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 ▼
13162
questions
Tagged
72
views
no
answers
no
votes
2025-06-25 14:52:03 -0600
xaelzephyr
pyfmi cosim can't change tolerance
pyfmi
xtol
tol
energyplus
open-modelica
48
views
no
answers
no
votes
2025-06-25 14:52:31 -0600
xaelzephyr
tolerance not being inputted [closed]
pyfmi
xtol
tol
energyplus
open-modelica
83
views
no
answers
no
votes
2025-06-26 02:28:46 -0600
Ohanbali
Invalid unitary system control zone: air loop unitary HP air to air [closed]
designbuilder
unitary-system
low-temperature-radiant
error
hvac
217
views
1
answer
no
votes
2025-06-30 12:36:01 -0600
Manny
HOW DO I GET OUTPUTS FOR ELECTRICITY AND GAS COST?
utility-cost
electricity-cost
gas-cost
energyplus
output-variable
146
views
no
answers
no
votes
2025-06-26 12:46:54 -0600
mariaheloisa070@gmail.com
I'm having trouble modeling in OpenStudio. The windows are not being recognized. The doors appear correctly, but the windows are not showing up or being detected by OpenStudio. Has anyone experienced this issue or knows how to fix it?
windows
openstudio
geometry
sketchup
openstudio-sketchup-plugin
64
views
no
answers
no
votes
2025-06-27 05:08:28 -0600
Yunasm
Request for Application Version Notification Process (Cyber Essentials Requirement) [closed]
openstudio
openstudio-application
version
71
views
no
answers
no
votes
2025-06-27 05:08:28 -0600
Yunasm
Request for Application Version Notification Process (Cyber Essentials Requirement) [closed]
openstudio
openstudio-application
version
107
views
no
answers
no
votes
2025-06-27 05:08:29 -0600
Yunasm
Request for Application Version Notification Process (Cyber Essentials Requirement)
openstudio
openstudio-application
version
206
views
1
answer
no
votes
2025-07-22 13:48:16 -0600
ericmartinpe
How to model a Hot Air Source in Energyplus.
energyplus
heat-recovery
air-to-air
outdoor-air
91
views
no
answers
no
votes
2025-06-29 11:53:18 -0600
jaksaaa555
I need help, started using this programme [closed]
openstudio
openstudio-sketchup-plugin
surface-matching
geometry
boundary-condition
301
views
2
answers
no
votes
2025-07-16 22:37:46 -0600
yiyuan-jia
Method of introducing outside air using "ideal load system"
ideal-loads-air-system
outdoor-air
mechanical-ventilation
energyplus
61
views
no
answers
no
votes
2025-06-30 04:18:07 -0600
Twose10
Unexpected Negative Conduction during Hot Outdoor Temperatures [closed]
conduction
heat-gain
energyplus
heat-balance
building-envelope
92
views
no
answers
no
votes
2025-06-30 09:49:36 -0600
jaksaaa555
Matching Surfaces and Intersecting Surfaces problem [closed]
openstudio
openstudio-sketchup-plugin
surface-matching
geometry
boundary-condition
124
views
1
answer
no
votes
2025-07-03 20:19:37 -0600
Greg Estep
OpenStudio - Overall Heating System Efficiency?
openstudio
heating
heating-load
energy-loads
198
views
1
answer
no
votes
2025-07-14 21:55:25 -0600
Keigo
Conditioned Parking Garage
parking
garage
ashrae-90.1
space-type
107
views
no
answers
no
votes
2025-07-02 00:25:53 -0600
Pranav Deshmukh
True Peak Load Occurs on Unexpected Day — How to Identify Peak Date from Solar Gains and Geometry? [closed]
energyplus
geometry
solar-gain
peak-load
design-day
129
views
no
answers
no
votes
2025-07-02 01:25:24 -0600
Pranav Deshmukh
Automatically Identifying the “True” Design Day Date to Match Known Peak Loads? [closed]
energyplus
geometry
solar-gain
peak-load
design-day
110
views
no
answers
no
votes
2025-07-02 10:17:28 -0600
Anurag_G
Clarification on Baseline System Modeling for Data Center with Free Cooling
ashrae-90.1
data-center
energy-consumption
free-cooling
237
views
1
answer
no
votes
2025-07-07 13:21:40 -0600
MarcosH
How simulate a GSHP coupled to TABS in OS?
ground-source-heat-pump
low-temperature-radiant
openstudio
openstudio-application
plant-loop
191
views
1
answer
no
votes
2025-07-08 05:38:58 -0600
kwalkerman
Pipe length between supply and demand side?
hvac
pipe
indoor-pipe
hvac-diagram
energyplus
295
views
no
answers
no
votes
2025-07-03 07:13:40 -0600
Maysam
Error in using EnergyPlus FMU
error
fmu
energyplus
energyplus-to-fmu
bug-report
656
views
1
answer
no
votes
2025-09-23 15:39:03 -0600
cy
Atmospheric data for sky generation
radiance
gensky
error
122
views
1
answer
no
votes
2025-07-07 07:48:43 -0600
kwalkerman
How to simulate EnergyPlus with different time interval schedule?
schedule
energyplus
severe-error
people
65
views
no
answers
no
votes
2025-07-07 00:50:07 -0600
Sk
Empty Output Fields in .csv File from jEPlus Despite Successful Simulation [closed]
jeplus
openstudio
66
views
no
answers
no
votes
2025-07-08 09:50:15 -0600
josepsolebonet@telefonica.net
Heating SET Degree hours Table [closed]
heating
degree-hours
energyplus
openstudio-application
summary-report
175
views
no
answers
no
votes
2025-07-10 15:30:50 -0600
sandip_mep
Wireframe issues in sketchup osm model
openstudio
openstudio-sketchup-plugin
geometry
surface-matching
surface-intersecting
139
views
no
answers
no
votes
2025-07-13 15:21:29 -0600
Denis Bourgeois
Rendering by normal, in sketchup and what are the concequences
openstudio-application
door
rendering
openstudio-sketchup-plugin
geometry
49
views
no
answers
no
votes
2025-07-13 10:39:09 -0600
oren
Low emissivity white
emissivity
radiant-barrier
158
views
no
answers
no
votes
2025-07-13 12:25:00 -0600
jaksaaa555
Some windows and doors not displaying correctly in OpenStudio 3D viewer – inconsistent transparency and visibility [closed]
openstudio
sketchup
3d-viewer
subsurface
modeling-issue
246
views
1
answer
no
votes
2025-07-17 18:40:46 -0600
sandip_mep
Ventillation in Openstudio
ventilation
openstudio
energyplus
summary-report
infiltration
« previous
1
...
432
433
434
435
436
...
439
next page »
Training Workshops
Contributors
Tags
energyplus
×13
openstudio
×12
geometry
×7
openstudio-application
×6
openstudio-sketchup-plugin
×5
error
×3
surface-matching
×3
version
×3
ashrae-90.1
×2
boundary-condition
×2
design-day
×2
heating
×2
hvac
×2
low-temperature-radiant
×2
open-modelica
×2
outdoor-air
×2
peak-load
×2
pyfmi
×2
sketchup
×2
solar-gain
×2
summary-report
×2
tol
×2
xtol
×2
3d-viewer
×1
air-to-air
×1
bug-report
×1
building-envelope
×1
conduction
×1
data-center
×1
degree-hours
×1
designbuilder
×1
door
×1
electricity-cost
×1
emissivity
×1
energy-consumption
×1
energy-loads
×1
energyplus-to-fmu
×1
fmu
×1
free-cooling
×1
garage
×1
gas-cost
×1
gensky
×1
ground-source-heat-pump
×1
heat-balance
×1
heat-gain
×1
heating-load
×1
heat-recovery
×1
hvac-diagram
×1
ideal-loads-air-system
×1
indoor-pipe
×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
×