Bldg-sim Digest, Vol 60, Issue 21

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Dear Eleni,

I am from india, Same problem with me, there is a bug in eQuest for
international climate zone. it will only for US.

Waseem Shah Khan's picture
Joined: 2012-07-20
Reputation: 0

We are now producing weather files in BIN format for pretty much anywhere outside the US at Not free but simple and quick.

Chuck Khuen

Chuck Khuen's picture
Joined: 2011-10-02
Reputation: 0

I'm confused by both the original post and the subsequent replies. What does this have to
do with weather data or with eQUEST?

Weather files do not list the ASHRAE climate region. If you got a weather file from the
EERE site, then that's an EnergyPlus EPW weather file. The ASHRAE Climate Zone shown on
an EPW STAT file is calculated by the EnergyPlus weather processor in converting the
source weather file into an EPW. It has no bearing on the weather file itself. If you
think that the Climate Zone is in error, that only means
the algorithm used by the EnergyPlus weather processor to calculate the ASHRAE Climate
Zone may be faulty for international locations.

Referring to this as a bug in eQUEST, or suggesting the problem might be the eQUEST *.BIN
weather file are further off the mark.

Joe Huang

Joe Huang's picture
Joined: 2011-09-30
Reputation: 406

When you open one of the weather files (found in EERE website) as
text, you can see the information on the ASHRAE climate zone. I don't
think there is a bug in eQUEST since the climate zone definition
doesn't depend on the software used for the simulation.

However, the description of the climate zone according to this doesn't
seem to agree with calculations based on different data. So I am
wondering, since I am using the EERE weather file for my eQUEST
simulation for LEED, if I have to define the climate zone as found in
the file or as calculated. I hope this makes sense and answers your


Eleni Soulti

Eleni Soulti's picture
Joined: 2012-06-27
Reputation: 0

You should read the notes at the bottom of the .stat files:

- **Note that the ASHRAE classification shown here is derived algorithmically from the source weather data.
- It may not be indicative of the long term climate for this location.

Use the information in ASHRAE Standard 169 (or 90.1) to define the climate zone -- from the long-term statistics, not a 'typical' weather file.

Dru.Crawley at's picture
Joined: 2011-10-02
Reputation: 0

Thank you for your email.

I imagine what you are suggesting is the best option.


Eleni Soulti

Eleni Soulti's picture
Joined: 2012-06-27
Reputation: 0