New Delhi: In a significant move to accelerate India’s clean energy transition, ONGC Green Limited (OGL), a wholly owned subsidiary of Oil and Natural Gas Corporation, has signed a Memorandum of Understanding (MoU) with NHPC Limited to jointly explore and develop pumped hydro storage projects and other renewable energy opportunities across the country.
The agreement was signed on 24 June 2026, marking the beginning of a long-term strategic partnership focused on strengthening India’s low-carbon and sustainable energy infrastructure.
Focus on Pumped Hydro Storage and Renewable Energy Expansion
The collaboration will primarily focus on developing pumped hydro storage (PHS) projects, which are widely regarded as one of the most efficient large-scale energy storage solutions.
Often referred to as the “water battery” of the power sector, pumped hydro storage works by:
- Storing excess electricity during low demand periods
- Releasing stored energy during peak demand
- Supporting grid stability and reliability
This technology is expected to play a crucial role as India increases its dependence on renewable energy sources such as solar and wind power.
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Strengthening India’s Energy Security and Grid Stability
As renewable energy capacity grows in India, the need for long-duration energy storage solutions is becoming increasingly important. The partnership between ONGC Green Limited and NHPC aims to address this challenge by improving:
- Power system stability
- Renewable energy integration into the national grid
- Round-the-clock clean energy availability
The collaboration combines NHPC’s strong expertise in hydropower development with ONGC Green’s project execution capabilities and expanding renewable energy portfolio.
Alignment with India’s Net Zero and Clean Energy Goals
The MoU also supports ONGC Green Limited’s long-term renewable energy roadmap, which includes:
- Achieving 10 GW renewable energy capacity by 2030
- Supporting ONGC’s Net Zero targets for Scope 1 and Scope 2 emissions by 2038
By promoting pumped hydro storage and renewable energy projects, the initiative is expected to contribute significantly to India’s broader climate and sustainability commitments.
Industry Perspective on Pumped Hydro Storage
Energy experts consider pumped hydro storage a key pillar in India’s future energy mix. As renewable penetration increases, technologies like PHS will be essential for:
- Managing supply-demand fluctuations
- Ensuring reliable electricity supply
- Supporting large-scale clean energy adoption
The ONGC Green–NHPC partnership is seen as a strategic step toward building a more resilient and sustainable power ecosystem in India.
The collaboration between ONGC Green Limited and NHPC Limited represents a major advancement in India’s renewable energy journey. By focusing on pumped hydro storage and clean energy development, the partnership aims to strengthen grid stability and support the country’s long-term sustainability goals.
About ONGC Green Limited and NHPC
ONGC Green Limited is a wholly owned subsidiary of ONGC, focused on expanding the company’s renewable energy portfolio and supporting India’s transition toward clean and low-carbon energy systems.
NHPC Limited is one of India’s leading hydropower companies, playing a key role in the development of hydroelectric projects and now actively expanding into renewable energy and storage solutions to support India’s energy security goals.
