Project Overview

Process lines that cannot tolerate stoppages use cabinet LiFePO4 energy storage as a bridge power source, with hybrid/off-grid inverters handling pure sine conversion.

Customer Challenge

Grid quality issues caused PLC resets and scrap. Diesel gensets were expensive to run for short interruptions and required manual start procedures.

Longlight Solution

Install Longlight-304 18kWh cabinet ESS with Longlight-INV6 (or Longlight-205 off-grid for pure islanding zones). Automatic transfer keeps PLCs, conveyors and quality sensors alive while larger non-critical loads may still wait for generator.

System Architecture

• Critical process bus fed by hybrid/off-grid inverter
• Longlight-304 cabinet ESS as energy buffer
• Optional PV to recharge storage and cut daytime demand
• Facility SCADA / App SOC visibility

Key Products Deployed

Longlight-INV6 Parallel Hybrid Inverter 11kW 48VHigh-power parallel hybridView product →

Longlight-304 Cabinet LiFePO4 ESS 18kWhCabinet LiFePO4 18kWhView product →

Longlight-205 Off-grid Solar Inverter 6kW 48VOff-grid inverter option for island zonesView product →

Technical Highlights

• Floor-standing cabinet form factor for plant rooms
• Smart BMS multi-protection suite
• Bluetooth / App SOC monitoring
• Pairs with both hybrid and off-grid inverter families

System Snapshot

Results & Benefits

• Reduced unplanned downtime on critical lines
• Lower diesel runtime for short outages
• Measurable evening peak reduction

Related Equipment

Longlight-304

Longlight-INV6

Longlight-205

Reference solution based on Longlight Energy product portfolio — Solar Inverter & Battery Energy Storage Power Supply.