[Bldg-sim] Creating a weather file

[Herrmann, Lesley]

Hi Khristiam,

Once you have collected data from wunderground, you can create a custom weather file to run in EnergyPlus using the WeatherConverter executable (Weather.exe), which comes with the EnergyPlus download. To do so, enter your weather data into an excel spreadsheet and create a definition file using a text editor.  The definition file defines the columns in your spreadsheet, the associated units, time steps, etc, and must end in ".def".  The Weather.exe interface reads the .def file and converts the excel sheet into an epw file.  The executable will also create a .csv, .ddy (design day), and .stat file for you.  You can create the weather file with any time step you'd like (1 min, 5 min, 1 hour...).

The EnergyPlus AuxilaryPrograms document provides more detail on this process and shows some examples. 

Are you running in eQuest of EnergyPlus?  Unfortunately I'm not familiar with the eQuest weather file format or how to convert E+ weather files to eQuest weather files, but maybe the csv output could help. 

Regards,
Lesley

__________________________________________
Lesley Herrmann
Commercial Buildings Engineer
Center for Electricity, Resources, and Building Systems Integration 
National Renewable Energy Laboratory (NREL)
1617 Cole Blvd., Golden CO 80401
303.275.4318

http://www.nrel.gov/buildings/



-----Original Message-----
From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Khristiam Alvarez
Sent: Wednesday, September 12, 2012 6:41 AM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Creating a weather file

Hi there

Have anyone experience in creating a new weather file from wunderground data?

This is my case: I use the Caracas file download from the EnergyPlus site converted to eQuest format but I live in other hotter city, Puerto Ordaz that has a wunderground station working since last april.

Thank you very much!

--
Khristiam Alvarez
Ingeniero Mecánico

Proyecto Hidroeléctrico Tocoma, Módulo 4 Proyectos Mecánicos Estudios e Ingeniería de Expansión CORPOELEC Km. 85 Vía Guri, Mun. Angostura, Edo. Bolivar, VENEZUELA

Tlfs: 0286.965.3579 / 0424.9701025 / 0416.5861057 Para llamar desde fuera de Venezuela:
+58.286.9653579 / +58.424.9701025 / +58.416.5861057

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