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Deeptech startup Sthyr Energy raises $1 million in seed funding from Speciale Invest and Antares Ventures to advance energy storage technology.

Jun 25, 2025•21 days ago

Amount Raised

$1 Million

Round Type

seed

ChennaiRenewable EnergyEnergy

Investors

Antares VenturesSpeciale Invest

Description

Sthyr Energy has secured $1 million in seed funding led by Speciale Invest, with participation from Antares Ventures. The company is developing Zinc-Air battery systems aimed at long-duration and seasonal energy storage. These innovative systems utilize non-flammable, water-based electrolytes for increased safety. The funding will support R&D and help scale up the product for diverse applications.

Company Information

Company

Sthyr Energy

Location

Chennai, Tamil Nadu, India

About

Sthyr Energy is a deeptech startup developing energy storage systems, particularly focusing on mechanically rechargeable Zinc-Air battery systems designed for long-duration and seasonal storage. Founded by researchers from IIT Madras, the company aims to enhance safety with non-flammable, water-based electrolytes and enables modular deployments for various applications. Their technology is poised to compete with lithium-ion batteries by delivering a levelised cost of energy suitable for extensive energy storage needs. Sthyr's innovative solutions are especially relevant in the context of increasing renewable energy penetration in India.

Funding Insights

Based on industry data
VC-backed spending patterns
VC-backed companies spend 89% more on sales and 100% more on marketing than bootstrapped peers

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