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
5739
questions
Tagged
energyplus
×
140
views
2
answers
no
votes
2025-05-20 07:52:55 -0500
RobinCris
openstudio transparent walls (only with windows)
openstudio
energyplus
idf-file
bug-report
geometry
1k
views
no
answers
2
votes
2025-05-20 07:27:17 -0500
Zakaria
EnergyPlus Walk-in Freezer Model Issue: Compressor Runtime Fraction Not Equal to 0 When Power is 0W
refrigeration-equipment
energyplus
walkin-freezer
compressor
air-chiller
513
views
2
answers
6
votes
2025-05-19 09:07:14 -0500
Julien Marrec
Fan motor efficiency has no impact on energy consumption
openstudio
fan-coil-unit
fan
energyplus
100
views
1
answer
no
votes
2025-05-19 07:34:55 -0500
kwalkerman
Defining CO2 levels inside thermal zone and Control it
co2
openstudio
energyplus
vegetation
mechanical-ventilation
197
views
2
answers
4
votes
2025-05-19 07:24:01 -0500
kwalkerman
Incorrect autosizing of PTHP's heating coil
energyplus
pthp
autosizing
bug-report
49
views
no
answers
no
votes
2025-05-18 10:06:19 -0500
ssjjjyyy
Cooling Energy Increase after Reducing Nominal Lighting Power
energyplus
internal-load
lighting
cooling-load
openstudio
299
views
1
answer
2
votes
2025-05-16 02:36:33 -0500
Ski90Moo
OpenStudio Convergence Error
openstudio
convergence
severe-error
energyplus
warmup
659
views
1
answer
1
vote
2025-05-16 02:11:56 -0500
Ski90Moo
HAVC did not converge after 25 warmup days.
energyplus
severe-error
warmup
convergence
210
views
no
answers
no
votes
2025-05-15 07:06:43 -0500
Aaron Boranian
Chilled Water Storage Tank errors in DOE Medium Office Building?
doe-prototype-buildings
energyplus
thermal-energy-storage
chilled-water-loop
commercial-reference-building
226
views
2
answers
2
votes
2025-05-12 20:19:53 -0500
Jamie Sullivan
EnergyPlus ground domain - Slab-ON-grade with vertical perimeter insulation
energyplus
designbuilder
ground-heat-transfer
ground
247
views
no
answers
no
votes
2025-05-12 07:46:52 -0500
Alex89
OpenStudio Error when using Low Temp Radiant Var Flow- HVAC system, possible bug?
openstudio
bug-report
low-temperature-radiant
energyplus
idf-editor
208
views
no
answers
1
vote
2025-05-10 14:21:23 -0500
Samir
Request for OpenStudio/EnergyPlus/DesignBuilder File of a Vented Double Skin Façade
openstudio
energyplus
designbuilder
double-skin-facade
126
views
no
answers
no
votes
2025-05-10 14:18:40 -0500
Samir
Request for OpenStudio/EnergyPlus/DesignBuilder File of a Vented Double Skin Façade [closed]
openstudio
designbuilder
energyplus
double-skin-facade
72
views
no
answers
no
votes
2025-05-09 08:17:33 -0500
Alex89
Whats a realistic powerusage for Fans in PTAC Cooling
energyplus
openstudio
cooling
ptac
fan
139
views
no
answers
no
votes
2025-05-08 12:18:59 -0500
PB
Create or modify a Design Day File
design-day
openstudio
energyplus
weather-file
69
views
1
answer
1
vote
2025-05-07 06:13:15 -0500
JasonGlazer
Climatic Data Summary is coming out blank from Openstudio even with epw file selected
openstudio
epw-file
stat-file
energyplus
summary-report
115
views
2
answers
no
votes
2025-05-06 17:38:19 -0500
Aaron Boranian
Initial temperature unmatching
energyplus
airflow-network
initial-conditions
warmup
133
views
no
answers
2
votes
2025-05-06 15:18:47 -0500
Kashif72
How to get Exfiltration Values (amount of air leaving a zone) in EnergyPlus output files?
energyplus
exfiltration
output-variable
airflow-network
295
views
1
answer
no
votes
2025-05-05 07:51:58 -0500
Fred
how can I apply airflow network with ideal air loads?
airflow-network
ideal-loads-air-system
energyplus
natural-ventilation
300
views
1
answer
2
votes
2025-05-04 11:37:03 -0500
josepsolebonet@telefonica.net
Using Operative Temperature in OpenStudio instead of Air Temperature for the Thermostat
openstudio
measure
operative-temperature
energyplus
thermostat
233
views
1
answer
3
votes
2025-05-03 14:32:57 -0500
lrsanchez510
How to model defrost cycles in EnergyPlus
air-source-heat-pump
defrost
energyplus
dx-coil
output-variable
104
views
1
answer
1
vote
2025-04-28 19:16:07 -0500
shorowit
at which pressure ACH is reported in EP?
infiltration
energyplus
ach
output-variable
leakage
138
views
2
answers
1
vote
2025-04-25 13:22:41 -0500
Fred
AFN Simulation Control Azimuth Angle
energyplus
airflow-network
orientation
geometry
99
views
1
answer
1
vote
2025-04-25 13:16:47 -0500
glinn07
Downgrade E+ on mac
mac-os
installation
energyplus
version
535
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
76
views
no
answers
3
votes
2025-04-23 02:50:18 -0500
Keigo
Fatal error in zones without floor
energyplus
lighting
bug-report
geometry
72
views
1
answer
no
votes
2025-04-22 07:41:47 -0500
rraustad
Could not open file out\eplusout.mtd for output (write)
simulation-failure
energyplus
reinforcement-learning
python-plugin
51
views
no
answers
1
vote
2025-04-21 12:04:27 -0500
mep_engineer
modify weather file in doe prototype buildings
doe-prototype-buildings
energyplus
weather-file
design-day
commercial-prototype-building
222
views
no
answers
no
votes
2025-04-17 17:19:20 -0500
IanVG
Trace 3D Plus Schedule Recommendations
trane-trace
schedules
occupancy
design-day
energyplus
133
views
1
answer
2
votes
2025-04-15 16:52:48 -0500
shorowit
Issue Extracting Data from ESO files and CSV-to-EPW Conversion Using Python
eso-file
csv
python
energyplus
« previous
1
2
3
4
5
...
192
next page »
Training Workshops
Contributors
Tags
energyplus
×30
openstudio
×12
airflow-network
×4
bug-report
×4
designbuilder
×3
design-day
×3
geometry
×3
output-variable
×3
warmup
×3
convergence
×2
doe-prototype-buildings
×2
double-skin-facade
×2
fan
×2
lighting
×2
severe-error
×2
weather-file
×2
ach
×1
air-chiller
×1
air-source-heat-pump
×1
ashrae-90.1
×1
autosizing
×1
chilled-water-loop
×1
co2
×1
commercial-prototype-building
×1
commercial-reference-building
×1
compressor
×1
cooling
×1
cooling-load
×1
csv
×1
data-center
×1
defrost
×1
dx-coil
×1
epw-file
×1
eso-file
×1
exfiltration
×1
fan-coil-unit
×1
ground
×1
ground-heat-transfer
×1
hvac-control
×1
ideal-loads-air-system
×1
idf-editor
×1
idf-file
×1
infiltration
×1
initial-conditions
×1
installation
×1
internal-load
×1
leakage
×1
low-temperature-radiant
×1
mac-os
×1
measure
×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
×