There have been a couple high impact defects repaired since the release of EnergyPlus 25.1.0. These have been patched onto the 25.1.0 branch, and we are re-releasing an alternative 25.1.0 version for affected users.

This version is fully compatible with 25.1.0, so if you haven't downloaded 25.1.0, this would be the suggested version to download. If you are using 25.1.0 original, and not experiencing any issues, there's no need to patch to this.

What's Changed

Defects Repaired 🪲

Fix #11050 - Schedule initialization error in HighTempRadiantSystem by @amirroth in #11053
Fix #11018 - Controller:MechanicalVentilation with DesignSpecification:OutdoorAir:SpaceList by @mjwitte
Fix #11089 - Relax codesigning entitlements for Python on mac by @jmarrec in #11090

Full Changelog: v25.1.0...v25.1.0-WithDSOASpaceListFixes

EnergyPlus 25.1.0

The U.S. Department of Energy (DOE) has released EnergyPlus version 25.1.0. There were many bug fixes and new features this release. The full changelog for this release cycle is listed below. For more information about EnergyPlus, please visit www.energyplus.net.

Key Changes 🎹

Two notable changes this release related to documentation and auxiliary tools:

Some of the documentation was converted from LaTeX->PDF into Markdown and hosted on ReadTheDocs. This includes:
- EnergyPlus Essentials
- EMS Application Guide
- Auxiliary Programs
- Notices and Acknowledgments
We are now including two Python tools with EnergyPlus: EPLaunch and IDFVersionUpdater. These tools have been completely rebuilt in Python, and the Python versions will ultimately be the full replacements. For now, the classic versions are packaged as well.
- On Windows, you can find shortcuts to the classic and Python versions right on the start menu folder
- On Mac, both tools have .app bundles right in the /Applications/EnergyPlus-25-1-0 installation directory
- On Linux, there are shortcuts in the install folder, and you can also find them in the desktop integration after install (press the start button and search for EnergyPlus). Note that on Linux, the classic IDFVersionUpdater was not packaged, because it was broken on Ubuntu 24.04.
- We look forward to hearing your experiences with both tools!

Supported Platforms

Windows 11 64-bit
Linux (Ubuntu) 22.04 and 24.04 64 bit
Mac OSX x86_64 and ARM architectures

What's Changed

New Features 🌟

Add Coil:*:DX:VariableSpeed as valid AirflowNetwork:Distribution:Component:Coil by @lymereJ in #10791
Enhance epJSON Editor by @JasonGlazer in #10870
Add Space Component Loads Report and Fix Zone Component Loads when Enclosures Differ from Zones by @mjwitte in #10730
Allow water heater desuperheater with Coil:Cooling:WaterToAirHeatPump:VariableSpeedEquationFit by @yzhou601 in #10945
Add Frost multiplier EMS actuators to DX heating coils by @yzhou601 in #10970
Add Coil:*:WaterToAirHeatPump:EquationFit as valid AirflowNetwork:Distribution:Component:Coil by @lymereJ in #10972
Add transition GUI to the E+ Auxiliary CLI by @Myoldmopar in #10967

Performance Enhancing Changes 🏁

Try with fvisibility=hidden on clang/GCC by @jmarrec in #10920
Extended HI followup: fix speed issue by @yujiex in #10733

Defects Repaired 🪲

Fix Foundation:Kiva Custom Block Material Input Processing by @mjwitte in #10768
Fix Convective Baseboard with Hard Sizes by @mjwitte in #10772
Fix Meter:Custom with mix of valid and invalid names by @amirroth in #10773
Address 24.2 EMPD Issue by @Myoldmopar in #10781
Vertical blind warning not reported from material get input function by @rraustad in #10743
Fix wshp array bounds error and sizing by @mjwitte in #10735
Fix typos in outputs/docs/src/etc. by @shorowit in #10760
Fix VRF FluidTCtrl negative outdoor unit fan power by @yujiex in #10649
Fix Issue #10286 window material shade mis-alignment for Output:Constructions by @jcyuan2020 in #10750
Fix GHE Bugs by @mitchute in #10495
Fix Std. 62.1 VRP calculations for Secondary Recirculation Systems by @EnergyArchmage in #10775
Fix DistrictHeating:Water in HVACTemplate:Plant:Boiler by @mjwitte in #10822
Fix chiller chilling when it is off by @mjwitte in #10793
Fix #10842 - When using pyenergyplus to run (via run_energyplus), PythonPlugin initializations errors lead to hang by @jmarrec in #10844
Add missing IDD type for chiller objects' condenser flow control by @lymereJ in #10883
Delete unused schedule by @rraustad in #10869
Set the correct identifier for variable speed cooling tower in GetTowerInput by @lymereJ in #10859
Corrects crash in DOAS fan sizing by @rraustad in #10816
Use LaTeX labels to reference figures in epw-csv-format-in-out.tex by @Accacio in #10849
Add plant worker function to get current equipment capacity by @rraustad in #10804
Fix Issue #10890 Discovered During FluidAPI Refactor by @amirroth in #10892
Add the NIST Life Cycle Cost Escalations for 2023 and 2024 by @JasonGlazer in #10881
Fix #10857 - Report System Summary:Thermostat Schedules depends on order of ZoneControl:Thermostat control types by @jmarrec in #10861
Fix #10895 - Expand IDF bug with HVACTemplate:System:DedicatedOutdoorAir for Heat Recovery Type 'Enthalpy' by @jmarrec in #10904
Add Space and Zone columns to Envelope Summary by @mjwitte in #10914
Fix #10718 - DXCoils StandardRatings OutputReportPredefined::addFootNoteSubTable produces invalid XML by @jmarrec in #10860
Correct reference entering air temperatures for the water to air heat pump dataset by @lymereJ in #10852
Update conduction-through-the-walls.tex by @Accacio in #10897
#10916 - Broken format strings in a few places like CurveManager by @jmarrec in #10917
Fix DOAS system sizing and add reporting by @EnergyArchmage in #10783
Fix flow rate issue for fanless unitary system by @mjwitte in #10825
Fix #10830 - incorrect curve unit type warning by @jmarrec in #10853
Change unit used for enthalpy in the Coil Sizing Details report by @lymereJ in #10909
Fix #10889 - Fix reporting of Cooling Towers in Equipment Summary - Cooling Towers and Fluid Coolers by @jmarrec in #10900
Fix #10899 - Output:Table:Monthly: SumOrAverageDuringHoursShown doesn't follow previous variable by @jmarrec in #10901
#10888 - Chiller minimum load ratio is set in the IDF however does not appear in eplustbl.htm for Chiller:Electric:EIR and Chiller:Electric:ReformulatedEIR by @jmarrec in #10915
Consolidate speed-dependent coil load ratio input parameters into a single parameter. by @tanaya-mankad in #10369
Fan:SystemModel with discrete speed flow fractions crashes when speeds >= 2 by @rraustad in #10846
Fix space assignment for zone outside boundary condition and add space option by @mjwitte in #10903
Fix #10817 - Avoid crash in FluidCooler/EvaporativeFluidCooler when Water flow rate autosized and no Sizing:Plant by @jmarrec in #10855
Correct VAV maximum air flow fraction during reheat for heating dominated use cases by @rraustad in #10763
Fix #10663 - Fan runtime fraction < 1 when flow rate scaling using DesignSpecification:ZoneHVAC:Sizing by @jmarrec in #10673
Fix #10933 - Unable to read Site:GroundDomain:Slab with Site:GroundTemperature:Undisturbed:FiniteDifference by @jmarrec in #10934
Add density option to ZoneInfiltration:DesignFlowRate and ZoneVentilation:DesignFlowRate by @mjwitte in #10929
Fix #10902 - CoolingTower:VariableSpeed:Merkel not reporting to Equipment Summary - Cooling Towers and Fluid Coolers by @jmarrec in #10930
Fix #10847 - EnergyPlus simulation crashes above a certain BaseDepth value for GroundHeatTransfer by @jmarrec in #10850
Fix #10926 - Disable fused floating point operations by @jmarrec in #10931
Fix excess fluid properties warnings leading to huge err file size by @rraustad in #10939
New outputs for infiltration and ventilation by @mjwitte in #10940
Fix documentation of heat pump heating rate description by @yujiex in #10957
Fix #10952 #10953 - Fixup tcl-tk issue on mac + add ubuntu arm64 runners by @jmarrec in #10954
Fix space sizing output (spsz) when there is no space HVAC equipment by @mjwitte in #10947
Add severe error when crankcase heater curve name is invalid by @yujiex in #10963...