Resources for solar cell engineers. Griddler was founded in 2018 by Dr Johnson Wong, the inventor of the Griddler 2.5 solar cell finite element model (FEM) simulation program. Dr Wong originally developed this program at the Solar Energy Research Institute of Singapore (SERIS) in 2013. Griddler is dedicated to the further development and sales of Griddler 2.5 and all other related products.