80kW Residential Solar Energy Storage System with 20 kW Solar Plant | Kanpur, Uttar Pradesh

Project Overview

Client: Residential Customer (Confidential)

Location: Kanpur

Project Date: Oct 2025

Application: Residential Solar Energy Storage & Backup System

Customer Requirement

The customer owned a large residential property with a peak power demand of 20–22 kW and a regular operating load of 10–12 kW. While a 20 kW rooftop solar system was already installed, the customer wanted a robust energy storage solution to maximize solar utilization and ensure uninterrupted power availability during grid outages.

Key Requirements:

• Support peak residential loads of up to 22 kW
• Provide extended backup during power failures
• Store excess energy generated by the 20 kW solar plant
• Reduce dependency on grid electricity
• Ensure seamless operation of essential and high-power household appliances
• Achieve greater energy independence and lower electricity costs

Powerstorm Solution

Powerstorm Technology designed and supplied an 80 kWh Lithium Iron Phosphate (LiFePO₄) Energy Storage System integrated with dual hybrid solar inverters.

Parameter Specification:

Solar Capacity: 20 kW Rooftop Solar Plant

Battery Pack Capacity: 51.2V 100Ah

Number of Battery Packs:16 Nos.

Total Battery Capacity: 81.92 kWh

Battery Chemistry: LiFePO₄

Inverters : 2 × 12 kW Galaxy 12K Version 7G PRO (Cellcronic)

Inverter Configuration: Parallel Operation

Total Inverter Capacity: 24 kW

Battery Management: Smart Integrated BMS with Active Balancing

Implementation

The system consists of 16 lithium battery packs connected in parallel, providing a total usable storage capacity of approximately 80 kWh. Two Galaxy 12K Version 7G PRO Hybrid Solar Inverters were configured in parallel to deliver a combined output capacity of 24 kW.

The solution enables efficient solar energy storage during daytime and automatic power supply to household loads during evening hours or utility outages.

Results Achieved

✅ Whole-home backup capability

✅ Stores excess solar energy for evening and nighttime consumption

✅ Reduced dependency on grid electricity

✅ Seamless operation of high-power residential loads

✅ Reliable power during prolonged outages

✅ Enhanced energy independence

Customer Outcomes

• Increased solar energy utilization
• Lower monthly electricity expenses
• Reliable backup during grid failures
• Enhanced energy security for the household
• Long-term return on investment from solar and storage integration
• Comfortable and uninterrupted lifestyle regardless of utility outages

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