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
3620
questions
Tagged
68
views
no
answers
no
votes
2026-08-07 14:27:40 -0500
MaRe
Cannot finish polygon in FloorSpaceJS (OpenStudio 3.11.0)
openstudio-application
floorspace-js
geometry
44
views
no
answers
no
votes
2026-08-05 21:13:20 -0500
Student831
Why is there a room temperature oscillation?
hvac
cooling
energyplus
hvac-control
openstudio-application
119
views
no
answers
1
vote
2026-07-16 11:42:23 -0500
adriciardi
Modeling a Water Loop Heat Pump (WLHP) System with Reversible Air-to-Water HP and Thermal Storage in DesignBuilder
air-to-water-heat-pump
air-source-heat-pump
central-heat-pump-system
designbuilder
hvac-diagram
46
views
no
answers
1
vote
2026-07-10 03:02:38 -0500
evi_c
Air mass flow rate equation in ZoneHVAC:Baseboard:RadiantConvective:Water
energyplus
baseboard-heater
sizing
96
views
no
answers
no
votes
2026-07-09 00:50:29 -0500
Nick1234
Maximum Airflow available through an ERV
energy-recovery-ventilator
651
views
no
answers
no
votes
2026-06-25 11:50:39 -0500
muhl
Calibration for OS-HPXML: Utility Bill Data period ordering
openstudio-hpxml
calibration
bpi
98
views
no
answers
no
votes
2026-06-22 03:31:28 -0500
Jack Lee
Modelica: single family house model validation
modelica
energyplus
validation
115
views
no
answers
1
vote
2026-05-28 17:47:45 -0500
Nick1234
Not enough heat during Night Cycle
openstudio
night-cycle
fan
152
views
no
answers
1
vote
2026-05-26 07:30:36 -0500
cloudbase9
cathedral roof modeling in floorspace.js
floorspace.js
cathedral
roof
geometry
attic
545
views
no
answers
no
votes
2026-05-19 04:33:05 -0500
Nasrin
Modelling dehumidification with Simple HVAC in DesignBuilder for a hot-humid climate
designbuilder
simple-hvac
humidity-control
dehumidification
9k
views
no
answers
1
vote
2026-05-13 14:12:46 -0500
cory fulton
why are the main air handler heating coils zero capacity in the DOE commercial prototype model for outpatient healthcare
doe-prototype-buildings
hot-water-coils
vav-system
151
views
no
answers
1
vote
2026-04-28 15:34:33 -0500
dradair
CFD geometry creation
cfd
geometry
revit
import
export
242
views
no
answers
no
votes
2026-04-17 12:36:55 -0500
Lissette97
Understading step size (Δ) in Morris Method /jEPlus
morris
method
jeplus
188
views
no
answers
1
vote
2026-04-17 05:34:47 -0500
fcegnam
Openstudio 3.10 installation issues
openstudio-3.10
129
views
no
answers
1
vote
2026-04-13 09:39:33 -0500
Aaron Boranian
recording energy usage for SHW in energy+
shw
service-hot-water
energyplus
output-meter
173
views
no
answers
1
vote
2026-04-17 17:06:28 -0500
RCulham
How to you set up DHW loops with indirect storage tanks?
openstudio
service-hot-water
plant-loop
indirect-heating
openstudio-application
117
views
no
answers
2
votes
2026-03-30 16:02:28 -0500
Camlawrence
Parasitic Energy Use - Prototype Buildings
doe-prototype-buildings
openstudio-standards
energyplus
water-heater
commercial-prototype-building
157
views
no
answers
no
votes
2026-03-19 03:11:14 -0500
jdmarrufo
output values of Buildings.Fluid.HeatExchangers.WetCoilEffectivenessNTU
coil
modelica
modelica-buildings-library
output
151
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
316
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
107
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
120
views
no
answers
1
vote
2026-02-03 08:53:56 -0500
BShah
eQUEST hourly AMY 2024-2025 Toronto weather files
equest
amy
weather
weather-file
186
views
no
answers
1
vote
2026-01-30 06:14:38 -0500
Mads
How to use a BSDF file for window shading in EnergyPlus
energyplus
shading
bsdf
120
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
184
views
no
answers
1
vote
2026-01-28 16:57:19 -0500
Denis Bourgeois
Hello, I'm trying to Modeling Ice Thermal Energy Storage in OpenStudio
openstudio
ice-storage
openstudio-application
hvac-control
chilled-water-loop
174
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
230
views
no
answers
no
votes
2026-01-18 17:16:43 -0500
sandip_mep
Need help with Energyplus MCP server
energyplus
energyplus-mcp
error
111
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
163
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
151
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
1
2
3
4
5
...
121
next page »
Contributors
Tags
energyplus
×11
openstudio
×7
openstudio-application
×5
doe-prototype-buildings
×3
geometry
×3
air-to-water-heat-pump
×2
designbuilder
×2
ems-control
×2
hvac-control
×2
modelica
×2
openstudio-standards
×2
output-meter
×2
service-hot-water
×2
air-source-heat-pump
×1
amy
×1
attic
×1
baseboard-heater
×1
bpi
×1
bsdf
×1
calibration
×1
cathedral
×1
central-heat-pump-system
×1
cfd
×1
chilled-water-loop
×1
coil
×1
commercial-prototype-building
×1
cooling
×1
daylight-metrics
×1
defrost
×1
dehumidification
×1
duct
×1
energyplus-mcp
×1
energy-recovery-ventilator
×1
equest
×1
error
×1
export
×1
fan
×1
floorspace-js
×1
floorspace.js
×1
heating-load
×1
hot-water-coils
×1
humidity-control
×1
hvac
×1
hvac-diagram
×1
ice-storage
×1
import
×1
indirect-heating
×1
jeplus
×1
leakage
×1
method
×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
×