Safe, Efficient, Modular
The Next Generation in Maritime Energy Storage

Greenwill Marine Energy Storage System

Greenwill is engineered exclusively for maritime applications where safety, flexibility, and performance are paramount. Leveraging advanced cylindrical cell technology and a modular design, our ESS solution provides a unique combination of high energy density and extensive lifecycle—ensuring lower total cost of ownership and reduced environmental impact.

  • True Cell-Level Safety: Individual safety features (steel casing, independent fusing, passive thermal runaway isolation) minimize fire risk and prevent cascading failures.
  • Modular and Space-Saving: A highly adaptable design allows you to maximize battery capacity in even the most confined spaces.
  • Extended Lifecycle: With proven cycle lives exceeding 10,000 cycles and consistent capacity retention, our ESS is designed for long-term reliability in harsh marine environments.
  • Eco-Friendly: Our LiFePO₄ chemistry and simplified recycling process reduce the environmental footprint.

Design Advantages:

Cell Approach - Enhanced Safety & Reliability

  • Passive Cell-Level Thermal Runaway Isolation:
    Our cylindrical cells, each with a robust steel casing and individual fuse, provide true isolation. In the event of an incident, only the affected cell is impacted—preventing propagation to neighboring cells.
  • Impact Resistance & Heat Dissipation:
    The design inherently prevents swelling and ensures even heat distribution, allowing for natural cooling without complex forced-air or liquid cooling systems.

Modular & Space-Efficient Design

  • Flexible Installation:
    Our compact, modular architecture eliminates the need for fixed-height racks, enabling customized configurations and maximizing the available battery room.
  • Lightweight Construction:
    Each module is engineered for easy installation—even in existing vessels—thanks to simple front-panel connections and minimal handling requirements.

Extended Lifecycle & Reduced Operational Costs

  • Proven Durability:
    Tested for over 10,000 cycles at 80% depth of discharge, GNW Greenwill promises extended system life with minimal maintenance.
  • Optimized Energy Efficiency:
    Natural cooling and reduced auxiliary infrastructure translate to energy savings and decreased operational expenses over the system’s lifecycle.

Sustainability & Eco-Friendliness

  • Green Technology:
    Utilizing the inherently safe and recyclable LiFePO₄ battery chemistry, our system avoids the complexities of multi-metal separations and large carbon footprints associated with other chemistries.
  • Reusability & Second-Life Applications:
    The robust design and long cycle life of our cylindrical cells also make GNW Greenwill an ideal candidate for second-life applications in home energy storage and beyond.

System Specifications

Battery Cell Chemistry LFP
Single Module Size / Increments 5.6 kWh / 51.2 VDC
Single Module Capacity 110.4 Ah / 5,652WH
Single String Range 22-96 kWh / 204-870 VDC
Module Dimensions 345(w) x 486(d) x 221(h) mm
Module Weight 51.6 kg
Operating Temperature -10°C~55°C (Charge), -20°C~68°C (Discharge)