VRFB energy storage project financing options in China 2026

What is VRFB technology?

The project utilizes VRFB technology, which is known for its scalability, longevity, and safety. Given the unique demands of the VRFB system, Sineng Electric offered a tailored energy storage solution featuring its 1375kW central Power Conversion System (PCS).

What does VRFB stand for?

Xinjiang, China, February 28, 2025 -- Sineng Electric has successfully provided a customized energy storage solution for the 75MW/300MWh Vanadium Redox Flow Battery (VRFB) project in Xinjiang, China, which has been operating reliably since its commissioning.

Is a VRFB a big battery?

Mikhail Nikomarov, partner at Boston Consulting Group and CEO of the VRFB arm of vanadium producer Bushveld, Bushveld Energy for nearly a decade until July 2024, commented on the post. “700MWh is a large battery – regardless of technology. Unfortunately, VRFBs (or any flow battery technology) of this size are only happening in China,” he said.

How long did it take to build the VRFB project?

The biggest project of its type in the world today, the VRFB project’s planning, design and construction has taken six years. It was connected to the Dalian grid in late May, according to a report this week by the China Energy Storage Alliance (CNESA) industry group.

How much does VRFB cost?

The Hubei project’s cost for 500MWh of VRFB, along with a combined 1GW of solar PV and wind generation from which it will charge, was cited as around US$1.44 billion. The first phase of Rongke Power’s Dalian project meanwhile was given as RMB1.9 billion (US$298 million) in CNESA’s announcement, equivalent to RMB4.75/Wh (US$0.7/Wh).

Is Ronke power the world's largest VRFB system?

Ronke Power is also the company behind what was previously the world’s largest VRFB system, a 100MW/400MWh project in Dalian. The first phase of the project was commissioned in 2022, and is expected to eventually double in size, but no update has been issued since the first phase came online, and the Ushi project is now the larger of the two.