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Virtual DES Energy Rates

NC-v4 EAp2: Minimum Energy Performance
posted by Todd Tewksbury on Jun 22, 2017, 1:52 pm

When modeling district cooling and heating systems using Option 1, Path 1: ASHRAE 90.1-2010 Appendix G, the LEED Reference Guide instructs the following:
"If tariffs or rates are not...

Last reply: jamy bacchus, Jan 29, 2020, 7:46 pm

Lighting Power Density for sauna

NC-v4 EAp2: Minimum Energy Performance
posted by Francesco Passerini on Jan 20, 2020, 6:30 am

What shall I consider as Lighting Power Density (TABLE 9.6.1 of ASHRAE 90.1-2010) for a sauna that is inside a hotel?

Best Regards

Last reply: Marcus Sheffer, Jan 23, 2020, 1:00 pm

only automatic control in offices for lights

NC-v4 EAp2: Minimum Energy Performance
posted by Francesco Passerini on Mar 21, 2018, 9:49 am

Can the lighting control in offices be automatic (daylighting + occupancy sensors) only? I mean, without manual control?

Best Regards

Last reply: Marcus Sheffer, Jan 21, 2020, 3:10 pm

district energy- does the plant need to follow same ASHRAE standard?

NC-v4 EAp2: Minimum Energy Performance
posted by Craig Flandermeyer on Jan 9, 2020, 10:34 am

Project is utilizing energy from a central plant, the team is attempting to decide between using the purchased energy approach vs. modeling the plant.  The project is LEED v4 and follows ASHRAE...

Last reply: Marcus Sheffer, Jan 14, 2020, 4:27 pm

Using ASHRAE 90.1-2013 as reference standard for v4 projects

NC-v4 EAp2: Minimum Energy Performance
posted by Gail Vittori on May 21, 2018, 2:52 pm

Has there been an equivalency established for LEED v4 projects that use ASHRAE 90.1-2013-Appendix G as reference standard (as there was for LEED 2009 projects that used ASHRAE 90.1-2010-Appendix...

Last reply: jamy bacchus, Jan 7, 2020, 1:32 pm

COP of System at ambient temperature (46 degC) whereas ASHRAE takes AHRI Condition

NC-v4 EAp2: Minimum Energy Performance
posted by Neeraj Sharma on Nov 28, 2019, 1:16 pm

I am working on a project where my building has a VRF/VRV system. The ambient conditions at which the system designed is 46 deg C. Now as it's a LEED project & will be compared with ASHRAE 90...

Last reply: Jean Marais, Dec 30, 2019, 3:32 am

Heat Recovery Exceptions- Baseline Adjustments

NC-v4 EAp2: Minimum Energy Performance
posted by RDK E&S on Nov 5, 2019, 4:59 pm

Hi, I'm working on a 2-story 140,000 sf manufacturing facility and wanted some feedback on how to best set up the Baseline. The facility is compromised of a significant amount of office,...

Last reply: Tyler Thumma, Dec 20, 2019, 10:49 am

Water-Side HVAC calculator Baseline and Proposed model inputs

NC-v4 EAp2: Minimum Energy Performance
posted by Norbert Harmathy on Nov 6, 2019, 12:25 pm

Dear Sir/Madam,

I am modeling...

Last reply: Tyler Thumma, Dec 20, 2019, 10:31 am

Exterior Lighting control for 24x7 operating building

NC-v4 EAp2: Minimum Energy Performance
posted by Rathnashree Bharadwaj on Jul 27, 2018, 2:28 am

We have a commercial building which is 24x7 operating. How do we comply with the 9.4.1.7 b., 9.4.1.7c requirements when the building does not have any business closing or business opening hours...

Last reply: Waleed AlGhamdi, Dec 10, 2019, 11:22 am

Baseline building: daylight controls

NC-v4 EAp2: Minimum Energy Performance
posted by Ricardo Sá on Oct 3, 2017, 8:11 am

Hi,

my question is related with the need to consider (or not) daylight controls in baseline building. Table G3.1 (bullet 6) from ASHRAE 90.1-2010 states the following:

1) Proposed...

Last reply: Keith Robertson, Nov 27, 2019, 2:57 pm