You can download NSol! GT 1.0 from our software library for free. The program belongs to Education Tools. The actual developer of the software is FearTheSkunk. The most popular version of the program 1.0.
From the developer:
NSol!-GT is designed to allow solar engineers to quickly and accurately design and calculate the performance of grid-tied systems. NSol!-GT is based on algorithms in
NSol! PV system sizing software, but additional features have been added to allow modeling of grid-tied PV systems.
You may want to check out more software, such as GT Manager, GT-100 Librarian or GT command, which might be similar to NSol! GT.