There is an ASHRAE IWEC2 weather file for Jakarta (IDN_JAKARTA-SOEKARNO-HA_967490_IW2).
IWEC2 (International Weather for Energy Calculations) weather files were developed in a
4-year ASHRAE project utilizing actual weather reports from thousands of stations
throughout the world going back 25 years, and covers locations outside of the United
States and Canada. The entire set of 3,012 IWEC2 weather files is available on a DVD from
ASHRAE (see www.techstreet.com/ashrae/products/1823067)

Individual IWEC2 weather files are available online from White Box Technologies, Inc. in
various formats (BINM for DOE-2, EPW for EnergyPlus, etc.), as well as country sets or
even the entire IWEC2 collection. For a complete list of all IWEC2 stations, see
www.whiteboxtechnologies.com/IWEC2_locations.txt. For details on online access to IWEC2
weather files, see http://weather.whiteboxtechnologies.com .

Joe

Joe Huang
White Box Technologies, Inc.
346 Rheem Blvd., Suite 205A
Moraga CA 94556
yjhuang at whiteboxtechnologies.com
http://weather.whiteboxtechnologies.com for simulation-ready weather data
(o) (925)388-0265
(c) (510)928-2683
"building energy simulations at your fingertips"

A correction, followed by a rant about free weather data on the Web :-)

doe2.com is the web site for eQUEST and is completely unrelated to DOE. The weather files
on the doe2.com server are largely, if not entirely, obtained from the LBNL server used
for DOE-2 development from the 1980s-2000s. These weather files were accumulated at LBNL
while carrying out various research projects, mostly in the 1980s-1990s, in which I was
quite involved. In those days, we assumed that weather files would be unavailable and
budgeted for creating them from raw data. For example, the list of available stations for
Asia (see http://doe2.com/Download/Weather/NON-US/asia-sp.txt ) contains 5 Chinese
locations created for my sabbatical there, 5 Pakistani locations created for a World Bank
project, and 5 Southeast Asian locations created for an USAID ASEAN project (which is why
there is Jakarta), all done in the 1980s. Similarly, the 3 locations in Mexico were
created for an USAID project I had there in the early 1990s. For some regions such as
Europe, Australia, the Middle East, the files were contributed by Visiting Scholars, which
explains why the selections might seem querky and uneven.

I have no objections to doe2.com hosting these weather files, and actually think it's a
service since the LBNL server has been offline for at least 5 years. However, one of the
unintended consequences in having free weather files online is that it fosters the
mentality that weather files ought to be free and disposable.
However, as anyone who has ever tried can attest, creating a usable weather file from raw
data takes quite a bit of effort. All the free weather files hosted on various web sites
were all subsidized in some way, either by the government such as DOE for NREL to develop
the TMYs, an university for academic research or by a research institute as part of a
larger project, as I had described earlier. Outside of these circumstances, efforts to
develop weather files, even by nonprofit organizations such as ASHRAE, has to be recovered
in some fashion. The best analogy I have would be with books. I have yet to see someone
asking for a book on some technical topic and expecting it to be free.

Now I like free stuff as much as anyone, and don't begrudge the free TMYs, CWECs, etc.
floating around (in fact, I actually hosted many of these on my Web site). But if you
can't find what you want among the free stuff, or if you prefer something more up-to-date
(the majority of the non-US files on the doe2.com or the EnergyPlus weather web sites are
at least 15 years old), please don't rule out paying for it.

Joe

Joe Huang
White Box Technologies, Inc.
346 Rheem Blvd., Suite 205A
Moraga CA 94556
yjhuang at whiteboxtechnologies.com
http://weather.whiteboxtechnologies.com for simulation-ready weather data
(o) (925)388-0265
(c) (510)928-2683
"building energy simulations at your fingertips"