Re: [EnergyPlus_Support] Modifying Weather File

[Linda Lawrie <linda@xxxxxxxxxxxxxx>]

I believe we recommend how to do that in the Auxiliary
Programs document.

The easiest way is:
1) run the weather converter on the original file
2) convert the file to "EnergyPlus CSV"
3) open the EnergyPlus CSV file in your favorite spreadsheet
program.
4) make the mods, saving it as CSV from the spreadsheet program.
5) run the weather converter again, this time selecting the CSV and make
sure the File type is "EnergyPlus CSV"
6) convert it to EPW.

if your regional settings aren't like US, you could run into a couple of
problems, such as the spreadsheet program changing the DataPeriods line
from 1/1, 12/31 to 01-Jan -- you'd need to hand edit that before step
5

Be aware that specific year data is not usually deemed appropriate for
Energy Analysis.
See this document for more details:
Information on selecting weather data is described in this paper: 
Drury B. Crawley. 1998. "Which Weather Data Should You Use for
Energy Simulations of Commercial Buildings?" in ASHRAE Transactions,
pp. 498-515, Vol. 104, Pt. 2. Atlanta: ASHRAE. (PDF 197 KB) 


PDF:

http://energyplus.gov/pdfs/bibliography/whichweatherdatashouldyouuseforenergysimulations.pdf



At 03:00 PM 11/22/2010, rinad_p wrote:
> Hello.
> I have been using the EnergyPlus weather file for Hong Kong, but I have
> weather data specific to my site that has been collected over the course
> of the year 2008.  Is it possible to modify the weather file to
> include the site-specific data?
>
> Rina

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