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251
questions
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212
views
1
answer
1
vote
2026-01-21 07:00:01 -0600
PmP
Fluid Cooler / Refrigeration Condenser Loop Turns Off Mid-Year in EnergyPlus (with persistent “No Cooling Water Flow” warnings)
openstudio
energyplus
fluid-cooler
warning
condenser-loop
225
views
1
answer
no
votes
2025-11-10 13:47:17 -0600
Denis Bourgeois
Need help fixing an input format error
severe-error
idf
energyplus
surface
geometry
229
views
1
answer
2
votes
2025-06-28 13:48:14 -0600
nemo
"Bad allocation" error in EnergyPlus 25.1 with hydronic radiant floor + air-to-water heat pump
energyplus
radiant-heating
air-to-water-heat-pump
sizing-error
low-temperature-radiant
107
views
no
answers
1
vote
2025-05-26 17:57:30 -0600
Jamie Sullivan
AFN zone ventilation not reported during warmup?
energyplus
airflow-network
warmup
output-variable
221
views
1
answer
2
votes
2025-05-26 03:44:11 -0600
Julien Marrec
Access to a warmUpFlag to pass in an FMU cosim
warmup
energyplus
energyplus-to-fmu
ems-control
external-interface
429
views
1
answer
2
votes
2025-05-16 02:36:33 -0600
Ski90Moo
OpenStudio Convergence Error
openstudio
convergence
severe-error
energyplus
warmup
865
views
1
answer
1
vote
2025-05-16 02:11:56 -0600
Ski90Moo
HAVC did not converge after 25 warmup days.
energyplus
severe-error
warmup
convergence
393
views
2
answers
2
votes
2025-05-12 20:19:53 -0600
Jamie Sullivan
EnergyPlus ground domain - Slab-ON-grade with vertical perimeter insulation
energyplus
designbuilder
ground-heat-transfer
ground
207
views
2
answers
no
votes
2025-05-06 17:38:19 -0600
Aaron Boranian
Initial temperature unmatching
energyplus
airflow-network
initial-conditions
warmup
130
views
no
answers
no
votes
2025-04-13 21:32:01 -0600
antonszilasi
Open Studio water heater direct query failing.
openstudio
water-heater
openstudio-application
dhw
energyplus
608
views
2
answers
4
votes
2025-04-03 16:48:16 -0600
ericmartinpe
Ground Slab Preprocessor Issue
energyplus
slab-preprocessor
severe-error
260
views
1
answer
2
votes
2025-03-10 11:22:12 -0600
JasonGlazer
Errors running DOE prototypes through python EPlus
python
doe-prototype-buildings
slab-preprocessor
basement
energyplus
534
views
1
answer
no
votes
2025-02-23 08:46:55 -0600
RANJIT KAUR
Simulation failed to run, with exit code 1, please help , i have been getting this error.
energyplus
severe-error
159
views
no
answers
2
votes
2025-01-13 10:48:23 -0600
MatteoMerli
E+ Fatal error with exterior shading control via EMS: Convergence error in SolveForWindowTemperatures (NO AFN)
energyplus
ems
convergence
external-shading
shading-control
279
views
no
answers
no
votes
2025-01-09 17:40:33 -0600
yanwang
initial water content changed
hamt
energyplus
moisture
warmup
529
views
1
answer
1
vote
2024-12-19 06:42:41 -0600
JasonGlazer
Distance between two vertices < .01
geometry
surfaces
vertex
energyplus
warning
199
views
1
answer
2
votes
2024-11-18 04:09:48 -0600
Annie Marston
model runs in windows e+ but fails in Mac OS e+
command-line
mac-os
energyplus
energyplus-cli
ms-windows
193
views
1
answer
no
votes
2024-11-08 05:28:37 -0600
PmP
Thermal storage attached to a PTHP using heat exchanger problem
energyplus
pthp
thermal-storage
heat-exchanger
chilled-water-loop
240
views
1
answer
1
vote
2024-11-05 09:45:40 -0600
Neal Kruis
How does KIVA determine heat loss during design day periods?
energyplus
kiva
zone-sizing
design-day
ground-heat-transfer
173
views
no
answers
no
votes
2024-10-15 05:20:26 -0600
Denis Bourgeois
E+ : Accumulation Buffer Water Tank With No Fuel Heater Type
storage-tank
energyplus
water-heater-mixed
severe-error
89
views
no
answers
1
vote
2024-10-01 05:03:48 -0600
Tokarzewski
Avoid coldstart when RunPeriod starts on Saturday
energyplus
run-period
warmup
154
views
1
answer
no
votes
2024-09-06 13:40:36 -0600
Aaron Boranian
E+ detailed HVAC crash on warmup - high window temperatures
energyplus
detailed-hvac
high-surface-temperatures
severe-error
low-temperature-radiant
868
views
1
answer
1
vote
2024-09-06 03:01:58 -0600
Julien Marrec
OpenStudio model gives different results when running multiple times
openstudio
convergence
openstudio-application
272
views
no
answers
no
votes
2024-08-28 13:32:07 -0600
Aaron Boranian
Severe error : UpdateZoneSizing: Cooling supply air temperature (calculated) within 2C of zone temperature
severe-error
openstudio
openstudio-application
196
views
no
answers
no
votes
2024-08-26 08:21:13 -0600
Aaron Boranian
ManageSizing: For a zone sizing run, there must be at least 1 Sizing:Zone input object. SimulationControl Zone Sizing option ignored.
openstudio
zone-sizing
thermal-zone
warning
design-day
585
views
1
answer
no
votes
2024-08-21 10:35:08 -0600
Denis Bourgeois
Severe error, Missing required property 'schedule_name'.
electric-equipment
severe-error
openstudio
energyplus
openstudio-application
471
views
1
answer
no
votes
2024-08-04 16:00:21 -0600
Jamie Sullivan
How to set cooling setpoint below heating setpoint
energyplus
dual-thermostat
deadband
severe-error
344
views
1
answer
2
votes
2024-06-13 03:58:26 -0600
PmP
SetpointManager:ReturnTemperature:Chilled/HotWater never reads PlantLoop fluid glycol (E+ Bugfix)
energyplus
fluid-properties
bug-report
324
views
1
answer
no
votes
2024-06-06 13:53:24 -0600
shorowit
How to solve HVACTemplate:Zone:IdealLoadsAirSystem in eppy?
eppy
energyplus
severe-error
hvac-template
expand-objects
79
views
no
answers
no
votes
2024-06-02 07:04:48 -0600
Behnam
How to solve HVACTemplate Termination in eppy? [closed]
hvactemplate
termination
in
eppy
1
2
3
4
5
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