Bharat Heavy Electricals Limited (BHEL) has invited bids for the operation and maintenance (O&M) of 1.1 MW of rooftop solar projects in Uttar Pradesh and Jharkhand. Of this, 630 kW of rooftop solar systems are located in Kanpur, and 75 kW capacity in Meerut, both in Uttar Pradesh, and 400 kW in Ranchi, Jharkhand.