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
13237
questions
Tagged
19
views
1
answer
1
vote
2026-03-10 07:45:47 -0500
rraustad
SetpointManager:MultiZone:Heating:Average
energyplus
setpoint-manager
hvac-control
air-loop
110
views
1
answer
no
votes
2026-03-09 14:18:54 -0500
Denis Bourgeois
WWR and Shading in EnergyPlus
wwr
external-shading
energyplus
63
views
1
answer
2
votes
2026-03-09 13:35:51 -0500
shorowit
BEopt Room AC % Conditioned
beopt
air-conditioner
hvac-control
81
views
2
answers
1
vote
2026-03-09 03:34:39 -0500
Behnam
How to prevent grid charging when using `TrackChargeDischargeSchedules` in `ElectricLoadCenter:Distribution`?
battery
energyplus
photovoltaic
demand-response
251
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
133
views
1
answer
3
votes
2026-03-04 20:16:52 -0500
Keigo
EnergyPlus Crashes with Optimum Start for VRF
energyplus
optimum-start
vrf
availability-manager
bug-report
311
views
1
answer
2
votes
2026-03-04 05:19:18 -0500
jordibrunet
OpenStudio Ground Source VRF Unmet Hours
openstudio
vrf
unmet-hours
openstudio-application
energyplus
134
views
no
answers
no
votes
2026-02-28 13:46:26 -0500
sandip_mep
Night Cycling in OpenStudio
openstudio-application
night-cycle
hvac-control
air-loop
fan-operation
149
views
1
answer
1
vote
2026-02-27 07:09:08 -0500
Denis Bourgeois
Why EnergyPlus does not report Conduction Heat Transfer for Window surfaces ?
energyplus
conduction
windows
heat-balance
output-variable
283
views
1
answer
1
vote
2026-02-27 05:52:29 -0500
Denis Bourgeois
How to use SurfaceProperty:OtherSideCoefficients in Open Studio?
openstudio
openstudio-application
heat-transfer
boundary-condition
71
views
1
answer
1
vote
2026-02-26 10:27:50 -0500
shorowit
Feature Request / Discussion — ZoneList Support as Key Value in Output:Variable and Meter:Custom
energyplus
output-variable
67
views
no
answers
1
vote
2026-02-25 19:30:29 -0500
José Luis Bermúdez Alcocer
EnergyPlus Error initiating text editor
energyplus
text-editor
view-options
67
views
no
answers
1
vote
2026-02-25 09:33:50 -0500
YLi
Availability Schedule Name for zonehvac:baseboard
baseboard-heater
hvac-control
energyplus
boiler
availability-schedule
111
views
1
answer
2
votes
2026-02-24 11:06:10 -0500
Yapan
Converting ResStock samples to multi-unit HPXML with inter-unit heat transfer
resstock
openstudio-hpxml
multifamily
multi-unit
inter-unit-heat-transfer
118
views
no
answers
3
votes
2026-02-24 03:28:16 -0500
Keigo
How to model Night Purge
energyplus
availability-manager
bug-report
88
views
1
answer
1
vote
2026-02-19 08:59:49 -0500
TTQI_ML
Equation Fit Water-to-air Heat Pump Object in OpenStudio
openstudio
air-to-water-heat-pump-equationfit
71
views
no
answers
1
vote
2026-02-18 19:04:15 -0500
Camlawrence
Create DOE Prototype Building-Supermarket
openstudio
openstudio-standards
doe-prototype-buildings
supermarket
97
views
1
answer
1
vote
2026-02-18 09:38:20 -0500
TTQI_ML
Handling mezzanine in OpenStudio Geometry
openstudio
geometry
gbxml
openstudio-application
120
views
1
answer
1
vote
2026-02-13 19:52:42 -0500
rraustad
EIRDefrost function for air-to-water heat pump
air-to-water-heat-pump
air-to-water-heat-pump-equationfit
energyplus
performance-curve
96
views
no
answers
no
votes
2026-02-13 15:57:23 -0500
sandip_mep
Outdoor air Cooling and Heating Load in EnergyPlus
energyplus
outdoor-air
mechanical-ventilation
143
views
no
answers
1
vote
2026-02-13 03:23:09 -0500
benjamin.mccathern@plateforme-tipee.com
SketchUp 2026 + OpenStudio Plugin Compatibility Issue – Always asks to remove OS content on open
sketchup
openstudio
openstudio-sketchup-plugin
64
views
no
answers
3
votes
2026-02-12 21:47:58 -0500
Keigo
Location of Preheat coil
ashrae-90.1
appendix-g
heating-coil
109
views
1
answer
no
votes
2026-02-12 07:40:40 -0500
rraustad
EnergyPlus-Outdoor Fresh Air
ventilation
outdoor-air
airloophvac
energyplus
openstudio-application
234
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
75
views
1
answer
1
vote
2026-02-09 14:32:05 -0500
Denis Bourgeois
I cant see ideal air load in output variables or BCL
ideal-loads-air-system
output-variable
openstudio-application
heating-load
52
views
no
answers
1
vote
2026-02-09 10:27:36 -0500
Aaron Boranian
EnergyPlus: How to Override RTU Intake Temperature Without Modifying EPW?
energyplus
outdoor-temperature
ems-control
176
views
2
answers
no
votes
2026-02-09 10:08:21 -0500
Aaron Boranian
secondary windows
openstudio
interior-window
openstudio-application
fenestration
84
views
1
answer
2
votes
2026-02-09 09:56:18 -0500
shorowit
Partially underground floor with Open studio + Sketchup plugin.
cooling-load
underground
residential
openstudio-sketchup-plugin
ground-heat-transfer
47
views
no
answers
1
vote
2026-02-08 14:11:08 -0500
Abir Ahsan
Air-to-water heat pump: Does defrost load increases total heat load?
air-to-water-heat-pump
defrost
heating-load
energyplus
200
views
1
answer
1
vote
2026-02-05 16:41:39 -0500
shorowit
The website https://bcl.nrel.gov/ is not working...
bcl
1
2
3
4
5
...
442
next page »
Training Workshops
Contributors
Tags
energyplus
×16
openstudio
×8
openstudio-application
×7
hvac-control
×4
output-variable
×3
air-loop
×2
air-to-water-heat-pump
×2
air-to-water-heat-pump-equationfit
×2
availability-manager
×2
bug-report
×2
ems-control
×2
heating-load
×2
openstudio-sketchup-plugin
×2
outdoor-air
×2
vrf
×2
air-conditioner
×1
airloophvac
×1
appendix-g
×1
ashrae-90.1
×1
availability-schedule
×1
baseboard-heater
×1
battery
×1
bcl
×1
beopt
×1
boiler
×1
boundary-condition
×1
conduction
×1
cooling-load
×1
defrost
×1
demand-response
×1
doe-prototype-buildings
×1
ems
×1
external-shading
×1
fan-operation
×1
fenestration
×1
gbxml
×1
geometry
×1
ground-heat-transfer
×1
heat-balance
×1
heating-coil
×1
heat-transfer
×1
ideal-loads-air-system
×1
interior-window
×1
inter-unit-heat-transfer
×1
lookup-table
×1
mechanical-ventilation
×1
multifamily
×1
multi-unit
×1
night-cycle
×1
openstudio-hpxml
×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
×