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 »
relevance
date ▼
activity
answers
votes
128
questions
Tagged
36
views
no
answers
no
votes
2025-11-20 14:54:06 -0600
glbrown
Using OpenStudio ver. 1.3.1 with Sketchup Plugin ver. 1.7.0 and my model has equipment and several other items which were are not active in "My Model"
openstudio
sketchup2021
openstudio-application
equipment
129
views
no
answers
no
votes
2025-10-06 15:54:52 -0600
Twose10
Different Zone Sizing Results with Different ZoneHVAC Equipment
energyplus
autosizing
sizing
zone-sizing
109
views
no
answers
no
votes
2025-05-18 10:06:19 -0600
ssjjjyyy
Cooling Energy Increase after Reducing Nominal Lighting Power
energyplus
internal-load
lighting
cooling-load
openstudio
157
views
no
answers
1
vote
2025-04-06 08:20:36 -0600
Nico001
How to link HX with supply side of condenser loop in DesignBuilder
designbuilder
ground-source-heat-pump
condenser-loop
heat-exchanger
hvac-diagram
134
views
no
answers
no
votes
2025-02-21 11:09:09 -0600
LVT
Iterative daylighting calculations EnergyPlus
daylighting
energyplus
python-plugin
co-simulation
147
views
no
answers
1
vote
2024-11-20 03:29:24 -0600
sz1980
Facility Total HVAC Electricity Demand Rate and IdealLoadsAirSystem
energy-consumption
ideal-loads-air-system
hvac
energyplus
demand
59
views
no
answers
no
votes
2024-10-11 04:37:37 -0600
sdoc99
End uses thermal zones
thermal-zone
openstudio-application
ideal-loads-air-system
openstudio-results
94
views
no
answers
no
votes
2024-10-03 10:45:19 -0600
looooic
difference between output Zone ventilation Standard density volume flow rate et Zone Mechanical Ventilation Standard Density Volume flow rate
ventilation
output
ideal-loads-air-system
energyplus
output-variable
297
views
no
answers
1
vote
2024-09-28 00:59:36 -0600
mther
Hours of Safety Report Period
hours-of-safety
openstudio
visualization
reports
thermal-resiliency
95
views
no
answers
1
vote
2024-07-05 05:16:06 -0600
Burns
Incompatibility of ExternalInterface (FMU Export) & HVACTemplate:Zone:IdealLoadsAirSystem?
error
ideal-loads-air-system
energyplus
energyplus-to-fmu
hvac-template
2k
views
no
answers
no
votes
2024-07-04 07:41:29 -0600
Diego2119
Second floor zone temperatures are way higher than the first floor
indoor-temperature
openstudio
openstudio-application
154
views
no
answers
1
vote
2024-06-28 21:54:58 -0600
RCulham
Boiler Primary Loop Temperature Not Controlled Annually Using Ideal HX to Secondary
openstudio
primary-secondary-loop
boiler
setpoint-manager
heat-exchanger
811
views
no
answers
no
votes
2024-06-27 17:59:24 -0600
Moritz Vogel
Seasonal Ventilation in OpenStudio: Outdoor Air Flow Rate Fraction Schedule has no effect
openstudio
ventilation
ideal-loads-air-system
openstudio-application
hvac-control
720
views
no
answers
1
vote
2024-09-09 18:10:37 -0600
sashadf1
Ideal Air Cooling Load but no Heating Load
district-heating
openstudio-application
heating-load
ideal-loads-air-system
111
views
no
answers
no
votes
2024-04-29 13:57:04 -0600
MapMortar
How is peakEnergyDemandByMonth calculated?
openstudio-sdk
district-cooling
sql-file
ideal-loads-air-system
peak-demand
88
views
no
answers
no
votes
2024-04-25 21:28:45 -0600
xchen
Coil:Heating sizing temperature not correct
sizing
energyplus
design-day
heating-coil
doas
93
views
no
answers
1
vote
2024-04-23 18:28:46 -0600
Aaron Boranian
Sizing warning outside of sizing period
energyplus
sizing
ideal-loads-air-system
weather-file
design-day
1k
views
no
answers
2
votes
2024-04-12 14:51:58 -0600
Greg Collins
PV / Battery Storage Algorithms, Open-source software, Python
pv
battery
python
480
views
no
answers
1
vote
2024-01-03 21:31:05 -0600
JustinLueker
Model crashes with Refrigeration:WalkIn object coupled to Refrigeration:CompressorRack object when heat transfer location is set to "Zone".
refrigeration
walk-in
energyplus
refrigeration-equipment
crash
136
views
no
answers
1
vote
2023-12-20 13:47:12 -0600
Tim
Metering Ideal Air Loads in EnergyPlus
ideal-loads-air-system
energyplus
output-meter
246
views
no
answers
no
votes
2023-12-19 10:49:55 -0600
Elena R
What is the meaning of this output variable: "Zone Ideal Loads Zone Total Heating Energy"?
output-variable
euclid
energyplus
ideal-loads-air-system
heating-load
100
views
no
answers
1
vote
2023-12-05 10:47:49 -0600
IanVG
Error Running IdealAirLoadsZoneHVAC OpenStudio Measure
openstudio
openstudio-measure
ideal-loads-air-system
error
openstudio-application
699
views
no
answers
1
vote
2023-12-12 11:41:07 -0600
jassociate
OpenStudio Results Report - "Energy Use" values significantly higher than "End Use"
openstudio
measure
commercial-prototype-building
summary-report
229
views
no
answers
1
vote
2023-09-15 05:28:49 -0600
DPalma
Sensible Heat Gain Summary Hourly
summary
peak-demand
output-variable
ideal-loads-air-system
energyplus
1k
views
no
answers
1
vote
2023-09-06 11:57:34 -0600
payam
why the ventilation load calculation results in energy plus and HAP are different?
openstudio
energyplus
ventilation
ashrae-62.1
heating-load
119
views
no
answers
1
vote
2023-06-07 07:31:24 -0600
rn
BSDF shade results significantly changes then comparing versions of E+
bsdf
energyplus
blind
berkeley-window
82
views
no
answers
1
vote
2023-05-22 10:54:08 -0600
jpierce
CERV/ATU/VHP in BEopt?
beopt
erv
129
views
no
answers
no
votes
2023-04-18 01:29:26 -0600
ajn2000
Modelling an active Trombe wall in conjunction with an ideal air loads system
trombe-wall
ideal-loads-air-system
air-loop
hvac-control
energyplus
424
views
no
answers
1
vote
2023-03-23 07:58:07 -0600
dhollman
Is it possible to disable regex for Output:Variable?
energyplus
regular-expressions
output-variable
115
views
no
answers
no
votes
2023-03-13 04:29:10 -0600
Katerina Karanafti
Proper energy needs output variable for an IdealLoadsAirSystem
energyplus
output-variable
ideal-loads-air-system
hvac-load
1
2
3
4
5
next page »
Training Workshops
Contributors
Tags
energyplus
×17
ideal-loads-air-system
×14
openstudio
×9
openstudio-application
×6
output-variable
×5
heating-load
×3
sizing
×3
ventilation
×3
design-day
×2
error
×2
heat-exchanger
×2
hvac-control
×2
peak-demand
×2
air-loop
×1
ashrae-62.1
×1
autosizing
×1
battery
×1
beopt
×1
berkeley-window
×1
blind
×1
boiler
×1
bsdf
×1
commercial-prototype-building
×1
condenser-loop
×1
cooling-load
×1
co-simulation
×1
crash
×1
daylighting
×1
demand
×1
designbuilder
×1
district-cooling
×1
district-heating
×1
doas
×1
energy-consumption
×1
energyplus-to-fmu
×1
equipment
×1
erv
×1
euclid
×1
ground-source-heat-pump
×1
heating-coil
×1
hours-of-safety
×1
hvac
×1
hvac-diagram
×1
hvac-load
×1
hvac-template
×1
indoor-temperature
×1
internal-load
×1
lighting
×1
measure
×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
×
.jpg "dradair")
