First time here? Check out the
Help
page!
Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Hi there! Please sign in
help
tags
users
badges
ALL
UNANSWERED
Ask Your Question
RSS
Sort by »
relevance
date ▼
activity
answers
votes
216
questions
Tagged
145
views
2
answers
1
vote
2025-07-10 22:22:18 -0500
Anurag_G
Clarification on Modeling Solar Hot Water Systems in ASHRAE 90.1-2010 Baseline
solar-collector
dhw
ashrae-90.1
baseline
79
views
1
answer
2
votes
2025-07-05 13:11:28 -0500
Greg Estep
ASHRAE 90.1-2010 – Recirculation in Baseline Systems 4 and 6?
ashrae-90.1
baseline
recirculating
86
views
no
answers
no
votes
2025-07-02 10:17:28 -0500
Anurag_G
Clarification on Baseline System Modeling for Data Center with Free Cooling
ashrae-90.1
data-center
energy-consumption
free-cooling
154
views
1
answer
no
votes
2025-07-14 21:55:25 -0500
Keigo
Conditioned Parking Garage
parking
garage
ashrae-90.1
space-type
216
views
1
answer
1
vote
2025-05-09 10:30:50 -0500
dradair
ASHRAE ECB Heat Source for DOAS with terminal WSHP
ashrae-90.1
ecb
baseline
288
views
no
answers
no
votes
2025-04-28 05:46:41 -0500
Anurag_G
Modelling core and shell zones under tenant for LEED
designbuilder
leed
ashrae-90.1
baseline
179
views
1
answer
no
votes
2025-04-25 13:14:35 -0500
Denis Bourgeois
Glass U-factor in ASHRAE baseline
baseline
openstudio-standards
ashrae-90.1
summary-report
fenestration
189
views
no
answers
no
votes
2025-04-24 14:43:53 -0500
Denis Bourgeois
Heating and cooling load in a baseline model (DesignBuilder)
designbuilder
hvac
ashrae-90.1
baseline
unmet-hours
650
views
1
answer
1
vote
2025-04-25 06:17:46 -0500
Denis Bourgeois
I have a query regarding the energy modelling approach for a data hall.
energyplus
ashrae-90.1
hvac-control
data-center
107
views
no
answers
1
vote
2025-03-13 12:05:21 -0500
hghg
10 CFR part 433 energy performance requirement
ashrae-90.1
baseline
188
views
no
answers
no
votes
2025-02-14 14:56:28 -0500
ArchJan
Window scaling error - baseline case model
wwr
designbuilder
application-error
baseline
ashrae-90.1
124
views
1
answer
no
votes
2024-12-05 10:37:14 -0500
crduggin
District Cooling in ASHRAE Energy Cost Budget Method (continued)
ecb
ashrae-90.1
ies-ve
district-cooling
district-chilled-water
192
views
2
answers
1
vote
2025-05-21 08:12:55 -0500
mattkoch
Equal OA for ASHRAE 90.1 baseline and proposed in OpenStudio?
openstudio
outdoor-air
openstudio-application
ashrae-90.1
baseline
110
views
1
answer
3
votes
2024-11-21 08:44:36 -0500
Annie Marston
Lighting schedule without Occupancy Sensor
lighting
schedule
ashrae-90.1
227
views
1
answer
1
vote
2024-11-20 13:04:20 -0500
Petros Dalavouras
LEED/ASHRAE 90.1 airsource heat pump min OA Temp
leed
ashrae-90.1
baseline
hvac-control
air-source-heat-pump
159
views
1
answer
no
votes
2024-11-18 04:56:58 -0500
Jim Dirkes
Can somebody please help me with too many unmet hours issue in my model
unmet-hours
baseline
designbuilder
ashrae-90.1
169
views
1
answer
1
vote
2024-11-18 07:19:26 -0500
Tokarzewski
Cannot perform rotated baseline model simulation in DesignBuilder
designbuilder
ashrae-90.1
baseline
orientation
63
views
no
answers
no
votes
2024-11-12 14:35:26 -0500
RTM63
Using FluidCooler for Water Economizer at Low Temps
fluid-cooler
openstudio-application
ashrae-90.1
hydronic-economizer
581
views
1
answer
1
vote
2024-08-08 10:57:59 -0500
FxMad
DCV in DesignBuilder - Show compliance with ASHRAE 90.1
designbuilder
ashrae-90.1
dcv
exhaust-air
142
views
no
answers
no
votes
2024-08-04 23:52:37 -0500
Jasper_Capricho
Issue with Simulation Result of Baseline 4-Rotations in Design Builder
designbuilder
simulation
baseline
ashrae-90.1
appendix-g
175
views
no
answers
no
votes
2024-07-23 05:08:54 -0500
FxMad
ASHRAE 90.1 DesignBuidler
designbuilder
ashrae-90.1
baseline
output-report
2k
views
2
answers
2
votes
2024-07-15 18:14:59 -0500
sashadf1
Determining heating/cooling COPnf for 90.1
ashrae-90.1
coefficient-of-performance
eer
254
views
1
answer
2
votes
2024-07-01 06:36:30 -0500
JasonGlazer
District Cooling in ASHRAE Energy Cost Budget Method
ecb
ashrae-90.1
water-source-heat-pump
dx
ies-ve
87
views
no
answers
no
votes
2024-05-24 04:47:29 -0500
codygillmore
Comstock vs ASHRAE 90.1 Templates
openstudio-standards
comstock
ashrae-90.1
818
views
2
answers
2
votes
2024-05-25 02:35:36 -0500
Keigo
Baseline Lighting Schedule Adjustment for ASHRAE 90.1-2016, 2019 and 2022 Appendix G
ashrae-90.1
appendix-g
lighting-control
baseline
occupancy
334
views
1
answer
2
votes
2024-04-08 10:34:38 -0500
Keigo
Additional Lighting Power Allowance in new Appendix G
lighting
appendix-g
ashrae-90.1
performance-rating-method
63
views
no
answers
no
votes
2024-03-06 16:13:04 -0500
Stephen Pope
Constructions for ASHRAE 90.1-2013 CZ 6A
ashrae-90.1
construction-set
construction
438
views
1
answer
3
votes
2025-06-02 13:29:17 -0500
ericmartinpe
PNNL latest Commercial models don't align with the ASHRAE 90.1-2019 code
commercial-prototype-building
commercial-reference-building
ashrae-90.1
construction
403
views
no
answers
1
vote
2024-01-31 08:25:29 -0500
danielsalinas96
Is there an OpenStudio measure for creating ASHRAE 90.1-2007 PRM Model?
performance-rating-method
179d-tax-credit
openstudio-measure
baseline
ashrae-90.1
456
views
no
answers
no
votes
2024-01-23 14:10:27 -0500
willyJohan
Removing fan energy from rated COP
energyplus
coefficient-of-performance
ashrae-90.1
fan
1
2
3
4
5
...
8
next page »
Training Workshops
Contributors
Tags
ashrae-90.1
×30
baseline
×16
designbuilder
×8
appendix-g
×3
ecb
×3
coefficient-of-performance
×2
construction
×2
data-center
×2
energyplus
×2
hvac-control
×2
ies-ve
×2
leed
×2
lighting
×2
openstudio-application
×2
openstudio-standards
×2
performance-rating-method
×2
unmet-hours
×2
179d-tax-credit
×1
air-source-heat-pump
×1
application-error
×1
commercial-prototype-building
×1
commercial-reference-building
×1
comstock
×1
construction-set
×1
dcv
×1
dhw
×1
district-chilled-water
×1
district-cooling
×1
dx
×1
eer
×1
energy-consumption
×1
exhaust-air
×1
fan
×1
fenestration
×1
fluid-cooler
×1
free-cooling
×1
garage
×1
hvac
×1
hydronic-economizer
×1
lighting-control
×1
occupancy
×1
openstudio
×1
openstudio-measure
×1
orientation
×1
outdoor-air
×1
output-report
×1
parking
×1
recirculating
×1
schedule
×1
simulation
×1
Site design and logo: Copyright © 2015 Big Ladder Software LLC. All rights reserved.
The
Unmet Hours
and
Big Ladder
names and logos are trademarks of Big Ladder Software LLC.
User contributions licensed under the
Creative Commons Attribution Share Alike 3.0 License
.
Powered by
Please note: Unmet Hours requires javascript to work properly, please enable javascript in your browser,
here is how
dummy
×