File extension EPW
| File type | EnergyPlus Weather Data Format |
| Developer | U.S. Department of Energy |
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What is a EPW file?
EPW file format is used by engineers, architects, and scientists for modeling and simulating energy or other resource usage. EPW files store weather data that is utilized during the simulation process. Such simulations are conducted using EnergyPlus software.
EnergyPlus was developed by U.S. Department of Energy. Weather data is available in EPW files for more than 2100 locations around the world. EPW files and EnergyPlus software can be downloaded from https://energyplus.net website.
Program(s) that can open the .EPW file
Windows
How to open EPW files
If you cannot open the EPW file on your computer - there may be several reasons. The first and most important reason (the most common) is the lack of a suitable software that supports EPW among those that are installed on your device.
A very simple way to solve this problem is to find and download the appropriate application. The first part of the task has already been done – the software supporting the EPW file can be found in the table. Now just download and install the appropriate application.
Possible problems with the EPW format files
The inability to open and operate the EPW file does not necessarily mean that you do not have an appropriate software installed on your computer. There may be other problems that also block our ability to operate the EnergyPlus Weather Data Format file. Below is a list of possible problems.
- Corruption of a EPW file which is being opened
- Incorrect links to the EPW file in registry entries.
- Accidental deletion of the description of the EPW from the Windows registry
- Incomplete installation of an application that supports the EPW format
- The EPW file which is being opened is infected with an undesirable malware.
- The computer does not have enough hardware resources to cope with the opening of the EPW file.
- Drivers of equipment used by the computer to open a EPW file are out of date.
If you are sure that all of these reasons do not exist in your case (or have already been eliminated), the EPW file should operate with your programs without any problem. If the problem with the EPW file has not been solved, it may be due to the fact that in this case there is also another rare problem with the EPW file. In this case, the only you can do is to ask for assistance of a professional staff.
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How to associate the file with an installed software?
If you want to associate a file with a new program (e.g. my-file.EPW) you have two ways to do it. The first and the easiest one is to right-click on the selected EPW file. From the drop-down menu select "Choose default program", then click "Browse" and find the desired program. The whole operation must be confirmed by clicking OK. The second and more difficult to do is associate the EPW file extension to the corresponding software in the Windows Registry.
Is there one way to open unknown files?
Many files contain only simple text data. It is possible that while opening unknown files (e.g. EPW) with a simple text editor like Windows Notepad will allow us to see some of the data encoded in the file. This method allows you to preview the contents of many files, but probably not in such a structure as a program dedicated to support them.