| eplusout.audit |
Echo of input, includes both IDD
echo and IDF echo – may have errors shown in context with IDD
or IDF statements |
< filename > .audit
(without echoing IDD unless errors in IDD). |
| eplusout.bnd |
This file contains details about
the nodes and branches. Useful in determining if all your
nodes are connected correctly. May be used to diagram the
network/ nodes of the HVAC system. |
< filename > .bnd |
| eplusout.dbg |
From Debug Output object – may
be useful to support to help track down problems |
< filename > .dbg |
| eplusout.dxf |
DXF (from
Output:Surfaces:Drawing,DXF;) |
< filename > .dxf |
| eplusout.edd |
Descriptive output from the EMS
portion |
< filename > .edd |
| eplusout.eio |
Contains several standard and
optional “report” elements. CSV format – may be read directly
into spreadsheet program for better formatting. |
< filename > .eio |
| eplusout.end |
A one line summary of success or
failure (useful for Interface programs) |
Not saved in the standard
EPL-Run script file. |
| eplusout.epmidf |
Output from EPMacro program –
contains the idf created from the input imf file |
< filename > .epmidf |
| eplusout.epmdet |
Output from EPMacro program –
the audit/details of the EPMacro processing |
< filename > .epmdet |
| eplusout.err |
Error file – contains very
important information from running the program. |
< filename > .err |
| eplusout.eso |
Standard Output File (contains
results from both Output:Variable and Output:Meter
objects). |
< filename > .eso |
| eplusout.mdd |
Meter names that are applicable
for reporting in the current simulation. |
< filename > .mdd |
| eplusout.mtd |
Meter details report – what
variables are on what meters and vice versa. This shows the
meters on which the Zone: Lights Electric Energy appear as
well as the contents of the Electricity:Facility meter. |
< filename > .mtd |
| eplusout.mtr |
Similar to .eso but only has
Output:Meter outputs. |
< filename > .mtr |
| eplusout.rdd |
Variable names that are
applicable for reporting in the current simulation. |
< filename > .rdd |
| eplusout.shd |
Surface shadowing combinations
report |
< filename > .shd |
| eplusout.sln |
Similar to DXF output but less
structured. Results of Output:Reports,Surface, Lines
object. |
< filename > .sln |
| eplusout.sql |
Mirrors the data in the .eso and
.mtr files but is in SQLite format (for viewing with SQLite
tools). |
< filename > .sql |
| eplusssz. < ext > |
Results from the Sizing:System
object. This file is “spreadsheet” ready. Different extensions
(csv, tab, and txt) denote different “separators” in the
file. |
< filename > Ssz. < ext
> |
| epluszsz. < ext > |
Results from the Sizing:Zone
object. This file is “spreadsheet” ready. Different extensions
(csv, tab, and txt) denote different “separators” in the
file. |
< filename > Zsz. < ext
> |
| eplusmap. < ext > |
Daylighting intensity “map”
output. Different extensions (csv, tab, and txt) denote
different “separators” in the file. |
< filename > Map. < ext
> |
| eplusout.dfs |
This file contains the hourly
pre-calculated daylight factors for exterior windows of a
daylight zone. |
< filename > DFS.csv |
| eplusscreen.csv |
Window screen transmittance
(direct and reflected) “map” output. |
< filename >
Screen.csv |
| eplustbl. < ext > |
Results of tabular and economics
requests. Different extensions (csv, tab, and txt) denote
different “separators” in the file. |
< filename > Table. <
ext > |
| eplusout.svg |
Results from the HVAC-Diagram
application. SVG is a Scalable Vector Graphics file for which
several viewers can be found. |
< filename > .svg |
| eplusout.sci |
File of cost information |
< filename > .sci |
| eplusout.delightin |
File produced during DElight
simulations – descriptive of EnergyPlus inputs into DElight
inputs. |
< filename >
delight.in |
| eplusout.delightout |
File produced during DElight
simulations – basic results from DElight simulation. |
< filename >
delight.out |
| eplusout.wrl |
VRML output from
(Output:Reports, Surfaces, VRML) |
< filename > .wrl |
Output File List[LINK]
Following are the native file names that are output from EnergyPlus; native – directly out of EnergyPlus. Usually you will not see these file names as batch files and interfaces will change them to be <file name>.<ext> or in some instances <file name><qualifier>.<ext>. Usually the extension is the important piece and is described in the following table.
In addition to the basic output files from EnergyPlus there are three standard “hybrid” output files. These are called “hybrid” because they are a result of post-processing after EnergyPlus has completed. Note that if there is an error during processing, these will not normally be “complete”.
Now, each file will be described in more detail with some examples of use.
Documentation content copyright © 1996-2026 The Board of Trustees of the University of Illinois and the Regents of the University of California through the Ernest Orlando Lawrence Berkeley National Laboratory. All rights reserved. EnergyPlus is a trademark of the US Department of Energy.
This documentation is made available under the EnergyPlus Open Source License v1.0.