Ratul Puri on Energy Storage, BESS and India’s Renewable Energy Future

 

India’s renewable energy journey is gradually moving beyond simply adding generation capacity. As solar and other renewable sources continue to expand, greater attention is now being given to energy storage, grid flexibility and dependable electricity delivery. Ratul Puri, Chairman of Hindustan Power, considers energy storage an important element of the next phase of India’s energy transition. With a rising share of renewable generation entering the power system, managing and balancing electricity is becoming increasingly complex. Transmission infrastructure, flexible generation, energy storage and effective grid management will become more significant in meeting electricity demand at different times of the day. This broader approach is reflected in Ratul Puri's views on India's Power Sector, which place greater emphasis on developing an electricity system capable of supporting the country's changing energy requirements.

For Ratul Puri, successful project execution is as important as capacity addition for the long-term development of India's renewable energy sector. Securing a renewable energy tender represents only one stage of the overall process. Projects also depend on appropriate land, transmission connectivity, financing, dependable offtake arrangements and detailed planning across their operating lifecycle. As a result, lifecycle economics are becoming increasingly relevant. Developers must account for battery degradation, augmentation requirements, efficiency losses, operating expenses and long-term revenue visibility while assessing projects. This broader perspective is consistent with Ratul Puri’s Energy Infrastructure approach, in which generation assets are evaluated together with the transmission, storage and supporting infrastructure needed to provide reliable electricity. As renewable capacity grows, such an approach can encourage the industry to look beyond headline tariffs and place greater attention on projects capable of generating sustainable returns while delivering dependable power over the long term.

Battery Energy Storage Systems, commonly known as BESS, are becoming an increasingly important part of India's renewable energy strategy. Solar power generation is largely concentrated during daylight hours, whereas electricity demand can continue to remain elevated in the evening. Battery storage can help address this timing mismatch by storing electricity when it is available and supplying it when required. However, Ratul Puri identifies a wider role for BESS within the power system. Batteries can contribute to frequency balancing, peak demand management and other grid-support services, apart from shifting renewable electricity between different periods. For India's energy storage market to achieve large-scale deployment, commercially sustainable revenue models will be essential. Storage projects may need to create value through several applications rather than depending exclusively on energy arbitrage.

Building Flexible Hybrid Renewable Energy Systems 

India’s future electricity system is expected to bring together multiple technologies instead of depending on renewable generation in isolation. Solar, wind, thermal power and battery storage can complement one another to create more flexible power systems. However, combining different technologies also increases operational complexity. Each generation source responds differently to variations in electricity demand and grid conditions. Energy Management Systems can assist in coordinating these assets by determining when power should be generated, stored or dispatched.

This marks a significant shift in the way power projects are planned and developed. The focus is increasingly moving toward integrated systems that can respond effectively to real-time electricity requirements rather than treating individual generation assets separately.

Battery technology will remain an important factor in India's expanding energy storage market. Lithium Iron Phosphate (LFP) batteries are currently a well-established choice due to their safety characteristics, performance and increasing commercial adoption. Meanwhile, emerging technologies such as sodium-ion and flow batteries are receiving attention for applications where cost, material availability or longer-duration storage requirements may influence technology choices. For Ratul Puri, retaining flexibility in technology selection is important as the storage sector continues to develop. India will also require stronger battery supply chains as domestic storage deployment expands. Diversifying battery technologies and strengthening manufacturing capabilities can contribute to the country's broader energy-security goals.

Digital Transformation of India’s Future Power Sector 

India’s energy transition is also becoming increasingly connected with digital technologies. Forecasting systems, predictive maintenance, real-time electricity pricing and automated dispatch can support better decision-making across renewable generation and battery storage assets. Digitalisation can therefore influence more than day-to-day operational efficiency. It can also affect asset utilisation, revenue optimisation and the overall financial performance of power projects. Combining renewable generation, BESS and digital intelligence could support a more responsive electricity system capable of adapting to changing demand patterns and market conditions.

The future development of India's power sector will depend on how effectively emerging technologies and supporting infrastructure are integrated. Investment in energy storage, grid modernisation, flexible generation and digitalisation can contribute to a more responsive electricity system. The perspective of Chairman Ratul Puri underlines the increasing relevance of energy storage, hybrid generation, transmission infrastructure and digital technologies in achieving this objective. For Hindustan Power and the broader energy industry, the opportunity is to connect clean power generation with the infrastructure and technologies required to deliver reliable electricity. As India's energy transition continues to accelerate, BESS, flexible generation and smarter power management are expected to play an increasingly important role in the country's clean-energy future.

About Ratul Puri

Ratul Puri is the Chairman of Hindustan Power, an integrated power generation company with a strong presence in renewable and transitional energy generation. Over the years, Chairman Ratul Puri has been involved in the development of large-scale energy infrastructure projects that support India’s growing power requirements and its transition toward cleaner energy sources.