Tencent backs organic flow battery debut in Maldives microgrid
Quino Energy, a California-based startup developing water-based organic flow batteries, has secured a grant from Tencent's CarbonX programme to deploy a megawatt-hour-scale battery system on Himandhoo Island in the Maldives. The award marks the first commercial deployment of the company's quinone-based technology and brings together a supply chain spanning the US, India, China, and a low-lying island nation that ranks among the world's most exposed to climate risk.
The Himandhoo project sits within a larger microgrid that includes floating photovoltaic generation financed by the Asian Development Bank and terrestrial PV panels being installed under the Maldives government's POISED (Preparing Outer Islands for Sustainable Energy Development) initiative. Quino's battery will absorb excess solar generation and dispatch it on demand, allowing the island to sharply reduce its dependence on imported diesel, which currently underpins electricity supply on many of the Maldives' 185 inhabited outer islands.
A supply chain built for emerging markets
The project's industrial architecture is notable. Atri Energy Transition, which led Quino's Series A in October 2025, will manufacture the proprietary organic electrolyte in Pune, India, and provide five years of operations and maintenance support on the island. Flow battery hardware comes from Suqian Time Energy Storage, the Chinese parent company of Jena Flow Batteries, with which Quino signed a joint development agreement earlier this year. Installation and grid integration will be handled by Sinosoar, a specialist in island microgrids. The structure reflects a deliberate strategy to localise both manufacturing and servicing in the Global South rather than depend on Western-centric supply chains.
Quino CEO Eugene Beh said: "This represents the first commercial deployment of the organic flow battery technology, in addition to government-supported projects we previously announced. The collaboration showcases how Quino's technology will continue to enable cooperation between parties from across the world to rapidly advance the next generation of flow batteries."
Convergence of climate finance and long-duration storage
The CarbonX programme, now in its second phase, has shifted its focus specifically toward long-duration energy storage, carbon capture, and carbon removal, the trio of technologies that analysts broadly agree remain the largest unsolved infrastructure problems in the energy transition. Tencent's involvement signals that major technology conglomerates, not only specialist climate funds, are treating long-duration storage as a strategic capital category. The grant ceremony was held on 24 June, co-located with TED Countdown during London Climate Action Week, a pairing that underscores how climate-tech funding is converging with mainstream corporate sustainability agendas.
For Quino, the Maldives deployment arrives alongside a strengthening domestic funding stack: a $10 million grant from the California Energy Commission and $5 million from the US Department of Energy's Critical Facility Energy Resilience programme to support a 5 MWh flow battery deployment in Southern California. Together, these suggest that organic flow batteries are moving from laboratory curiosity to a fundable asset class across both public and private capital channels.
The broader strategic read-across matters for investors allocating across energy, sustainability, and digital infrastructure. Long-duration storage is the missing variable that determines how much intermittent renewable capacity a grid can actually absorb. As sovereign wealth funds and development banks accelerate renewable buildouts across Southeast Asia and the Pacific, demand for non-lithium storage is growing in parallel. Lithium-ion dominates today but carries well-documented fire-safety constraints and geographic supply-chain concentration in battery-grade lithium and cobalt. Organic flow chemistries, if they can demonstrate bankable performance at commercial scale, represent a potential route to storage infrastructure that is both locally manufacturable and materially safer for dense island or urban deployments.
The Himandhoo project is small by grid standards, but its convergence of Chinese tech-corporate philanthropy, Asian development finance, Indian manufacturing, and US deep-tech IP makes it an unusually transparent window into how the next tier of climate infrastructure gets funded and built, well away from the utility-scale projects that dominate headlines.