KOEL provides end to end alternate backup power solution that you deserve, no matter what size generator you need. We provide turnkey backup power generator installation of any size for your home, business or commercial purpose. KOEL’s technical experts and professionals make sure to provide the most economic and best performing solution to the customer while keeping all the necessary compliances and norms intact. Backup Power Generator for Residential and Commercial can be quite complicated as there are several parameters that you need to consider.