[Equest-users] Updated Canadian CWEC Weather Files

Thu Jan 11 08:52:15 PST 2018

Go to this site:
http://climate.weather.gc.ca/prods_servs/engineering_e.html

Select “Canadian Weather Year for Energy Calculation (CWEC) to get to the site with the weather files:
ftp://ftp.tor.ec.gc.ca/Pub/Engineering_Climate_Dataset/Canadian_Weather_year_for_Energy_Calculation_CWEC/ENGLISH/

The release notes haven’t been updated to reflect the latest set of CWEC files. Select CWEC_v_2016.

In the zip file for each province is the latest set of CWEC files in pairs – the .epw file and the .wy3 file. The .wy3 file lists the year used for each month of data. For example, the Charlottetown, PEI file uses data from 1999 to 2013.

Christopher R. Jones, P.Eng.
Technical Specialist
Sustainability & Energy

[cid:image002.png at 01D38AD1.F446B970]
T +1 416-644-0252

2300 Yonge Street, Suite 2300
Toronto, ON M4P 1E4 Canada

wsp.com

Please consider the environment before printing...

From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Ng, Jason via Equest-users
Sent: Thursday, January 11, 2018 10:50 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Updated Canadian CWEC Weather Files

Hello all,

The government of Canada seems to have updated their engineering climate data sets to be used for energy simulations. The new data sets can be found here:

http://climate.weather.gc.ca/prods_servs/engineering_e.html

I quickly compared a CWEC file available from the doe2 website with the latest CWEC_V_2016 file from the website above for the same city and sure enough the number of heating degree days have been reduced and cooling degree days have gone up.

The issue I have with these files is I can’t seem to determine what years they are based on. The text files available on their ftp site are outdated (they maintain the CWEC files are based on data from 1960-1989), and the descriptions on the website are ambiguous.

Given the recent flurry of activity on weather files, I figured someone would be able to answer this pretty quickly!

Many thanks,

Vœux pour 2018 : Santé pour s’adapter aux changements + Bonheur avec les vôtres + Volonté de poser des gestes pour améliorer l’environnement + Idée miracle pour gérer facilement les courriels! Bonne année!
  [Bouthillette Parizeau] <http://www.bpa.ca/>

Jason Ng_ing. M.Sc.A.
jng at bpa.ca<mailto:jng at bpa.ca>   |  www.bpa.ca<http://www.bpa.ca>  |  t: 5143833747x2813

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