system is adding two points to our "optimize energy performance" category due to the cost offset. Can I also claim additional points for...

Last reply: Stephanie Graham, Mar 16, 2020, 1:29 pm

Energy Model Room category for server room relevant in baseline building

NC-v4 EAc2: Optimize Energy Performance
posted by Benjamin Weise on Mar 6, 2020, 6:08 am

We're modelling an office building (space by space method) with a relatively big server room (50kW). We couldn't find a room type that corresponds to a server room and are wondering whether it'll...

Last reply: Benjamin Weise, Mar 10, 2020, 10:59 am