SISIFO is the result of an experience of more than 20 years simulating, measuring and testing PV systems. SISIFO was the internal tool for simulation of the Solar Energy Institute of the Universidad Politecnica de Madrid.

Thanks to the support of the European Commission through the projects PVCROPS (for grid-connected systems) and MASLOWATEN (for PV irrigation systems), SISIFO is now a webservice that will allow any user and company to carry out accurate simulations of PV systems.