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 »
date
activity
answers
votes ▼
13192
questions
Tagged
78
views
no
answers
no
votes
2025-10-07 00:18:17 -0600
Lissette97
Optimizing thermal comfort in Jeplus+EA
thermal-comfort
jeplus+ea
optimization
energyplus
ppd
1k
views
no
answers
no
votes
2025-10-15 18:01:35 -0600
BShah
OS V1.09 and V1.10 do not open for me as of Oct 10, 2025 [closed]
openstudio
openstudio-application
measure
application-error
202
views
no
answers
no
votes
2025-10-16 09:21:04 -0600
BShah
OpenStudio Stopped working
openstudio
openstudio-application
measure
application-error
232
views
1
answer
no
votes
2025-10-21 11:33:48 -0600
nmoore
Negative cooling load
openstudio
cooling-load
openstudio-hpxml
43
views
no
answers
no
votes
2025-10-20 06:52:02 -0600
Evelia124
detailed hvac system for the baseline model in deisgn builder? [closed]
designbuilder
leed
baseline
hvac-diagram
ashrae-90.1
149
views
no
answers
no
votes
2025-10-20 06:52:03 -0600
Evelia124
detailed hvac system for the baseline model in design builder? [closed]
designbuilder
leed
baseline
hvac-diagram
ashrae-90.1
159
views
1
answer
no
votes
2025-10-24 06:37:20 -0600
mdedoes
detailed hvac system for the baseline model in design builder?
designbuilder
leed
baseline
hvac-diagram
ashrae-90.1
251
views
no
answers
no
votes
2025-10-20 16:03:30 -0600
Behnam
Is it possible to implement a specific Nusselt number and friction factor for flat plate solar collector object in EnergyPlus?
solar-collector
energyplus
measured-data
225
views
no
answers
no
votes
2025-10-27 16:18:05 -0600
theoryshaw
Photometric site study using Radiance
radiance
73
views
no
answers
no
votes
2025-10-27 19:50:20 -0600
mahaqasaimeh
Fluid-to-Fluid Heat Exchanger Warning: “Control type requires setpoint manager: HX 1 [closed]
designbuilder
plant-loop
setpoint-manager
heat-exchanger
condenser-loop
66
views
no
answers
no
votes
2025-10-29 05:35:25 -0600
Evelia124
unmet hours for leed report Design builder
design
designbuilder
47
views
no
answers
no
votes
2025-10-29 16:54:04 -0600
jdlouhy
Why does FanSystemModel cause Air Loops Detail Section in OpenStudio Results not to run? [closed]
fan
error
openstudio-application
openstudio-results
air-loop
142
views
no
answers
no
votes
2025-10-30 09:02:37 -0600
Ati4745
How do I connect an Air loop to an air-to-water heat pump in design builder?
designbuilder
air-loop
heat-pump
119
views
no
answers
no
votes
2025-10-30 09:47:09 -0600
Cromorne
Thermal study of a single-family home
residential
openstudio
openstudio-application
sketchup-openstudio-plugin
183
views
no
answers
no
votes
2025-11-02 18:53:56 -0600
sandip_mep
steady state energy balance
energyplus
112
views
no
answers
no
votes
2025-11-04 17:01:50 -0600
sandip_mep
AMY weather file for any location of USA
weather-file
213
views
2
answers
no
votes
2025-11-07 09:51:43 -0600
Denis Bourgeois
Add performance data to OpenStudio Coalition model
openstudio
air-to-water-heat-pump
performance-data
openstudio-application
59
views
no
answers
no
votes
2025-11-05 18:00:36 -0600
Gio_GG
Convert HPXML to OSM with Python [closed]
hpxml
openstudio-hpxml
osm-file
python
41
views
no
answers
no
votes
2025-11-05 18:00:36 -0600
Gio_GG
Convert HPxml to osm [closed]
hpxml
openstudio-hpxml
osm-file
python
102
views
no
answers
no
votes
2025-11-05 18:00:37 -0600
Gio_GG
Conversion of HPXML to OSM with Python
hpxml
openstudio-hpxml
osm-file
python
110
views
1
answer
no
votes
2025-11-07 08:31:15 -0600
Aaron Boranian
Is RTF used while defrost power calculation in DX:Heating:Coil component?
heating-coil
energyplus
documentation
164
views
no
answers
no
votes
2025-11-09 01:30:49 -0600
Fikremariam M. Seyoum
Simulation error when adding inter-pane shading layer in Honeybee
honeybee
ladybug
energyplus
error
fenestration
172
views
1
answer
no
votes
2025-11-10 13:47:17 -0600
Denis Bourgeois
Need help fixing an input format error
severe-error
idf
energyplus
surface
geometry
207
views
2
answers
no
votes
2025-11-12 02:05:45 -0600
Jack Lee
How can I get results of Openstudio output variables?
openstudio
output-variable
results
openstudio-application
295
views
1
answer
no
votes
2025-11-12 12:32:42 -0600
ericmartinpe
Openstudio/Energyplus is not very accurate
thermal-mass
openstudio
accuracy
zone-temperature
124
views
1
answer
no
votes
2025-11-12 20:37:26 -0600
Greg Estep
Designing MVHR in Design builder
designbuilder
hvac
144
views
1
answer
no
votes
2025-11-13 09:10:59 -0600
Aaron Boranian
Anyone know when Version 25.2.0 will be posted?
releases
version
update
energyplus
86
views
no
answers
no
votes
2025-11-13 09:18:39 -0600
Aaron Boranian
Water heater circulation Scheme from an EnergyScore export.
plant-equipment-operation
asset-score
openstudio
energyplus
service-hot-water
163
views
2
answers
no
votes
2025-11-20 14:26:09 -0600
glbrown
Should Heat Recovery Be Included in Baseline Model if Present in Proposed Design? (ASHRAE 90.1-2010 Appendix G)
ashrae-90.1
appendix-g
heat
heat-recovery
designbuilder
281
views
1
answer
no
votes
2025-11-22 10:22:42 -0600
obuchely
Problem with Ideal Loads
ideal-loads-air-system
openstudio
cooling-load
district-heating
energyplus
« previous
1
...
436
437
438
439
440
next page »
Training Workshops
Contributors
Tags
energyplus
×9
openstudio
×9
designbuilder
×8
openstudio-application
×6
ashrae-90.1
×4
openstudio-hpxml
×4
baseline
×3
hpxml
×3
hvac-diagram
×3
leed
×3
osm-file
×3
python
×3
air-loop
×2
application-error
×2
cooling-load
×2
error
×2
measure
×2
accuracy
×1
air-to-water-heat-pump
×1
appendix-g
×1
asset-score
×1
condenser-loop
×1
design
×1
district-heating
×1
documentation
×1
fan
×1
fenestration
×1
geometry
×1
heat
×1
heat-exchanger
×1
heating-coil
×1
heat-pump
×1
heat-recovery
×1
honeybee
×1
hvac
×1
ideal-loads-air-system
×1
idf
×1
jeplus+ea
×1
ladybug
×1
measured-data
×1
openstudio-results
×1
optimization
×1
output-variable
×1
performance-data
×1
plant-equipment-operation
×1
plant-loop
×1
ppd
×1
radiance
×1
releases
×1
residential
×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
×