FMI opines the rooftop solar epc market was valued at USD 127.30 billion in 2025. Sales are expected to reach USD 133.03 billion in 2026 and USD 206.59 billion by 2036. 1 to 10 kW is poised to lead by Capacity with 38% share in 2026 and Commercial & industrial is estimated to command by End Use in 2026.