No One Wants to Ship Water: The Energy Security Case for Flow Batteries

No one wants to ship water around the world. That one line says a lot about the next phase of energy storage.

In this episode of Climate Confident, I’m joined by Min Tang, Director of International Business at Rongke Power, one of the world’s leading vanadium flow battery companies. We get into why long-duration storage is moving from climate tech side-story to core grid infrastructure, and why that matters for decarbonisation, energy transition planning, net zero delivery, emissions reduction, and policy.

You’ll hear why vanadium flow batteries are not trying to replace lithium-ion batteries, and why that matters. Different problem. Different tool. Min explains how flow batteries can run for more than 20,000 cycles, retain capacity over decades, and support grid-scale black start, the kind of resilience that becomes rather important when grids are asked to absorb more renewables, power more electrification, and stay upright while demand from industry and AI data centres grows.

We dig into the economics too: why storage duration changes cost, how electrolyte leasing can cut upfront CapEx, and why local supply chains could become a major strategic advantage. You might be shocked to learn that localisation is baked into this technology because the electrolyte is mostly water. Glamorous? No. Important? Absolutely.

🎙️ Listen now to hear how Min Tang and Rongke Power are helping turn long-duration storage into practical climate action.

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