AIO-33K64LV-3P 33kW C&I Energy Storage System for Off Grid Power

GRANKIA AIO-33K64LV-3P is a 33kW three-phase C&I energy storage system for off-grid commercial and industrial sites. It integrates 64.3kWh LiFePO₄ storage, a 39kW multi-MPPT solar charger, and a built-in ATS in one floor-mounted cabinet. PV-to-inverter efficiency exceeds 96% under peak conditions. Up to 4 units parallel to 132kW.

The C&I energy storage system supplies backup power, captures solar generation, and maintains three-phase AC output in areas where the grid is absent or unreliable. Use cases include commercial buildings, factories, farms, remote facilities, and off-grid power installations.

Why Off-Grid C&I Sites Need a Purpose-Built Energy Storage System

Commercial and industrial operations in regions with weak or no grid access face a known cost structure: diesel generators burn fuel at rates that escalate with runtime, and standard grid-tied inverters lack the control logic for islanded operation.

A C&I energy storage system solves this by combining PV input, battery storage, and load dispatch in one self-contained power unit.

GRANKIA AIO-33K64LV-3P targets this use case—mining camps, telecom shelters, agricultural processing lines, and industrial parks that run off-grid or on an unstable grid.

Reliable Energy Storage for Commercial and Industrial Applications

Commercial and industrial facilities operate under grid instability, tariff increases, and variable solar output.

Conventional backup setups require separate battery enclosures, external inverters, and external energy management controllers.

The AIO-33K64LV-3P C&I energy storage system integrates:

• High-power three-phase solar inverter
• Long-life LiFePO₄ battery modules
• Intelligent energy management
• Off-grid and backup power capability

This integration reduces deployment steps and lowers the number of interconnection points.

The system serves businesses that need predictable power availability, solar integration, and dispatchable storage.

AIO-33K64LV-3P Integrated Energy Solution

The AIO-33K64LV-3P is a complete 3 phase C&I energy storage system.

It integrates:

• 33kW three-phase inverter
• 64.3kWh lithium iron phosphate battery pack
• 39kW maximum PV input
• Multi-channel MPPT solar charging
• Advanced battery management system (BMS)

The system operates in standalone off-grid mode or in hybrid configurations with generators or grid inputs.

It charges from PV during daylight and discharges from the battery during night hours or grid outages.

Key Features & Benefits

High-Capacity DC-Coupled Solar Charging

The system accepts up to 39kW of PV input across 3 MPPT trackers (6 strings). Charge current reaches 480A maximum. The MPPT voltage window spans 60–450VDC.

DC coupling eliminates one AC-DC conversion stage. PV-to-inverter efficiency measures above 96% at nominal operating points. This translates to higher DC energy transfer to the battery and loads per installed kWp, which reduces generator runtime hours and shortens the payback period for off-grid sites.

Integrated 33kW Three-Phase Power

The system combines inverter, battery storage, and energy management functions into one cabinet.

Output rating:

• 33kW rated output
• Three-phase AC power
• High conversion efficiency
• Simplified installation

Compared to separate inverter cabinets and battery racks, the integrated architecture reduces:

• Engineering complexity
• Installation time
• Communication wiring requirements
• Maintenance workload

Benefits:

You will gain a complete storage installation with fewer integration steps.

Factories, workshops, and remote facilities receive three-phase AC without external system assembly.

Industrial-Grade LiFePO4 Battery Bank

AIO-33K64LV-3P C&I energy storage system uses lithium iron phosphate battery technology.

The battery system provides:

• 64.3kWh usable energy storage
• High thermal stability
• Long cycle life
• Safe operation characteristics

LiFePO₄ chemistry is widely adopted in commercial energy storage because of its excellent safety performance.

Comparison to lead-acid:

Longer cycle life reduces battery replacement events over a 10-year operation window.

You will obtain lower total cost per kWh discharged over the system lifetime.

The 33kW commercial energy storage system is especially suitable for:

• Remote commercial sites
• Agricultural facilities
• Telecom infrastructure
• Industrial buildings

Built-In ATS and Three-Phase Unbalanced Load Support

The internal ATS accepts generator or grid input. Transfer times: 10ms for UPS-connected loads, 20ms for general loads. The inverter outputs 100% unbalanced load per phase.

Process controllers, refrigeration compressors, and telecom rectifiers see no power gap during source transitions.

Production lines and site infrastructure remain online during phase imbalance conditions up to full per-phase rating.

Multi-Unit Parallel Expansion

You can parallel up to 4 units via AC coupling or DC bus expansion. One cabinet scales to 132kW and 257.2kWh with 4 units.

You start with one unit and add cabinets as load increases. Capital expenditure follows load growth rather than front-loading full capacity.

Project developers gain visibility into ROI with phased investment.

Intelligent Energy Management and Safety Protection

Battery Management System (BMS)

The integrated BMS continuously monitors:

• Cell voltage
• Temperature
• Charging current
• Discharging current
• State of charge (SOC)

Protection functions include:

• Over-voltage protection
• Over-current protection
• Short-circuit protection
• Over-temperature protection
• Low-temperature protection

Inverter Protection

This inverter provides:

• Three-phase output protection
• PV over-voltage protection
• Grid monitoring
• Anti-islanding protection
• Fault diagnosis

The system design follows international electrical safety requirements and supports compliance with applicable standards such as:

• IEC 62109 inverter safety requirements
• IEC 62619 industrial lithium battery safety
• UN38.3 battery transportation testing

Product Specifications

C&I Energy Storage System vs Conventional Backup Solutions

Where the AIO-33K64LV-3P Fits

Commercial and industrial facilities require AC power for operations.

Power interruptions can cause:

• Production downtime
• Equipment damage
• Revenue losses
• Reduced operational efficiency

The AIO-33K64LV-3P supplies PV generation, battery storage, and load control in one package.

Remote Industrial Facilities

Many remote locations lack reliable grid infrastructure.

Examples include:

• Mining sites
• Agricultural processing plants
• Construction camps
• Remote warehouses
• Island facilities

For these applications, the system works as a standalone energy platform.

Solar energy is stored during the day.

Battery power supports loads during night hours or cloudy periods.

Commercial Buildings and Small Industrial Parks

Commercial buildings often experience:

• High daytime electricity demand
• Peak electricity pricing
• Grid instability

The system helps businesses reduce electricity costs through:

• Solar self-consumption
• Peak shaving
• Load shifting
• Backup power operation

Installation and System Deployment

Step 1: Energy Assessment

Analyze:

• Daily electricity consumption
• Peak load requirements
• Solar availability
• Backup duration

Step 2: PV System Design

Configure:

• Solar panel capacity
• MPPT allocation
• Cable sizing
• Protection devices

Step 3: ESS Installation

Install:

• Integrated energy storage cabinet
• AC distribution system
• Communication connection
• Monitoring platform

Step 4: Commissioning

Verify:

• Battery charging performance
• Inverter operation
• Protection functions
• Energy management settings

FAQ

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