SPower Series VFB

The SPower Series VFB is engineered for safe, long-duration energy storage across commercial, industrial, and utility-scale applications. Its modular design, long cycle life, and scalable architecture make it a reliable solution for demanding energy storage projects.


Safe, Long-lasting

  • 240kWh per Unit
  • Highly Modularized
  • Factory-Integrated
  • Plug-and-Play Configuration
  • Transportable Design
  • Scalable to Gigawatt hours by Stacking Units
  • IEC certified
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Inherently Safe

Water-based electrolyte, no thermal runway

Long Cycle Life

Over 20,000 charge/discharge cycles with minimal degradation

Allowing 100% DOD

Without structural damage

Flexibility

Independant power and energy scalling with KW to MW applications

SPower 240 kWh Battery Specifications
Voltage
V
104V~ 166.4V
Current
A
577(MAX)
Unit energy discharge capacity
kW
240
Dimensions (W*D*H)
m
6.058m(L)×2.438m(W)×2.591m(H)
Weight
T
21
Ambient temp
°C
-20℃~50℃
Storage temp
°C
0℃~45℃ (long term storage)
Enclosure
IP54 (optional up to IP65)
Short circuit current
A
2500
Lifetime
cycles/years
+25,000/+25
Communications
Modbus/TCP/CANbus/Ethernet
Certifications
IEC 62932-2-1
IEC 62932-2-2
BMS
Embedded
Auxiliary Supply
380V/AC ,50Hz,Three phase Stop：0.2kW Operation：3.2kW-8.6kW

Key Features

The SPower Series VFB combines safety, durability, and modular scalability to meet the energy storage needs of commercial, industrial, and utility projects.

Safety

RKP's VFBs are non-flammable, have a low risk of thermal runaway, making them one of the safest energy storage options. This ensures safe operation in all environments, including urban areas, industrial sites, and residential neighborhoods.

Long Lifespan

RKP's VFB systems are designed for durability, offering a lifespan of over 25 years with minimal capacity degradation. This longevity ensures a lower total cost of ownership and consistent performance over time.

Zero Degradation

RKP's VFB systems feature zero capacity degradation over time, maintaining consistent performance throughout their lifespan. This ensures long-term reliability and reduces the need for frequent replacements, resulting in significant cost savings.

Scalability

RKP's VFB systems are highly flexible and can be easily scaled to meet the energy demands of any project. From small residential setups to large-scale utility projects, our solutions grow with your needs.

Environmental Impact

Committed to sustainability, RKP's VFB systems use vanadium, a recyclable and abundant element. The non-toxic and environmentally friendly nature of our batteries supports your green initiatives and reduces your carbon footprint.

Real-World Applications in New Zealand & Pacific

  • Large solar farms (Northland, Waikato, Canterbury) – shift daytime solar to evening peaks
  • Wind farm firming and grid stability projects
  • Weak-grid & island microgrids (Chatham Islands, Tokelau, Fiji, Cook Islands)
  • Dairy factory & freezing works peak-shaving
  • Utility-scale frequency regulation and black-start systems
  • Community and iwi-led renewable projects

Why Developers & Lines Companies Choose the SPower 240 kWh Battery

  • Zero fire risk → no expensive fire-suppression systems or insurance hikes
  • 25–30 year life → lowest Levelised Cost of Storage (LCOS) in NZ
  • 100% recyclable → helps meet council and government ESG requirements
  • Proven — over 3.5GWh already running globally by Rongke Power
  • Local stock and support from Pōkeno, Waikato

Get Your Free Proposal

Tell us your required MWh and location, we’ll deliver:
  • Full system layout & bill of materials
  • LCOE and payback calculation
  • Grid-connection & consent guidance
  • Finance/lease options