On 23 February 2026, the International Solar Innovation Council (INSIC) convened an international webinar, “Enabling Solar Society: The Challenge of Energy Storage.” The event brought together leading experts from India and Finland to examine how advanced storage technologies can transform intermittent solar generation into dependable, dispatchable power — a prerequisite for the clean energy era.

Advancing Storage Technologies

The webinar featured six technical presentations, each highlighting a distinct solution:

• Lithium-ion & Sodium-ion Batteries: Lithium-ion remains dominant, while sodium-ion offers scalability through abundant raw materials.

• Vanadium Flow Batteries: Long cycle life and scalability make them ideal for grid-scale applications.

• Pumped Hydro Storage: India’s Manipur pilot integrates solar with micro-hydro, marking Asia’s first solar-pump hydro initiative.

• Supercapacitors: High efficiency and rapid response, particularly suited for frequency regulation.

• Liquid Air Energy Storage (LAES): A long-duration option with lifespans exceeding 30 years, under construction in the UK and under review for deployment in Rajasthan and Gujarat.

• Green Hydrogen: A carbon-free energy carrier for industry and transport, though currently costlier than conventional alternatives.

India’s Expanding Renewable Capacity

India’s rapid progress was a focal point, with 263 GW of installed renewable capacity (141 GW solar) already achieved. The nation is targeting 300 GW solar and 500 GW renewables by 2030. Experts emphasized that adding just four hours of storage could enable over 80% solar penetration on India’s grid, reinforcing storage as central to energy independence.

Engagement and Outcomes

The webinar attracted 167 participants, primarily from academia and research institutions, with strong engagement throughout. Feedback reflected:

• 4.43/5 average recommendation score

• 69% of content considered new

• 99% expressed interest in future sessions

Strategic Takeaways

• A diversified portfolio of storage technologies is essential.

• Domestic manufacturing of battery systems and converters is critical for sovereignty.

• Circular economy practices must address end-of-life battery waste.

• India’s solar innovations are globally relevant, simultaneously reducing emissions and creating employment.

Conclusion

The webinar reaffirmed that energy storage is not simply a technical challenge but a societal imperative. Through innovation, strategic policy, and manufacturing initiatives, India and its international partners are shaping a future where clean energy is both abundant and reliable. INSIC’s initiative highlights that collaboration and a portfolio approach to storage are key to realizing the promise of solar societies.