Fundraising Fox

VFlowTech

Entrepreneur First '18

Singapore, SG · Founded 2018 · 9 known investors

vflowtech.com

VFlowTech develops PowerCube vanadium flow battery energy storage systems for commercial, industrial, grid and distributed generation applications in the renewable energy market. The company serves enterprise and utility customers across Asia, Europe, and the US.

Also known as VFT

CleantechClimate TechEnergyHardware

Founders & leadership

VFlowTech was founded in 2018 by Avishek Kumar and Arjun Bhattarai.

AKAvishek Kumar
Avishek KumarinCo-Founder and CEO2018–2025Avishek Kumar earned a PhD in electrical and computer engineering at the National University of Singapore, following an MSc in microelectronics from the Technical University of Munich. He was among the lead developers of high-efficiency half-cut PERC mono solar modules, a design that cut solar PV module costs by roughly 30%.
ABArjun Bhattarai
Arjun BhattaraiinCo-founder and CTOArjun Bhattarai holds a PhD from Nanyang Technological University in energy storage and materials science, with a research focus on vanadium redox flow batteries, and a master's in mechanical engineering from the University of Duisburg-Essen. His work has produced multiple academic publications and patents.

Investors · 9

Also in the syndicate · 7

angel investorsCarbon Zero Venture Capitalİnci HoldingMichael GryseelsPappas CapitalReal Tech HoldingsleadSing Fuels

Company profile

researched Aug 2026

VFlowTech (VFT) is a Singapore-headquartered energy storage company that designs and manufactures modular vanadium redox flow batteries (VRFB) for long-duration energy storage (LDES). The company was incubated in the CleanTech lab of Nanyang Technological University (NTU) and holds intellectual property on battery stacks, electrolyte chemistry and energy management systems derived from several years of university research.

Its flagship product line, the PowerCube, is offered in 50kW/250kWh and 100kW/500kWh configurations. The company states an expected system lifetime of more than 25 years, round-trip efficiency of 80% at up to 100% depth of discharge, operation at ambient temperatures up to 55°C without active cooling, and configurability for both DC and AC installations. VFlowTech has also developed its own energy management system (EMS), including a cloud-based platform intended to optimise charging profiles, integrate with solar PV, and enable smart-grid functions such as energy trading.

Applications span grid-scale, distributed and off-grid deployments. The company has worked on underground energy storage sites in Singapore, has trialled its technology with EV charging infrastructure, and positions VRFB technology against lithium-ion on safety (lower fire risk), recyclability, absence of degradation and the ability to decouple energy from power by sizing electrolyte tanks independently of the stack.

Compiled by commissioned research from 7 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
Jurong Island pilot scale-up targetMay 202540 MWh
Maximum operating temperature without active coolingMay 202555 degrees Celsius
Planned production line capacityFeb 2023200 MWh
PowerCube expected lifetimeMay 202525 years
Round-trip efficiencyMay 202580%
Team sizeJan 202560 people
Temasek Foundation grantMay 2019S$250K grant

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Timeline · 12

launches, deals, and filings
Jul 2025
Dr. Vidal Bharath appointed CEO

VFlowTech announced the appointment of Dr. Vidal J. Bharath as Chief Executive Officer via a 29 July 2025 press release; he is listed as CEO on the company's leadership page, with co-founder Dr. Avishek Kumar listed as Co-Founder & Advisor.

source ↗

May 2025
US$20.5M Series A+ round led by Granite Asia

Raised US$20.5 million from new and existing backers, led by Singapore VC firm Granite Asia with four new and six existing investors participating. Proceeds to scale manufacturing, expand into new geographies including Asia and the Middle East, enhance the AI-driven energy management platform and develop supply chains.

$20.5M source ↗

Jan 2024
EMA grant with Advario to scale Jurong Island pilot to 40MWh

VFlowTech and engineering company Advario were awarded grant funding by Singapore's Energy Market Authority to scale an existing pilot project from 1.5MWh to 40MWh on Jurong Island.

source ↗

Feb 2023
US$10M Series A

Raised an oversubscribed US$10 million Series A led by Real Tech Holdings with participation from SEEDS Capital, Wavemaker Partners, Sing Fuels, Michael Gryseels, İnci Holding, Pappas Capital and Carbon Zero Venture Capital, to set up a 200MWh production line and expand into Türkiye, the US, Japan, China and India.

$10M source ↗

Jan 2023
Partnership with İnci Holding and MOU with NTU and Newcastle

Partnership with İnci Holding for business development in Turkey, plus an MOU with NTU and Newcastle to train PhDs in power electronics.

source ↗

Aug 2022
S$900K order from Sunseap for Pulau Ubin Island

Received an order of S$900K from Sunseap to power Pulau Ubin Island; strategic sales to PTT Thailand and PLN Indonesia.

source ↗

Aug 2022
Joint venture with Banpu Innovation Venture

Set up a JV with Banpu Innovation Venture to build hybrid batteries; also opened a new office at Cleantech 3 and grew the team to 60 people across Singapore and India.

source ↗

Oct 2021
US$3M Pre-Series A financing

Secured $3 million in Pre-Series A financing led by Wavemaker Partners with participation from SEEDS Capital, Sing Fuels and angel investors; funds earmarked for expanding operations and scaling manufacturing of redox flow battery systems.

$3M source ↗

Aug 2021
Systems shipped to Japan and Australia; Vopak test at Jurong Island

Shipped systems to Japan and Australia and completed a successful test with Vopak at Jurong Island.

source ↗

Aug 2020
30kWh and 100kWh PowerCube launched

Launched 30kWh and 100kWh PowerCube systems and set up a first microgrid with a 100kWh PowerCube at the Cleantech One office.

source ↗

May 2019
Temasek Foundation grant and first angel equity investment

Received a S$250K grant from Temasek Foundation and first equity investment from angel investors.

source ↗

May 2018
Founded as NTU spin-off

VFlowTech founded as a spin-off from Nanyang Technological University, Singapore, with key IP on stack, chemistry and EMS leveraging seven years of university R&D.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

Research sources · 7

primary sources listed

7 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does VFlowTech do?
Singapore-based NTU spin-off building modular vanadium redox flow batteries for long-duration energy storage.
Who founded VFlowTech?
VFlowTech was founded by Avishek Kumar, Arjun Bhattarai in 2018.
Who are VFlowTech's investors?
VFlowTech's investors include Entrepreneur First, UntroD Capital.
Where is VFlowTech headquartered?
VFlowTech is headquartered in Singapore, SG.