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Proposed Fan Power higher than the Baseline Fan Power

NC-v4 EAp2: Minimum Energy Performance
posted by Dave Hubka on Dec 15, 2021, 9:57 am

Hi Marcus, 

We seem to struggle on every energy model when calculating the proposed fan power....it is always so much higher than the baseline. I get pushback from design teams when...

Last reply: Dave Hubka, Dec 16, 2021, 12:04 pm

Water-cooled chiller connected to campus DES

NC-v4 EAp2: Minimum Energy Performance
posted by Ajit Naik on Sep 22, 2021, 10:07 am

Working on a model of a 3-floor, 96,000 SF archival facility on a campus. Dehumidification is very important and provided by low-dewpoint supply air. The air is cooled by 35F chilled water/glycol...

Last reply: Tyler Thumma, Dec 15, 2021, 3:33 pm

Residential Exhaust (toilet and kitchen)

NC-v4 EAp2: Minimum Energy Performance
posted by Michelle Christopher on Aug 30, 2021, 12:08 pm

Hello, I'm trying to get some cliarity regarding residential zone exhaust (from toilet exhaust and kitchen exhaust). 

Looking at the multifamily guidelines "Supply and exhaust fans that...

Last reply: Tyler Thumma, Dec 15, 2021, 1:26 pm

"with errata but without addenda"

NC-v4 EAp2: Minimum Energy Performance
posted by Alfonzo Collins on Nov 7, 2018, 10:58 am

The LEED v3 reference book already refers to ASHRAE 90.1 "with errata but without addenda."  The v4 book only says "with errata."  Does that imply that all addenda to ASHRAE 90.1 must be followed...

Last reply: Jamy Bacchus, Dec 3, 2021, 3:08 pm

EV Charger Energy

NC-v4 EAp2: Minimum Energy Performance
posted by Cory Duggin on Nov 19, 2021, 3:10 pm

Does the energy use for EV chargers have to be included in the energy model if you are going after the Electric Vehicles credit?  I thought I had read somewhere that EV charger energy was...

Last reply: Jamy Bacchus, Dec 1, 2021, 10:49 pm

AEDG For Big Box Retail in a 34000 Sq. foot Auto Dealership

NC-v4 EAp2: Minimum Energy Performance
posted by Robert Fernandez on Nov 17, 2021, 2:12 pm

I have a proposed project implementing a CV system that meets Title 24 2019 in California but I think we can get more points if I used the AEDG presciptive path in lieu of an energy model. Is...

Last reply: Robert Fernandez, Nov 17, 2021, 2:56 pm

Energy modeling of building with natural ventilation

NC-v4 EAp2: Minimum Energy Performance
posted by Ricardo Sá on Dec 14, 2020, 5:53 am

Dear All,

we’re currently involved in a project of an office building pursuing LEED certification. The majority of building areas will be endowed with natural ventilation,...

Last reply: santiago sanchez, Nov 17, 2021, 10:27 am

Low Speed High Volume Fans- Penalty in model for using?

NC-v4 EAp2: Minimum Energy Performance
posted by Donald Green on Nov 16, 2021, 9:55 am

We are partnering with our local energy company for an energy model as this service will provide anlaysis and incenteive back to the Owner. The project is using several low speed high volume fans...

Last reply: Donald Green, Nov 16, 2021, 2:29 pm

Daylight controls in multifamily mid-rise residential buildings

NC-v4 EAp2: Minimum Energy Performance
posted by Gaston Michaud on Oct 26, 2021, 12:54 pm

Hi,

By following the Multifamily Energy Model Simulation Guidelines, lighting in dwelling unit spaces shall be modeled as lit for 2-3 hours per day; so, we distributed these hours ...

Last reply: Marcus Sheffer, Oct 26, 2021, 2:00 pm

modelling and presenting GSHP results

NC-v4 EAp2: Minimum Energy Performance
posted by Manuel Martin Delgado on Oct 14, 2021, 11:06 am

Hi,

I am working on a building that includes GSHP to cover part of the heating and cooling load. Normally, due to software constrains, we tend to just use excel calculators to predict the...

Last reply: Jamy Bacchus, Oct 18, 2021, 3:23 pm