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
13278
questions
Tagged
213
views
1
answer
1
vote
2026-01-09 11:52:21 -0500
Greg Estep
Designbuilder - HVAC
designbuilder
detailed-hvac
hvac-control
leed
ashrae-90.1
110
views
no
answers
1
vote
2026-01-08 04:56:06 -0500
grandux
Is It Possible to Implement RH-Based Cool–Reheat Control for VRF Terminals Using EMS in OpenStudio?
openstudio
vrf
energyplus
ems-control
hvac-control
163
views
1
answer
no
votes
2026-01-07 10:41:44 -0500
shorowit
OpenStudio Radiance Measure
radiance
openstudio
error
358
views
no
answers
no
votes
2026-01-06 10:27:21 -0500
Mariha
Shading surfaces and radiation in EnergyPlus
shading
radiation
solar-radiation
long-wave-radiation
energyplus
116
views
no
answers
no
votes
2026-01-06 02:24:39 -0500
Jack Lee
Set constant radiation heat transfer coefficient
energyplus
radiation
coefficient
heat-transfer
132
views
no
answers
no
votes
2026-01-05 11:44:18 -0500
Eric
Changeover Bypass System with Airside Economizer
energyplus
economizer
air-loop
bypass
117
views
no
answers
no
votes
2026-01-05 11:43:00 -0500
Eric
Changeover Bypass System with Airside Economizer [closed]
energyplus
economizer
air-loop
bypass
341
views
2
answers
2
votes
2026-01-18 09:26:39 -0500
kwalkerman
EnergyPlus geometry GUI with IDF round-trip compatibility (Euclid replacement?)
euclid
sketchup
geometry
eppy
energyplus
296
views
1
answer
1
vote
2026-01-05 10:13:17 -0500
Aaron Boranian
Modeling VRF Hot Gas Reheat (Cooling + Reheat) in EnergyPlus/OpenStudio
vrf
reheat
cool-reheat
energyplus
openstudio
168
views
1
answer
no
votes
2026-01-05 08:54:40 -0500
Luís Filipe Sousa
DesignBuilder Result viewer with tm54 data doesn't launch
designbuilder-results-viewer
designbuilder
results
100
views
no
answers
1
vote
2025-12-27 07:58:11 -0500
lorenzo.masotti
Errno::EINVAL: Invalid argument - Revit
revit
openstudio
openstudio-measure
ruby
gems
231
views
no
answers
1
vote
2025-12-26 01:27:25 -0500
hasibi
How do I optimize in JE+EA based on an objective which is normalized by a changing Area value?
jeplus+ea
optimization
geometry
833
views
no
answers
no
votes
2025-12-19 03:57:19 -0500
Lauracusu
How can I find the values of the endogenous variables that make up the cooling demand?
energyplus
openstudio
334
views
no
answers
2
votes
2025-12-22 13:44:54 -0500
Aaron Boranian
Coil:Heating:DX:SingleSpeed output mismatch query
heating-coil
energyplus
ems-control
output-variable
defrost
271
views
1
answer
3
votes
2026-01-12 18:58:37 -0500
Neil Bulger
VE IES Apache - Thermostat Changing Vent Minimum?
airflow
apache-hvac
ies-ve
hvac-control
592
views
no
answers
no
votes
2025-12-15 11:23:58 -0500
Mouuna
ashrae 90.1 2010 spaces types and templates in openstudio 1.10.0
ashrae-90.1
openstudio
openstudio-application
library
calibration
157
views
no
answers
2
votes
2025-12-12 09:05:26 -0500
getEPW
Recent geolocation based EPW files
energyplus
weather-data
solar
wind
epw-file
159
views
no
answers
no
votes
2025-12-10 08:05:18 -0500
Hevar
EnergyPlus Load Conversion issue when switching from System:Unitary to System:UnitarySystem
hvac-template
power
unitary-system
heating-system
energyplus
224
views
no
answers
3
votes
2025-12-09 02:15:11 -0500
Lyse_F
Unstable behavior of RadiantConvective Baseboard Heaters with an air-water heat pump
baseboard-heater
heat-pump
plant-loop
energyplus
hvac-control
781
views
1
answer
no
votes
2025-12-08 07:12:47 -0500
Julien Marrec
running idf against energyplus.exe
idf-file
energyplus-cli
energyplus
ep-launch
output
757
views
no
answers
no
votes
2025-12-06 11:54:04 -0500
RobinCris
Run idf file from console [closed]
idf-file
energyplus-cli
energyplus
ep-launch
output
263
views
1
answer
3
votes
2025-12-15 14:51:26 -0500
Gio_GG
EV behaivour about fractional charging at home
electric-vehicles
schedules
resstock
194
views
no
answers
1
vote
2025-12-03 17:07:03 -0500
RaeN
Issues Running “Create ASHRAE 90.1-2019 PRM Model” measure in OpenStudio
openstudio
openstudio-standards
ashrae-90.1
performance-rating-method
openstudio-sdk
376
views
2
answers
1
vote
2025-12-10 17:36:00 -0500
ashopinion
Envelope Derating
building-envelope
envelope
thermal-bridge
213
views
1
answer
1
vote
2025-12-05 09:52:45 -0500
Greg Estep
How to define different AHU airflow rates for cooling and heating in DesignBuilder?
designbuilder
airflow
cooling
heating
ahu
321
views
1
answer
no
votes
2025-12-01 05:30:48 -0500
Denis Bourgeois
HOW TO COPY CONSTRUCTIONS AND MATERIALS
openstudio
construction
material
openstudio-application
316
views
1
answer
1
vote
2025-12-01 11:11:57 -0500
shorowit
EMS does not turn off ideal load
energyplus
ems
ideal-loads-air-system
ems-control
natural-ventilation
134
views
no
answers
no
votes
2025-11-26 16:24:52 -0500
sandip_mep
constant indoor humidity ratio
dehumidification
energy-balance
energyplus
relative-humidity
hvac-control
240
views
1
answer
2
votes
2025-11-27 03:17:28 -0500
PmP
Question About EMS:Sensor and People with Space/SpaceList in EnergyPlus 23.1+
people
ems
pmv
space
energyplus
267
views
1
answer
1
vote
2025-11-26 19:27:00 -0500
eda
How can I assign different floor (slab) constructions to different rooms on the same floor, if the construction set only allows one default floor construction?
construction-set
openstudio
openstudio-application
floor
« previous
1
2
3
4
5
...
443
next page »
Contributors
Tags
energyplus
×17
openstudio
×9
hvac-control
×5
ashrae-90.1
×3
designbuilder
×3
ems-control
×3
openstudio-application
×3
airflow
×2
air-loop
×2
bypass
×2
economizer
×2
ems
×2
energyplus-cli
×2
ep-launch
×2
geometry
×2
idf-file
×2
output
×2
radiation
×2
vrf
×2
ahu
×1
apache-hvac
×1
baseboard-heater
×1
building-envelope
×1
calibration
×1
coefficient
×1
construction
×1
construction-set
×1
cooling
×1
cool-reheat
×1
defrost
×1
dehumidification
×1
designbuilder-results-viewer
×1
detailed-hvac
×1
electric-vehicles
×1
energy-balance
×1
envelope
×1
eppy
×1
epw-file
×1
error
×1
euclid
×1
floor
×1
gems
×1
heating
×1
heating-coil
×1
heating-system
×1
heat-pump
×1
heat-transfer
×1
hvac-template
×1
ideal-loads-air-system
×1
ies-ve
×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
×