Deeptech startup Sthyr has raised $1 million in seed funding. The round was led by Speciale Invest, with support from Antares Ventures.
Sthyr said it will use the money to continue research and development, test the product, and get it ready to grow and reach more users.
Sthyr was co-founded in 2024 by Gunjan Kapadia, Akhil Kongara, and Muhammed Hamdan. The company wants to solve the problem of wasted renewable energy by providing safe, affordable, and eco-friendly energy storage solutions.
Sthyr is working on building modular battery systems that store up to 200 kWh of energy, along with 10 kW zinc regeneration units that help make the system more efficient and sustainable.
Sthyr is based in Chennai and uses zinc-air battery technology. It stores extra energy, such as metallic zinc, which can be used later when there isn’t enough renewable energy available.
The company focuses on helping grid operators, renewable energy companies, and communities that still rely on diesel generators for power.
Sthyr’s technology is low-cost, safe, and fully developed in India. It has also led to multiple patents, showing how unique and innovative their work is.
Sthyr says its batteries use non-flammable, water-based liquids to make them safer. The design also separates the parts that store energy from the parts that provide power, which makes it easier to build and use the system in different sizes depending on the need.
“The ideal use cases for this technology include grid operators, asset management companies with large renewable energy farms, microgrids in remote areas, and potentially the defence sector and island communities relying on diesel power,” said Gunjan Kapadia.
Sthyr says its batteries should provide energy at a lower overall cost for long-term storage, making them a reasonable and affordable alternative to lithium-ion batteries.
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