VERENGO SOLAR is changing the way America thinks about solar! As the #1 residential solar integrator in California, Verengo offers comprehensive financial options and superior customer service.VERENGO SOLAR is changing the way America thinks about solar! As the #1 residential solar integrator in California, Verengo offers comprehensive financial options and superior customerservice,and consistently earns an A+ with the Better Business Bureau. We offer $0 down financing options, attractive outright purchase programs, and leasing programs with minimal out of pocket costs.