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
13221
questions
Tagged
40
views
no
answers
no
votes
2026-02-13 15:57:23 -0600
sandip_mep
Outdoor air Cooling and Heating Load in EnergyPlus
energyplus
outdoor-air
mechanical-ventilation
62
views
no
answers
1
vote
2026-02-13 03:23:09 -0600
benjamin.mccathern@plateforme-tipee.com
SketchUp 2026 + OpenStudio Plugin Compatibility Issue – Always asks to remove OS content on open
sketchup
openstudio
openstudio-sketchup-plugin
29
views
no
answers
3
votes
2026-02-12 21:47:58 -0600
Keigo
Location of Preheat coil
ashrae-90.1
appendix-g
heating-coil
75
views
1
answer
no
votes
2026-02-12 07:40:40 -0600
rraustad
EnergyPlus-Outdoor Fresh Air
ventilation
outdoor-air
airloophvac
energyplus
openstudio-application
81
views
1
answer
1
vote
2026-02-13 19:52:42 -0600
rraustad
EIRDefrost function for air-to-water heat pump
air-to-water-heat-pump
air-to-water-heat-pump-equationfit
energyplus
performance-curve
24
views
no
answers
1
vote
2026-02-08 14:11:08 -0600
Abir Ahsan
Air-to-water heat pump: Does defrost load increases total heat load?
air-to-water-heat-pump
defrost
heating-load
energyplus
137
views
2
answers
no
votes
2026-02-09 10:08:21 -0600
Aaron Boranian
secondary windows
openstudio
interior-window
openstudio-application
fenestration
52
views
1
answer
2
votes
2026-02-09 09:56:18 -0600
shorowit
Partially underground floor with Open studio + Sketchup plugin.
cooling-load
underground
residential
openstudio-sketchup-plugin
ground-heat-transfer
47
views
1
answer
1
vote
2026-02-09 14:32:05 -0600
Denis Bourgeois
I cant see ideal air load in output variables or BCL
ideal-loads-air-system
output-variable
openstudio-application
heating-load
17
views
no
answers
2
votes
2026-02-03 14:21:47 -0600
Brimbor1224
Is the supply-air temperature a variable that exists among the outputs in BeOpt?
beopt
dview
output
hvac
supply-temperature
42
views
no
answers
1
vote
2026-02-03 08:53:56 -0600
BShah
eQUEST hourly AMY 2024-2025 Toronto weather files
equest
amy
weather
weather-file
76
views
no
answers
1
vote
2026-01-30 06:14:38 -0600
Mads
How to use a BSDF file for window shading in EnergyPlus
energyplus
shading
bsdf
56
views
1
answer
1
vote
2026-02-09 14:36:27 -0600
Jamie Sullivan
Handling mezzanine in OpenStudio Geometry
openstudio
geometry
gbxml
openstudio-application
31
views
no
answers
1
vote
2026-02-09 10:27:36 -0600
Aaron Boranian
EnergyPlus: How to Override RTU Intake Temperature Without Modifying EPW?
energyplus
outdoor-temperature
ems-control
104
views
no
answers
1
vote
2026-01-28 16:57:19 -0600
Denis Bourgeois
Hello, I'm trying to Modeling Ice Thermal Energy Storage in OpenStudio
openstudio
ice-storage
openstudio-application
hvac-control
chilled-water-loop
169
views
1
answer
1
vote
2026-02-05 16:41:39 -0600
shorowit
The website https://bcl.nrel.gov/ is not working...
bcl
148
views
1
answer
1
vote
2026-01-26 11:51:02 -0600
rraustad
Supplemental Heating Coil Not Responding to Load Request
dx-coil
unitary-system
energyplus
hvac-control
hot-water-loop
151
views
2
answers
1
vote
2026-01-27 11:42:26 -0600
chenkianwee
I am trying to set "CoilCoolingWaterPanelRadiant.setCoolingControlTemperatureSchedule" but keep getting 'incompatible ScheduleTypeLimits' error OpenstudioSDK 3.10.0
openstudio
cooling
radiant-panel
openstudio-sdk
schedule
216
views
1
answer
1
vote
2026-01-27 07:16:03 -0600
Denis Bourgeois
Is there a guide or manual on how to use EnergyPlus & OpenStudio to model a well insulated passive solar 1 or 2 storey house with direct gain or sunspace or trombe wall at latitude 52 deg North?
energyplus
openstudio
passive-house
350
views
1
answer
1
vote
2026-01-25 10:28:21 -0600
Denis Bourgeois
How to add Phase Change Material to open studio?
energyplus
openstudio
pcm
phase-change-material
swig
115
views
no
answers
no
votes
2026-01-21 16:00:28 -0600
Abir Ahsan
Adding duct leakage losses on predicted zone heating load
duct
leakage
ems-control
zone-load
131
views
no
answers
no
votes
2026-01-21 10:26:28 -0600
mdeslauriers
OpenStudio / EnergyPlus Support for Refrigeration Heat Reclaim from Transcritical Gas Coolers
openstudio
energyplus
refrigeration
desuperheater
transcritical
187
views
1
answer
1
vote
2026-01-21 16:18:08 -0600
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
134
views
no
answers
no
votes
2026-01-18 17:16:43 -0600
sandip_mep
Need help with Energyplus MCP server
energyplus
energyplus-mcp
error
114
views
1
answer
1
vote
2026-01-20 11:58:01 -0600
shorowit
Duct Leakage in EnergyPlus
energyplus
openstudio
openstudio-application
duct
air-loop
300
views
1
answer
no
votes
2026-01-13 14:46:53 -0600
Abir Ahsan
FANS Internal Gains
gain
energyplus
openstudio
electrical
equipment
210
views
1
answer
no
votes
2026-02-09 16:10:55 -0600
ericmartinpe
Calling lookup tables from the EMS
ems
lookup-table
energyplus
ems-control
59
views
no
answers
no
votes
2026-01-11 15:21:25 -0600
sandip_mep
OpenStudio version 3.9 Radiance Scene Rendering
radiance
daylight-metrics
rendering
openstudio
97
views
1
answer
no
votes
2026-01-13 08:52:45 -0600
Drew Morrison
Sketchbox EEM Results
sketchbox
results
106
views
no
answers
1
vote
2026-01-12 11:48:21 -0600
Aaron Boranian
Open Studio - "Heating coil air heating energy" error
openstudio
openstudio-application
energyplus
severe-error
output-meter
1
2
3
4
5
...
441
next page »
Training Workshops
Contributors
Tags
energyplus
×15
openstudio
×13
openstudio-application
×7
ems-control
×3
air-to-water-heat-pump
×2
duct
×2
heating-load
×2
hvac-control
×2
openstudio-sketchup-plugin
×2
outdoor-air
×2
radiant-panel
×2
air-loop
×1
airloophvac
×1
air-to-water-heat-pump-equationfit
×1
amy
×1
appendix-g
×1
ashrae-90.1
×1
bcl
×1
beopt
×1
bsdf
×1
chilled-water-loop
×1
cooling
×1
cooling-load
×1
daylight-metrics
×1
defrost
×1
desuperheater
×1
dview
×1
dx-coil
×1
electrical
×1
ems
×1
energyplus-mcp
×1
equest
×1
equipment
×1
error
×1
fenestration
×1
gain
×1
gbxml
×1
geometry
×1
ground-heat-transfer
×1
heating-coil
×1
hot-water-loop
×1
hvac
×1
ice-storage
×1
ideal-loads-air-system
×1
interior-window
×1
leakage
×1
lookup-table
×1
mechanical-ventilation
×1
openstudio-sdk
×1
outdoor-temperature
×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
×