BESS-125-241K 125kW commercial battery backup for peak shaving

BESS | 125kW PCS | 241.15kWh Enery Storage | DC Voltage: 768VDC | IP55

SKU: BESS-125-241K Category:

In an era of rising energy costs and grid instability, businesses need reliable solutions to manage power consumption efficiently. GRANKIA BESS-125-241K stands out as a premier 125kW commercial battery backup system, specifically engineered for industrial and commercial applications. You may want to reduce demand charges through peak shaving.

Alternatively, you could ensure business continuity during outages. This all-in-one energy storage system delivers performance, safety, and intelligence in a single compact unit.

GRANKIA BESS-125-241K 125kW commercial battery backup for peak shaving

What is a 125kW Commercial Battery Backup?

A 125kW commercial battery backup is an advanced energy storage system. It is designed to help businesses reduce electricity costs and improve energy efficiency, also ensures a reliable power supply. The BESS-125-241K is specifically engineered for peak shaving. It enables commercial and industrial users to lower demand charges, and optimizes energy usage.

With a rated output of 125kW and a usable energy capacity of 241kWh, it is an ideal solution for businesses. These businesses can look to reduce demand charges through peak shaving. At the same time, they can maintain 24/7 operational resilience.

Key Features

Powerful Peak Shaving

The system intelligently discharges stored energy during peak tariff hours. By lowering your peak demand from the grid, you significantly reduce monthly electricity bills and demand charges.

Uninterrupted Power Supply

It acts as a robust 125kW commercial battery backup. It seamlessly switches to off-grid mode during power outages in less than 20ms. This keeps critical loads running without interruption.

High Safety Standards

Safety is paramount. The unit features a multi-level protection system. It includes LFP (LiFePO4) chemistry and active cell balancing. It also has integrated fire suppression (aerosol or perfluorohexanone) to prevent thermal runaway.

Smart EMS Integration

The built-in Energy Management System (EMS) allows for remote monitoring via cloud platforms or mobile apps. You can visualize real-time data, set charging strategies, and perform remote firmware updates.

Scalable Parallel Design

  • Supports up to 3 systems in parallel
  • Expandable for larger commercial applications
  • Flexible deployment for different load requirements

Why Choose a 125kW Commercial Battery Backup for Peak Shaving?

Businesses often face high utility bills not just from total energy consumption. They incur fees based on the highest amount of power used during a billing cycle. These fees are known as demand charges. This is where peak shaving becomes critical.

The Mechanism of Peak Shaving

Using a 125kW commercial battery backup like the BESS-125-241K, the system automatically discharges. This occurs during short periods of high energy usage (peaks). By “shaving” these peaks off your grid consumption, the system:

  1. Reduces Demand Charges: Lowers the maximum kW demand recorded by the utility meter.

  2. Lowers Energy Costs: Discharges during high Time-of-Use (TOU) rates and charges during off-peak hours.

  3. Extends Equipment Life: Reduces stress on existing electrical infrastructure by smoothing out load spikes.

Technical Specifications (Overview)

Specification Details
System Type Commercial & Industrial (C&I) Energy Storage
Rated Power 125 kW
Energy Capacity 241.15 kWh
Battery Technology LiFePO₄ (LFP) – Safe, Long Cycle Life
Voltage Range 728V – 936V DC
Round-trip Efficiency ≥ 92%
Cooling Method Intelligent Air Cooling
Protection Rating IP55 (Suitable for harsh factory environments)
Communication CAN, RS485, Ethernet

How Peak Shaving Works with a 125kW Commercial Battery Backup

Peak shaving is one of the most valuable applications of the BESS-125-241K.

Step-by-Step Process:

  1. Charge During Off-Peak Hours
    The battery stores energy when electricity prices are low.
  2. Discharge During Peak Hours
    The system releases stored energy when demand and tariffs are high.
  3. Reduce Demand Charges
    This minimizes peak load from the grid, lowering utility costs.

Applications

This 125kW commercial battery backup is versatile enough to serve a wide range of sectors:

  • Manufacturing Facilities: Smooth out heavy machinery start-up spikes.

  • EV Charging Stations: Buffer grid capacity to avoid demand spikes from fast chargers.

  • Office Buildings: Shift HVAC and lighting loads to reduce peak demand.

  • Retail & Grocery: Protect refrigeration units and ensure business continuity during outages.

  • Healthcare Clinics: Provide reliable backup power for life-safety equipment without diesel generator noise or emissions.

FAQ

Q1: Can the BESS-125-241K commercial battery backup run completely off-grid?

Yes, it functions as a hybrid system. It can operate in off-grid mode to provide backup power. It can also serve as a primary source for isolated loads. This is possible if the battery has sufficient charge.

Q2: Is this BESS system compatible with solar panels?

Absolutely. The BESS-125-241K can be integrated into existing PV systems. It stores excess solar generation for use during the evening or cloudy days. This maximizes self-consumption.

Q3: How long does commercial battery backup installation take?

The BESS-125-241K is pre-assembled and factory-tested. Typical installation time ranges from 1 to 3 days, depending on site electrical infrastructure and permitting.

Q4: What happens if the grid fails during peak shaving?

The commercial battery backup system detects grid failure within milliseconds and seamlessly transitions to island mode. It continues supplying power to critical loads while peak shaving operations pause temporarily. When grid power is restored, the system automatically resynchronizes and resumes normal peak shaving functions without interruption.

Q5: How much can I save with a commercial BESS?

Businesses typically save 20% to 50% on electricity costs, depending on energy usage and tariff structures.

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The BESS-100-261K 100kW commercial battery system combines durability, intelligence, and scalability for real-world energy challenges. Whether you’re reducing operational costs or building a resilient microgrid, this system delivers performance you can count on—rain or shine.

 

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    MODEL BESS-125-241K
    Battery Parameters
    Battery Type LiFePO4 Lithium Iron Phosphate
    Cell Capacity 3.2V 314Ah
    Cell Combination 20S1P
    Number of battery packs 12
    Battery Group Method 240S1P
    Rated Energy 241.15kWh
    Rated Voltage 768VDC
    Voltage range 672~864VDC
    Rated Charge / Discharge Current 140A
    Max. Continous Charge / Discharge Current 157A
    Cycle Life ≥8,000 cycles (at 25℃, 0.5C, 80% DoD)
    PV Parameters
    Max. PV Input Power 100KW (50KW * 2)
    High Voltage Side Voltage 560VDC – 1000VDC
    High Voltage Side Current 160A
    Low Voltage Side Voltage 500VDC – 900VDC
    Low Voltage Side Current 200A
    AC Side Parameters
    Rated Input Power 125KW
    Rated Output Power 125KW
    Rated Voltage 3L/N/PE; 380VAC/400VAC/415VAC
    Voltage Range 320VAC – 460VAC
    Rated Frequency 50Hz / 60Hz
    Frequency Range 45Hz-55Hz / 55Hz-65Hz
    Rated Current 180A
    Overload Capacity 110%
    THDi ≤3%
    Power Factor 0.8 leading to 0.8 lagging
    Isolation Method Non-isolated
    Uninterrupted Load (STS) – Optional
    STS Power 200KW
    STS Voltage 3L/N/PE; 380VAC/400VAC/415VAC
    Overload Capacity 110%
    Transfer Time < 20ms
    System Parameters
    Energy Efficiency ≥ 90%
    Operation Modes Grid-tied / Off-grid
    Expansion Support in Parallel
    Protection Level IP55
    Cooling Intelligent Air Cooling
    Noise ≤ 65dB
    Fire Protection Aerosol
    Operation Temperature -20~55℃
    Humidity 0%~95% RH (no condensation)
    Altitude <2000m (derating above 2000m)
    Communication Port CAN, RS485, WiFi, TCP/IP
    Dimension (WxDxH) 1110x2050x1745mm
    Weight Approx. 2.4 – 2.6Tons
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