Suri SBI Bank Solar 20KW On Grid 20KW On Grid Solar System We successfully installed at Suri SBI Bank Solar 20KW On Grid system.We use 60Nos of Polycrystalline panel, On Grid inverter, ACDB, DCDB, LA, Earthing, GI structure & other things. They save more then 20,000 rupees per month on electricity bill.After 2years of installation they give us only positive feedback.They needs only one year more to return their investment in from of saved electricity bill.