Industrial-grade centrifugal fans manufacturer Reitz India has saved ₹6.7 million (~$76,279 annually by installing a 650 kW rooftop solar project at its Isnapur facility in Andhra Pradesh.

Reitz manufacturers centrifugal fans for the cement, oil and gas, power stations, food processing, pharmacy, glass and ceramic manufacturing sectors.

The manufacture of centrifugal fans is power-intensive. On average, the company’s monthly expenditure before installing the rooftop project was ₹1.17 million (~$13,319.6), amounting to approximately ₹14.04 million (~$159,836) per year.

With large shed spaces on its premises, Reitz India had the opportunity to use its unused rooftop areas to generate power from a rooftop solar installation.

Hyderabad-based rooftop installer Freyr Energy suggested Reitz India invest ₹26 million (~$295,992) in a rooftop system to offset the high grid tariffs faced by the commercial and industrial sector.

The project was commissioned in two phases. The first 500 kW was commissioned in May 2023, and the next 150 kW was commissioned in July 2025.

Utilizing 540 Wp Goldi Solar’ TOPCon modules and Saatvik Solar’s 540 Wp TOPCon modules, Freyr Energy set up the rooftop solar project.

The rooftop system was integrated with a web-based remote management system, enabling Reitz India to access project data remotely.

The rooftop installation generated annual savings of ₹6.7 million (~$76,274.8) and tax savings of ₹2 million (~$22,768.6), bringing the total savings to ₹9 million (~$102,459).

Through the rooftop solar project, Reitz India reduced its grid dependence by 45%.

The 650 kW rooftop system generates approximately 60,852 kWh per month and 2,550 kWh per day.

Recently, Freyr Energy helped biotech company Sanvira Biosciences save ₹2.8 million (~$31,776) annually by installing a 368 kW rooftop solar project at its Visakhapatnam facility in Andhra Pradesh.

To raise awareness about the benefits of businesses shifting to solar, Mercom brings together industry experts and the C&I sector at its C&I Clean Energy Meets. The next event will be held in Bhubaneswar on November 14, 2025.