Solar91 Cleantech Limited, one of India’s fast-growing renewable energy companies, has taken a significant leap forward by signing a 50MW/100MWh Battery Energy Storage Purchase Agreement (BESPA) with NVVN (NTPC Vidyut Vyapar Nigam Ltd.). This milestone agreement was announced on the auspicious occasion of Ganesh Chaturthi, symbolizing not just a festive celebration but also a decisive step in India’s renewable energy transition.
Why This Agreement Matters
Battery Energy Storage Systems (BESS) are widely recognized as the missing link in India’s green energy puzzle. While solar and wind have added substantial capacity, their intermittent nature creates grid instability and peak-load challenges. A 50MW/100MWh storage project enables two hours of firm power at full capacity, helping balance demand during peak evening hours and improving round-the-clock energy reliability.
By partnering with NVVN, Solar91 aligns itself with one of India’s most credible government-backed power trading entities. This not only enhances project bankability but also sets the stage for replicable deployments across states under schemes such as PM-KUSUM.
Solar91’s Business Evolution
Founded in 2015, Solar91 has built a strong foundation in solar EPC and O&M projects, executing over 200 installations across 13+ states. Initially focused on rooftop and ground-mounted EPC projects, the company has successfully transitioned into the Independent Power Producer (IPP) space with 380+ MW of secured PPAs under the government’s KUSUM program.
Its current strategy goes beyond EPC — evolving into a Generation + Storage platform. By integrating BESS solutions into its distributed solar clusters, Solar91 aims to:
- Improve grid reliability in rural and semi-urban areas
- Unlock higher IRRs through bundled solar-plus-storage projects
- Offer long-term, annuity-based revenues backed by DISCOM contracts
The company’s long-term vision targets 1.47 GW+ IPP capacity by FY29, with a strong focus on scaling distributed solar and storage in high-growth states such as Rajasthan, Gujarat, Maharashtra, and Karnataka.
Looking Ahead
This BESPA signing is more than just an agreement; it reflects a structural shift in India’s renewable ecosystem. As storage costs decline and policies incentivize firm green energy, Solar91’s early move positions it as a first-mover in distributed solar + storage IPPs.
With its cluster-based O&M model, strong DISCOM relationships, and seasoned IIT-trained leadership team, Solar91 is well-placed to replicate this success across multiple regions. For investors and industry watchers, this deal signals the company’s transition from a project executor to a platform builder in India’s clean energy landscape.