Rongke Power

What Rongke Power does

Rongke Power (大连融科储能集团股份有限公司) is a Dalian-based, privately-held manufacturer and integrator of all-vanadium redox flow battery (VRFB) energy storage systems, founded in 2008 as a joint venture between Dalian Heng Rong New Energy and the Chinese Academy of Sciences' Dalian Institute of Chemical Physics. The company has built a vertically integrated full-chain capability spanning high-performance vanadium materials, vanadium electrolyte production, stack manufacturing, and complete system integration across three production bases (innovation, materials, equipment), with stated annual capacities of 1GW for stacks/systems and 5.05GWh for electrolyte (under construction). Its product portfolio includes the VPower series (decoupled power/capacity modular systems for large-scale centralized stations), TPower series (all-in-one containerized 500kW/2,000kWh units), UPower series (small cabinet-style 10kW/40kWh units for commercial and industrial user-side applications), and the newly launched SPower240o integrated delivery system.

Rongke Power generates revenue primarily through hardware sales of complete vanadium flow battery systems to utility-scale and commercial energy storage customers, complemented by direct sales of vanadium electrolyte (both to its own systems and to other VRFB integrators globally), and a newer electrolyte rental/subscription model that reduces customer upfront investment by more than 50%. Its three target segments are the power generation side (wind/solar integration and curtailment mitigation), the power grid side (peak shaving, frequency regulation, black start), and the user side (industrial microgrids, demand management, and distributed generation plus storage). Customers include major Chinese state-owned power enterprises — Huadian, Datang, Guodian Longyuan, State Grid, Conch Cement — with marquee projects including the 100MW/400MWh Dalian Flow Battery National Demonstration Power Station, the 200MW/1,000MWh Xinjiang Jimsar project, the Hami Shichengzi 100MW/400MWh station, and the Ulanqab 100MW/400MWh station. Sales is led through direct enterprise B2B contracts, government tenders, and partnerships with state-owned enterprises and energy companies. The company claims over 60% of global vanadium battery installations and over 80% of global vanadium electrolyte market share, with cumulative installed and under-construction capacity near 3.8 GWh, and reports 2024 production value exceeding RMB 10 billion. It has raised Series A through Series C funding between 2022 and 2024 (including a $145M USD round led by Legend Capital in April 2023), and initiated an A-share IPO counseling process with Guotou Junan Securities in October 2022, which was ongoing as of mid-2025.

Name

Rongke Power

Legal name

大连融科储能集团股份有限公司

Website

https://rongkepower.com

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

251–500 employees

Short description

Rongke Power is a Dalian-based, privately-held Chinese manufacturer of all-vanadium redox flow battery energy storage systems, serving utility-scale, grid, and industrial customers with vertically integrated VRFB hardware, electrolyte, and project delivery services.

Ownership category

akta.pro rank

Product category

Vanadium Flow Battery Energy Storage Systems

NAICS

Battery Manufacturing (33591)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Electrochemical LDES (Flow Batteries & Other Long-Duration Batteries) (EUAFADAA)

akta.pro secondary industries

Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB), Battery Recycling & Materials Recovery (Li-ion, LFP, Flow, Lead-Acid) (EUAMALAE), Testing, Grading & State-of-Health (SoH) Diagnostics (EOL Assessment, Certification) (EUAFACAH)

Keywords

• Vanadium flow batteries
• Energy storage systems
• Vanadium electrolyte
• Grid-scale battery storage
• Long-duration energy storage

Headquarters

HQ city

Dalian Shi

HQ country

China

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Technology or R&D, Personnel, Infrastructure, Operations, Marketing or Sales

Revenue model

1. Vanadium Flow Battery Systems: Sale of complete vanadium flow battery energy storage systems including TPower, VPower, and UPower product series for utility-scale and commercial energy storage applications.
2. Vanadium Electrolyte: Production and sale of high-performance vanadium electrolyte as energy storage medium, serving as both direct product and consumable for battery systems. Also offers electrolyte rental model.
3. Electrolyte Rental Model: Innovative business model where customers rent electrolyte instead of purchasing, reducing initial investment cost by over 50%. Applied in projects like the 6MW/36MWh project at Congyang Conch Cement.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

Rongke Power designs, manufactures, and sells all-vanadium redox flow battery (VRFB) energy storage systems, vanadium electrolyte, and high-performance vanadium materials. The company provides complete turnkey energy storage solutions for power generation side, grid side, and user-side applications, with integrated products ranging from containerized utility-scale systems to compact commercial/industrial cabinets.

Product overview

Rongke Power (大连融科储能集团股份有限公司) offers a portfolio of vanadium flow battery energy storage products and solutions, specializing in all-vanadium redox flow battery (VRFB) technology. The product lineup includes the VPower series (standard unit with power/capacity decoupling design for large-scale applications), TPower series (all-in-one containerized solution for rapid deployment), and UPower series (small cabinet-style design for commercial/industrial user-side applications). The company also provides high-performance vanadium materials, vanadium electrolyte (energy storage medium with indefinite recyclability), and complete vanadium flow battery systems. The VPower and TPower series form the core large-scale storage offerings, while UPower addresses smaller commercial deployments. Additionally, the SPower240o represents a next-generation highly integrated product. All products leverage the company's core strength in full-vanadium flow battery technology with advantages including intrinsic safety, ultra-long cycle life (25+ years, 16,000+ charge/discharge cycles), and environmental friendliness with recyclable electrolyte.

Differentiator

Problem solved

Functional benefit

Brands

• VPower Series: Power/capacity decoupled design product with 500kW standard modules, customizable capacity. Suitable for large-scale centralized ESS station construction with立体式 installation saving land.
• TPower Series
• UPower Series

Products and services

• VPower Series Standard battery module rated at 500kW with 2,000kWh capacity using a power/capacity decoupled design. Features 20ft container x 2 + external storage tanks x 4 + PCS configuration, suitable for large-scale centralized ESS stations with 4+ hour storage duration.
• TPower Series All-in-one prefabricated container design integrating power units (stacks), capacity units (tanks, electrolyte, piping), and battery control (BMS). Rated at 500kW/2,000kWh with plug-and-play capability. Container units can be arranged tightly without safety gaps, reducing footprint.
• UPower Series Small cabinet-style design with minimalist concept to break through complex thermal management and piping systems. Standard module rated at 10kW/40kWh with 12-24 modules flexibly arranged. High reliability, high integration, small footprint suitable for indoor commercial and industrial user-side applications.
• SPower240o Storage System High-integration, conveniently deployable all-new vanadium flow battery product featuring fundamental transformation from split design to integrated delivery. Supports plug-and-play with liquid transport, reducing transportation costs and project cycles, with high safety, high reliability, and long life characteristics.
• High-Performance Vanadium Materials Products include vanadium oxides, vanadates, and vanadium energy storage media. Targets high-end application markets in aviation, energy, and chemical industries, serving new energy, energy conservation, environmental protection, and new materials sectors.
• Vanadium Electrolyte Vanadium electrolyte serves as the energy storage and conversion medium, functioning as the key element for battery charge/discharge processes. Features vanadium ion concentration 20% higher than industry average, operating temperature range of -35C to 40C, and can be recycled indefinitely with over 50% residual value at end of life.
• Electrolyte Rental Service Subscription-based rental model where customers rent vanadium electrolyte instead of purchasing it outright, reducing initial investment cost by over 50%. Applied in projects like the 6MW/36MWh project at Congyang Conch Cement with Conch Ronghua as channel partner.

Quantifiable outcome

• 3.8 GWh installed capacity including projects under construction
• +3 more outcomes

Named customers10 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered major and core.

• Conch Ronghua (海螺融华)majorChannel Partner/ Reseller/ Distributor · 1 April 2023Joint electrolyte rental model business for industrial energy storage. First application at Congyang Conch Cement 6MW/36MWh project. Electrolyte rental reduces customer initial investment by over 50%.
• National Key R&D Program Consortium (10 institutions)coreStrategic or Co-development Partner · 20 March 2023Rongke leads a national key R&D program for next-generation 100MW-class vanadium flow battery technology. Consortium includes Dalian Institute of Chemical Physics, Dalian Rongke Power Group, Chinese Academy of Sciences Institute of Metal Research, Southern University of Science and Technology, State Grid Liaoning Electric Power, Tsinghua University, Nanjing Nari Jibao, Suzhou Kerun New Materials, and Dalian Hengliu Energy Storage Power Station.
• Chinese Academy of Sciences Dalian Institute of Chemical Physics (中科院大连化物所)coreStrategic or Co-development Partner · 1 January 2023Long-term strategic partnership for R&D of vanadium flow battery technology. The institute focuses on electrochemical energy storage research, while Rongke handles electrolyte preparation and front-end core materials. Jointly developed the first 10kW vanadium flow battery system in China in 2005.
• Pangang Vanadium Titanium (攀钢钒钛股份)majorStrategic or Co-development Partner · 1 January 2023Strategic cooperation with Panzhihua city government and Pangang for vanadium resource security and supply chain collaboration. Pangang is the world's largest vanadium product production base.

Scale indicators12 records

Recent moves11 records

Expansion highlights6 records

Emerging players

• Largo Resources: Canadian vanadium producer expanding into vanadium redox flow battery deployment via Largo Clean Energy. Comparable as integrated vanadium-to-flow-battery player, though smaller scale than Rongke.
• VoltStorage: German vanadium flow battery startup focused on commercial and industrial storage. Comparable as European VRFB peer with overlapping C&I segment targeting, though at smaller scale.

Direct peers

• VRB Energy: Canadian-Chinese developer of all-vanadium redox flow battery systems with utility-scale project deployments. Directly comparable as a pure-play VRFB competitor pursuing similar large-scale energy storage customers globally.
• Invinity Energy Systems: UK-listed vanadium flow battery manufacturer targeting commercial and utility-scale energy storage. Directly comparable in product technology (VRFB), target market (utility and C&I storage), and business model (project sales + service).
• CellCube (Enerox GmbH): Austrian vanadium flow battery manufacturer (formerly Gildemeister energy solutions). Directly comparable as European VRFB specialist targeting commercial and utility-scale storage deployments.
• Pu Neng Energy: Chinese vanadium flow battery company focused on utility-scale storage projects. Comparable as a domestic Chinese VRFB competitor pursuing similar state-owned utility customers and large-scale grid projects.

Broad incumbents

• Sungrow: Chinese power conversion and energy storage system integrator dominant in lithium-based BESS. Comparable as major Chinese ESS competitor pursuing utility-scale storage customers, though focused on lithium chemistry.
• Sumitomo Electric Industries: Japanese conglomerate with a long-running vanadium redox flow battery business and several demonstration projects. Comparable as a major established player in VRFB with broader industrial portfolio backing R&D.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries5 records

Funding overview

Funding rounds2 records

Investors5 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments1 record

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Rongke Power