Background
Mangal Mandir Manav Seva Parivar located in Bagodara, Ahmedabad, Gujarat, is an organisation involved in serving helpless person, those suffering from physical maladies, orphans and those with no successors. Before installing solar, their monthly electricity consumption averaged around 2,000 kWh, resulting in bills as high as ₹18,000. Rising energy costs and the need for reliable, independent power motivated them to seek a renewable energy solution. The project was also aligned with their broader vision of environmental stewardship, reducing their carbon footprint, and presenting themselves as a role model in green practices. With a spacious rooftop of nearly 6,000 sq. ft. on metal shed, featuring a 6° tilt, the site was highly suitable for a solar panel installation.
Solar Energy System Implementation
The Solar plant implemented at Mangal Mandir Manav Seva Parivar was a 20.06 kW solar photovoltaic (PV) rooftop system using 34 nos of Sunora N-type TopCon 590 W panels coupled with a 20 kW Sunora grid tied inverter. The system was mounted on a fabricated HDGI structure designed specifically for a metal shed roof, ensuring durability and maintaining a minimum ground clearance of 500 mm. In addition to the panels and inverter, the system includes essential protection devices, an earthing system, and a monitoring platform for real-time performance tracking. The full specification sheet of the solar system as well as an aerial view of the system and surrounding property can be view in following table.
The application process began in May25 and the system was fully commissioned within two months. During implementation, special attention was given to optimize wiring and minimize electrical losses, despite ample rooftop space making layout straightforward. The Sunora team also secured approvals from the Chief Electrical Inspector and successfully integrated the system with the grid through net metering provided by the local DISCOM.
Initial system monitoring has shown excellent performance, with the inverter’s active power graph consistently peaking above 20 kW during high irradiance periods, confirming the system’s ability to deliver at its rated capacity even during this monsoon season.
Average daily generation is 63kWh for Aug25, and the system operates at a performance ratio of around 80-85%, indicating efficient operation under local conditions.
System Impacts
Energy Generation
The system was connected to home wifi router, so that system can be accessed to monitor the operation and electrical production. The 20 kW solar system can generate on average 120 kWh per day, translating into an annual output of nearly 43,200 kWh. This generation not only meets but exceeds their annual consumption needs, allowing excess energy to be exported back to the grid under the net metering policy. In effect, they have achieved complete energy independence, reducing dependency on external supply and ensuring long-term energy security.
Financial Impact
By eliminating monthly electricity bills of up to ₹18,000, the Trust now saves close to ₹32,000 per month, considering both bill elimination and energy credits from surplus generation. On an annual basis, this translates to savings of over ₹3.84 lakh. The expected payback period is just 2.5-3 years after which they will continue to enjoy free electricity for decades.
Environmental Benefits
The system is projected to offset nearly 12 metric tonnes of carbon dioxide emissions annually. This is equivalent to planting more than 12 mature trees. For a social institution like Mangal Mandir Manav Seva Parivar, this environmental contribution not only reduces costs but also enhances its role as a leader in sustainability and community service.
Operational Benefits
The installed Sunora inverter and panels have proven to be highly reliable, delivering stable performance since commissioning. The system’s monitoring interface enables easy tracking of generation and savings, ensuring transparency and confidence in long-term performance. Minimal maintenance is required, making it an ideal solution for an institution focused on service rather than technical upkeep.
Conclusion
The rooftop solar installation at Mangal Mandir Manav Seva Parivar has delivered strong financial, environmental, and operational benefits. With annual savings of more than ₹3.84 lakh, the system is on track for a rapid payback, while performance data confirms the ability of the inverter to reach its rated 20 kW capacity without overloading from DC. The Trust has achieved complete energy independence and significantly reduced its environmental footprint, contributing to cleaner air and a greener community. This project demonstrates that with the right design and implementation, solar energy can provide both economic and ecological value. Mangal Mandir Manav Seva Parivar now stands as an inspiring example of how institutions can lead the way in adopting renewable energy for long-term sustainability.
