Freen-BSA-XL All-in-one ESS

The Freen-BSA-XL is a complete outdoor sodium-ion energy storage system engineered for industrial sites that need real power alongside real capacity. Battery, power conversion, energy management, liquid cooling and fire suppression all live inside one weatherproof enclosure, so what arrives on site is a finished system rather than a set of components.

Built on advanced NFPP sodium-ion chemistry, it delivers the thermal stability and long service life of the Na-ion platform without lithium, cobalt or nickel. Unlike a modular battery bank, the BSA-XL needs only a foundation, a cable and an earth connection: no technical room, no forced ventilation, no separate inverter to specify.

Key Benefits

Power That Makes Peak Shaving Work

At 0.8P the XL delivers close to 160 kW from 200 kWh, emptying in roughly an hour and a quarter. That ratio is what turns a battery from a backup device into a working tool for demand charge reduction and grid balancing.

Overload Headroom for Industrial Loads

1.5× rated power for 10 seconds absorbs motor and compressor inrush without oversizing the whole system. Continuous overload capability is 1.1×.

Reactive Power Compensation Included

Power factor is adjustable across the full −1 to +1 range, so the cabinet can correct the site’s reactive load as well as shift energy. Voltage distortion stays below 3 %.

Extended Service Life

Rated for more than 10,000 full cycles at 25 ± 2 °C and 0.5P, measured to 70 % end-of-life capacity. Roughly double the cycle life of a comparable lithium iron phosphate cabinet, and the number that decides cost of ownership over twenty years.

Built for the Outdoors, Including the Coast

IP54 protection and C4 anti-corrosion class, operating from −25 °C to +55 °C and up to 3,000 m altitude. Ports, coastal sites and exposed industrial yards need no shelter and no climate control.

High System Efficiency

Round-trip efficiency above 97 %, with intelligent liquid cooling holding cell temperature stable under sustained high-power cycling.

Scalable Toward a Megawatt-Hour

A single unit provides 199.68 kWh. Up to five cabinets operate in parallel, giving 998 kWh under one energy management system.

Technical Highlights

• Nominal Energy: 199.68 kWh
• Nominal Voltage: 1,248 V
• DC Operating Range: 832 – 1,435.2 V
• Configuration: 1P416S, eight 1P52S packs of 24.96 kWh
• Max Apparent Power: 176 kVA
• Overload: 1.1× continuous, 1.5× for 10 s
• Max Continuous Current: 128 A
• Max Charge / Discharge Current: 230 A
• Charge / Discharge Rate: 0.8P
• Grid Connection: 400 V (−10 % to +15 %), 3P4W / 3P3W, 50 / 60 Hz
• Power Factor: −1 to +1
• Cooling: Intelligent liquid cooling
• Fire Suppression: Aerosol, pack and compartment level
• Dimensions (W×D×H): 2,100 × 1,456 × 2,380 mm
• Weight: 3,500 kg
• Installation: Outdoor, on foundation
• Communication: LAN / CAN / RS485
• Ingress Protection: IP54, anti-corrosion C4
• Altitude: up to 3,000 m

Engineered Safety and System Management

The BSA-XL uses a 52-cell passive balancing module with full protection against overcharge, over-discharge and overheating, backed by multi-stage fuse protection and hardware self-diagnostics.

• Cell and pack voltage monitoring
• Current, temperature and insulation supervision
• Over-charge, over-discharge and over-current protection
• Short-circuit and over-temperature protection
• Two-level aerosol fire suppression, at pack and compartment level
• Smoke, heat and gas detection with EMS alarm escalation
• Dedicated waterproof antenna for wireless communication

The NFPP cathode is the foundation of all of this. Its phosphate framework changes volume by less than four percent across thousands of cycles, which practically eliminates particle degradation and internal short circuits, and it does not release oxygen at high charge voltage, so there is nothing to feed a fire.

Ideal For

✔ Industrial peak shaving and demand charge reduction

✔ Tariff arbitrage and grid balancing services

✔ Reactive power compensation

✔ Manufacturing sites with heavy motor loads

✔ Solar and wind self-consumption at scale

✔ EV charging hubs and grid-constrained sites

Warranty

Freen-BSA-XL is covered under Freen’s long-term limited product warranty, with manufacturer support and guaranteed retained capacity for stationary energy storage.