Cherie
I'm a member of a not-for-profit group that have been working on an interactive tool, SIREN, for modelling deployment of renewable energy on an existing or planned electricity grid (see
sourceforge.net/projects/sensiren/
). SIREN uses SAM models to estimate renewable energy generation. Perhaps of more interest to you is that we create weather files from NASA (MERRA-2) satellite data making it applicable worldwide, including Singapore.
If you're interested in creating weather files for input to SAM I have packaged up a program for Windows that creates the weather files - see sen_makeweatherfiles -
sourceforge.net/projects/sensiren/files/sen_makeweatherfiles.exe/download
. This is a self-extracting zip file. Download the file and run it (possibly as Administrator) to extract the program and related files. The executable file is makeweatherfiles.exe. There is a help file, makeweatherfiles.html, that describes its usage plus how to get the NASA data. If you're not running Windows the extracted folder also includes the source program, makeweatherfiles.py. It's written in Python and is licenced under an open source licence (see COPYING.txt).
If you do decide to use the weather program I'd be interested in any feedback. Please be aware, the weather files are for each year (a single year) rather than a typical meteorological year (TMY) file.
Kind regards
Angus King