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Gham Power Nepal's First Soluble Lead-Flow Battery, Turning Recycled Lead into Clean Energy Storage
- BFIS News
- 2026 Sep 08 13:03
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Live demonstration with University of Southampton researcher offers a first look at an emerging energy-storage technology built for Nepal's needs
KATHMANDU, NEPAL, September 7, 2026, Gham Power Nepal hosted an exclusive press meet on September 4 to unveil the country's first-ever Soluble Lead-Flow Battery (SLFB), an emerging energy-storage technology developed and demonstrated for Nepal. Prof. Richard Wills of the University of Southampton led a live, hands-on demonstration, walking journalists and energy-sector professionals through exactly how the battery works and how it is made.
At the heart of the SLFB is a simple idea: give new life to lead recovered from used batteries, repurposing it as the core material for storing electricity generated from solar and hydropower. As Nepal's renewable energy capacity grows, so does the need for reliable storage; a gap the SLFB is designed to help close, with potential applications in renewable-energy integration and longer-duration stationary storage.
During the demonstration, Prof. Wills showed how the battery charges and discharges, walking through how lead was sourced from end-of-life lead-acid batteries, giving attendees a rare, up-close look at flow-battery technology in action and a chance to question the researcher behind it. The SLFB is being advanced through a partnership between Gham Power, the University of Southampton, SOLead Energy, and Swanbarton, combining international research expertise with local knowledge to adapt the technology to Nepal's operating environment.
As Nepal's clean energy ambitions accelerate, the SLFB offers a homegrown, recycled-material approach to storage suited to the country's resources. The event brought together journalists, energy professionals, and clean-energy advocates for a firsthand look at the technology and a broader conversation on Nepal's energy-storage future.
About Gham Power
Founded in 2010, Gham Power Nepal Pvt. Ltd. is a solar energy company that has delivered over 4,000 projects, installing 18 MW of solar capacity, curbing 88,636+ tonnes of CO₂, displacing 33,073+ kilolitres of diesel, and impacting 60,000+ lives across Nepal. By integrating solar technology with smart data systems, the company powers industries, rural communities, and agricultural digitalization, guided by a mission to replace fossil fuels with reliable, accessible clean energy in line with the UN Sustainable Development Goals for Affordable and Clean Energy, Decent Work and Economic Growth, and Climate Action.
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