Project Overview
In May 2026, a commercial and industrial energy storage system was commissioned at the WIN WIN Industrial Park in Malawi. The 500 kW / 900 kWh lithium iron phosphate (LFP) energy storage system, featuring Megarevo MPS500 hybrid PCS and EMS technology, was developed by a local EPC partner working with SUNPALESS and fully self-financed by the client. On-site installation by a certified local team was completed in eight weeks.
The system primarily provides peak shaving, backup power and solar self-consumption for the park's factory facilities. It helps stabilise local feeder voltage, reduce demand charges during peak periods, maximise the use of on-site solar PV, and reduce reliance on diesel generation during power interruptions and high-demand periods. The system cuts diesel generator runtime by over 70% and avoids approximately 180 tonnes of CO₂ emissions annually, supporting more reliable and cost-effective electricity supply for industrial operations.
Challenge & Solution
Challenges
- High evening electricity demand increased peak-related operating costs
- Unstable feeder voltage affected reliable commercial operations
- On-site solar generation risked curtailment during low-load periods
- Diesel generators required frequent operation to maintain power reliability
SUNPAL ESS Solutions
- 500kW / 900kWh LFP storage system for peak demand management
- Megarevo MPS500 hybrid PCS for coordinated multi-source power control
- Intelligent EMS maximising solar self-consumption without curtailment
- Battery backup reducing diesel generator runtime by over 70%
Key Technical Specifications
| Parameter | Specification |
|---|---|
| System Type | Hybrid Energy Storage System |
| Battery Capacity | 900 kWh |
| PCS Rated Power | 500 kW |
| Battery Chemistry | Lithium Iron Phosphate (LFP) |
| Hybrid PCS / Inverter | Megarevo MPS500 |
| Energy Management System | Intelligent EMS |
| Application | Peak Shaving / Backup Power / Solar Self-Consumption |
| Diesel Runtime Reduction | 70%+ |
| On-Site Installation | 8 weeks |
Project Timeline
SEP 2025 — EPC Coordination
SUNPAL ESS worked with the local EPC partner to finalise system integration, site requirements, installation planning, and project execution arrangements.
NOV 2025 — Equipment Preparation
The 500kW MPS500 hybrid PCS, 900kWh LFP storage system, EMS, and supporting equipment were prepared for commercial site deployment.
MAR 2026 — Site Installation
The certified local team completed equipment installation, electrical connections, battery integration, and system commissioning activities over eight weeks.
APR 2026 — System Testing
Integrated testing verified peak shaving, backup operation, solar self-consumption, EMS control, and coordinated operation with the existing power infrastructure.
MAY 2026 — Commissioned
The 500kW / 900kWh hybrid energy storage system officially entered operation, supporting reliable and uninterrupted power supply for factory facilities across the WIN WIN Industrial Park.
