Bangladesh is scaling rooftop solar under its National Rooftop Solar Programme, with a 150 kWp installation at Biniyog Bhaban in Dhaka as a key example. The system generates 500 to 600 units of electricity daily, cuts 150 to 180 tonnes of CO2 annually, and recovers its Tk 5 million investment in 3.5 years. Revenue sharing gives BIDA 10% of the electricity and DESCO the rest plus future carbon credits. The government aims for 20% renewable electricity by 2030, 35,000 MW total capacity, and 25,000 circuit km of transmission lines. Fiscal incentives include zero tax on solar until 2035 and a 5% rebate on consumer solar bills. A National Energy Storage Roadmap is also in development. Rooftop solar is a practical tool for Bangladesh's energy transition, turning idle urban space into power stations while reducing emissions and generating revenue. The model shows how public utilities and institutions can collaborate without heavy upfront costs.
