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Building Envelope: does this requirement apply only for new envelope, or for existing also?

CI-v4 EAc2: Optimize Energy Performance
posted by Micaela Smulevich on May 2, 2019, 1:51 pm

We are working on a CI v4 project, that is three stories high. Client is looking into replacing some of the exterior windows. Not all windows would be in the scope of work. Our team needs an...

Last reply: Marcus Sheffer, May 2, 2019, 6:59 pm

Energy Modelling- Baseline water-cooled chiller's COP, adjusted to local outdoor conditions in lieu of AHRI conditions?

CI-v4 EAc2: Optimize Energy Performance
posted by Andrew Xiao Junzhao on Mar 12, 2019, 4:51 am

Dear LEED APs,

I have a LEED CI v4 project in Taipei, Taiwan, which require whole building energy modelling. Couple of questions I hope to seek clarity:

Question 1:

...

Last reply: Marcus Sheffer, Mar 18, 2019, 3:46 pm

ENERGY STAR Equipment and Appliances Policy

CI-v4 EAc2: Optimize Energy Performance
posted by Saurabh Shrestha on Jan 23, 2019, 8:30 pm

I am working on a project where the ownership has a policy that requires 100% of equipment and appliances to be ENERGY STAR-rated. However, for this particular project, the equipment and...

Last reply: Marcus Sheffer, Jan 24, 2019, 11:12 am

Modelling outdoor air flow rate in baseline energy model- ASHRAE 62.1 and Local Code

CI-v4 EAc2: Optimize Energy Performance
posted by Ciaran McCabe on Jan 17, 2019, 2:54 pm

Hi all,

In the open plan office areas we followed the local code (CIBSE – guidance documents) which exceeds ASHRAE 62.1 (+30%) significantly, and in all other areas we followed ASHRAE 62.1...

Last reply: Marcus Sheffer, Jan 17, 2019, 3:10 pm

Energy Model Scope for CI Project with independent HVAC system

CI-v4 EAc2: Optimize Energy Performance
posted by Marie Garcia on Oct 9, 2018, 5:07 am

hi Marcus / hi everyone,

We have a LEED CI project that is part of a 4 storey commercial building. Only portion of the Ground Floor will be part of the LEED CI project. Each tenant space...

Last reply: Marie Garcia, Oct 10, 2018, 11:37 pm

HVAC Equipment Efficiency

CI-v4 EAc2: Optimize Energy Performance
posted by Jonathan Koh on Oct 9, 2018, 9:25 am

Hi, my building has a single tenant and we are going for LEED ID+C. The building is served by a water-cooled chiller plant and chilled water fan coil units. Looking at the ADEG for climate zone 1...

Last reply: Marcus Sheffer, Oct 10, 2018, 11:05 am

HAVC zoning and controls

CI-v4 EAc2: Optimize Energy Performance
posted by Amy L on Jul 17, 2018, 3:45 am

If it comes from another credit please post you question under that forum. Log in or register to post comments Amy L LEEDuser Basic Member July 17, 2018- 10:35 pm Hi Marcus, the statement comes from...

Last reply: Marcus Sheffer, Aug 8, 2018, 12:16 pm

Project Commercial Interior in existing building.

CI-v4 EAc2: Optimize Energy Performance
posted by Vassil Vassilev on Jul 24, 2018, 7:09 am

The issues is related to the cooling.

Greetings,

The project pursuing LEED CI is renting an floor area, part of a building with a central cooling plant with a cold water chiller and...

Last reply: Marcus Sheffer, Jul 24, 2018, 11:46 am

Option 2 HVAC Zoning & Controls

CI-v4 EAc2: Optimize Energy Performance
posted by Aaron Wintersmith on Jun 6, 2018, 7:56 pm

The credit language for this Option says "provide a separate control zone for each solar exposure and interior space."

The proposed design is pretty typical...

Last reply: Marcus Sheffer, Jun 8, 2018, 10:51 am

Efficient Refrigeration Equipment

CI-v4 EAc2: Optimize Energy Performance
posted by Michael Archer on May 22, 2018, 10:29 am

Under 'Further explanation - Exceptional Calculation method - Changes from earlier versions of ASHRAE and LEED', the CI reference guide states "All project types may count energy savings from...

Last reply: Marcus Sheffer, May 22, 2018, 12:32 pm