Numaligarh Refinery Limited (NRL) partnered with Firstgreen to explore the potential for widespread rooftop solar adoption across its residential township in Assam. The initiative aimed to reduce the refinery’s auxiliary energy consumption by harnessing clean, decentralized solar power across individual homes and shared community facilities. To support this vision, Firstgreen prepared a comprehensive Detailed Feasibility Report (DFR) outlining the technical, structural, and economic viability of township-wide solarization.
The study began with a thorough site assessment covering various building typologies, roof structures, shading conditions, and available electrical infrastructure. Structural evaluations ensured that each rooftop could safely accommodate solar installations without modification. Parallelly, electrical integration analysis mapped optimal inverter configurations, safety provisions, and grid-synchronization pathways for a smooth and reliable solar rollout.
A key outcome of the DFR was a clear implementation roadmap supported by CAPEX modeling, financial returns, and payback analysis. The findings demonstrated that rooftop solar could significantly reduce auxiliary energy demand while offering strong long-term savings for the township.
By providing a structured, data-driven feasibility assessment, Firstgreen established a credible pathway for NRL to adopt solar power at a community scale—making the township more sustainable, resilient, and energy-efficient.
