Singapore-based startup VFlowTech, a leader in modular vanadium redox flow battery (VRFB) technology, has successfully raised $20.5 million in a recent funding round. This marks a significant milestone in the global race toward sustainable long-duration energy storage. The round was led by a robust coalition of investors including Granite Asia, Antares Ventures, EDBI Pte Ltd, UntroD Capital, Pappas Capital, Wavemaker Partners, Entrepreneurs First, SEEDS Capital, Inci Holding, MOL PLUS, and PSA Ventures.

Co-founded by Avishek Kumar, VFlowTech is on a mission to make energy storage more affordable, sustainable, and scalable - an urgent necessity in a world accelerating toward decarbonization.

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What VFlowTech Does

VFlowTech develops and manufactures vanadium redox flow batteries - a type of energy storage system designed for long-duration, grid-scale applications. Unlike traditional lithium-ion batteries, vanadium flow batteries use non-flammable, reusable electrolytes and can charge and discharge simultaneously without degradation, making them ideal for solar and wind power storage.

Key Features of VFlowTech’s VRFB System:

• Long lifespan: 20-25 years with zero degradation.
  
• Scalability: Modular design allows for easy system expansion.
  
• Safety: No risk of thermal runaway or fire.
  
• Sustainability: Fully recyclable electrolyte and low environmental impact.
  
• High efficiency: Round-trip energy efficiency up to 85%.
  

These attributes make VFlowTech’s solution well-suited for industrial microgrids, renewable energy farms, and emerging markets where energy reliability is critical.

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Why VFlowTech’s Model is Disruptive

The rapid growth of renewable energy is creating a massive need for energy storage systems that are reliable, sustainable, and affordable. Yet, most of the current solutions - primarily lithium-ion - are not built for long-term, grid-scale applications. VFlowTech's technology offers a compelling alternative.

Instead of repurposing batteries made for cars (as with many lithium-ion solutions), VFlowTech has designed its product from the ground up for stationary energy storage, focusing on durability, safety, and lifecycle costs.

And here’s the founder-level insight that sets this apart:

The smartest founders in energy aren’t just electrifying - they’re decoupling performance from scarcity.
While others fight over limited lithium supplies, VFlowTech builds around vanadium - a more abundant, recyclable element that doesn’t degrade. They didn’t just choose a chemistry; they chose a long-game supply strategy.

This is a deeply strategic approach. By building with future constraints in mind - supply chain limitations, recycling demands, fire risks - VFlowTech doesn’t just offer a better battery. It offers a resilient infrastructure foundation for clean energy.

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The Market Opportunity: Long-Duration Storage is the Missing Link

The global energy storage market is on the verge of explosive growth:

• BloombergNEF projects global energy storage installations will reach 411 GW/1,194 GWh by 2030, a 15-fold increase from 2021.
  
• The market for long-duration energy storage (LDES) specifically is projected to grow from $1.2 billion in 2023 to over $50 billion by 2035, according to the LDES Council.
  
• Over 70% of new grid installations by 2040 will require storage capacity of at least 6 hours, a space where VRFBs outperform lithium-ion.
  

At the same time, governments are rolling out mandates and subsidies to support renewable adoption and energy storage - including the Inflation Reduction Act in the U.S. and solar-storage integration incentives in Southeast Asia, India, and the EU.

Yet, current storage adoption is lagging behind renewables. Grid operators are increasingly facing curtailment of solar/wind due to lack of flexible storage. VFlowTech’s modular, low-risk, long-duration batteries are perfectly timed to plug that gap.

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How the Funds Will Be Used

With this fresh $20.5 million injection, VFlowTech plans to scale aggressively on multiple fronts:

• Expand manufacturing capabilities in Asia and the Middle East, including a gigafactory-scale facility to meet surging demand for long-duration storage.
  
• Boost R&D and proprietary tech refinement for next-gen electrolyte formulation and intelligent battery management systems.
  
• Accelerate deployment in key geographies such as India, Africa, Australia, and remote island grids where diesel alternatives are urgently needed.
  
• Establish strategic partnerships with solar/wind developers, governments, and utilities to embed VRFBs into upcoming projects.
  
• Invest in supply chain localization and vertical integration for vanadium electrolyte recovery and reuse.
  

These moves will allow VFlowTech not just to manufacture batteries - but to create an end-to-end, circular storage ecosystem that spans design, deployment, and reclamation.

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VFlowTech’s Growing Global Impact

VFlowTech isn’t just building storage systems - it’s enabling energy equity. In regions where power outages are routine, or diesel is the default backup, VRFB systems can offer clean, continuous power for schools, hospitals, and microgrids.

Already, VFlowTech has:

• Deployed modular units in remote areas of Southeast Asia, providing 24/7 solar power for critical infrastructure.
  
• Piloted industrial storage projects that cut diesel reliance by 90%.
  
• Partnered with global utilities and independent power producers (IPPs) for grid balancing pilots.
  

By democratizing access to clean energy storage, VFlowTech plays a direct role in helping countries leapfrog to renewables.

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Why This Moment Matters

The world’s energy transition is no longer theoretical - it’s happening. But storage remains the weak link. Without long-duration storage, the dream of 100% renewable grids stays out of reach.

VFlowTech is changing that. Not by incrementally improving batteries, but by redefining what batteries are for. Their tech is not designed to compete with EVs or consumer gadgets. It’s designed to anchor the grid, support infrastructure, and stabilize power for communities.

And that’s where the real energy revolution begins - not in what we power, but in how we store the power that sustains us.

For founders in climate tech, this is a model worth noting:
Build for the edge case, and you’ll be ready for the mainstream. Build for resilience, and you’ll scale with regulation.

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What’s Next for VFlowTech

Looking ahead, VFlowTech is positioned to be a dominant force in the global LDES space. With market momentum, investor confidence, and technical maturity, it’s now competing on infrastructure scale, not just tech novelty.

Expect to see:

• Public-private partnerships with energy ministries
  
• VRFB integration into national grids
  
• A modular product line tailored to remote and underserved regions
  
• Deep software layering for performance forecasting and grid balancing
  

VFlowTech isn’t just a battery company. It’s an infrastructure enabler. And this $20.5 million round is the bridge to global energy resilience.