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
13267
questions
Tagged
152
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
150
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
587
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
252
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
327
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
827
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
224
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
91
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
165
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
269
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
325
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
105
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
126
views
no
answers
no
votes
2026-01-05 11:44:18 -0500
Eric
Changeover Bypass System with Airside Economizer
energyplus
economizer
air-loop
bypass
111
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
351
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
149
views
1
answer
no
votes
2026-01-07 10:41:44 -0500
shorowit
OpenStudio Radiance Measure
radiance
openstudio
error
101
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
198
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
144
views
no
answers
no
votes
2026-01-07 16:32:32 -0500
DWhitsett
App for displaying illuminance maps?
daylighting
illuminance-map
visualization
123
views
no
answers
1
vote
2026-01-08 06:12:14 -0500
Emanuela
Major operative temperature difference between EP 2023.2 and 2025.2
version-conversion
energyplus
operative-temperature
136
views
no
answers
1
vote
2026-01-12 11:48:21 -0500
Aaron Boranian
Open Studio - "Heating coil air heating energy" error
openstudio
openstudio-application
energyplus
severe-error
output-meter
143
views
1
answer
no
votes
2026-01-13 08:52:45 -0500
Drew Morrison
Sketchbox EEM Results
sketchbox
results
89
views
no
answers
no
votes
2026-01-11 15:21:25 -0500
sandip_mep
OpenStudio version 3.9 Radiance Scene Rendering
radiance
daylight-metrics
rendering
openstudio
289
views
1
answer
no
votes
2026-02-09 16:10:55 -0500
ericmartinpe
Calling lookup tables from the EMS
ems
lookup-table
energyplus
ems-control
387
views
1
answer
no
votes
2026-01-13 14:46:53 -0500
Abir Ahsan
FANS Internal Gains
gain
energyplus
openstudio
electrical
equipment
216
views
1
answer
1
vote
2026-01-20 11:58:01 -0500
shorowit
Duct Leakage in EnergyPlus
energyplus
openstudio
openstudio-application
duct
air-loop
186
views
no
answers
no
votes
2026-01-18 17:16:43 -0500
sandip_mep
Need help with Energyplus MCP server
energyplus
energyplus-mcp
error
371
views
2
answers
2
votes
2026-03-06 13:35:46 -0500
chenkianwee
How Do I set the "Field Set: Surface Name, Fraction of Radiant Energy to Surface" parameter for my "ZoneHVACCoolingPanelRadiantConvectiveWater" using OpenStudioSDK
radiant-panel
openstudio
473
views
1
answer
2
votes
2026-05-04 05:04:13 -0500
PmP
OpenStudio / EnergyPlus Support for Refrigeration Heat Reclaim from Transcritical Gas Coolers
openstudio
energyplus
refrigeration
desuperheater
transcritical
146
views
no
answers
no
votes
2026-01-21 16:00:28 -0500
Abir Ahsan
Adding duct leakage losses on predicted zone heating load
duct
leakage
ems-control
zone-load
« previous
1
...
439
440
441
442
443
next page »
Contributors
Tags
energyplus
×18
openstudio
×12
ems-control
×4
air-loop
×3
hvac-control
×3
openstudio-application
×3
ashrae-90.1
×2
bypass
×2
designbuilder
×2
duct
×2
economizer
×2
error
×2
geometry
×2
radiance
×2
radiation
×2
results
×2
vrf
×2
airflow
×1
apache-hvac
×1
calibration
×1
coefficient
×1
cool-reheat
×1
daylighting
×1
daylight-metrics
×1
defrost
×1
designbuilder-results-viewer
×1
desuperheater
×1
detailed-hvac
×1
electrical
×1
ems
×1
energyplus-mcp
×1
eppy
×1
epw-file
×1
equipment
×1
euclid
×1
gain
×1
gems
×1
heating-coil
×1
heating-system
×1
heat-transfer
×1
hvac-template
×1
ies-ve
×1
illuminance-map
×1
jeplus+ea
×1
leakage
×1
leed
×1
library
×1
long-wave-radiation
×1
lookup-table
×1
openstudio-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
×