Offgrid Energy Labs, an Indian battery technology business, has begun commercial production of its exclusive ZincGel long-duration energy storage batteries outside India with the opening of its first overseas manufacturing plant in Hook, Hampshire, UK. The new facility is the company’s first international manufacturing base and has a 10 MWh pilot production line. Its goal is to prove the commercial application of its zinc-bromine battery technology and provide the groundwork for future large-scale production targeted at global energy storage markets.
ZincGel battery
The Hook factory is the first ZincGel battery manufacturing facility in the United Kingdom, according to the business. As demand for grid-scale energy storage continues to rise with the deployment of renewable energy, the facility is anticipated to show the commercial viability of the company’s long-duration storage platform in addition to pilot-scale production.
The increase coincides with rising global investment in energy storage systems to boost energy security, improve grid stability, and better the integration of renewable energy sources. The Central Electricity Authority of India projects that by 2031–2032, the nation would need more than 411 GWh of energy storage capacity, including more than 236 GWh from battery energy storage systems, highlighting the increasing demand for cutting-edge storage technology.
zinc-bromine battery chemistry
Based on zinc-bromine battery chemistry for stationary energy storage applications, Offgrid Energy Labs’ ZincGel technology was created through India’s deep-science and innovation environment.
According to the business, the batteries are non-flammable and do away with the possibility of thermal runaway, which is a major safety issue with traditional lithium-ion systems. With an operational lifespan of up to 20 years, the technology is intended to provide 100% daily depth of discharge throughout storage times ranging from six to sixteen hours.
The batteries are designed for use in microgrids, peak demand management, grid balancing, industrial backup power, and renewable energy integration.
Commenting on the launch, Rishi Srivastava, Co-founder of Offgrid Energy Labs, said the UK facility marks a significant milestone in taking Indian deep-technology innovation to international markets. He added that the manufacturing unit will strengthen the company’s ability to serve global customers while contributing to energy security, resilient supply chains and the transition to low-carbon power systems.
Tejas Kusurkar, Co-founder of Offgrid Energy Labs said the global energy transition will require multiple battery chemistries to meet diverse energy storage needs. He noted that zinc-bromine technology is well suited for stationary storage because of its long operating life, deep discharge capability, enhanced safety profile and the availability of abundant raw materials.





