Distributed Energy Storage System 6MWh

Project Name: Gansu Clean Energy Off-Grid PV-Storage Integration System Project

I. Project Overview

This project is located in Gansu Province, China, for which UNIWEALTH provides a complete off-grid PV-storage system solution. The project is based on high-efficiency monocrystalline silicon solar cells and a self-developed lithium iron phosphate battery energy storage system, aiming to build a stable, reliable, and green energy supply system. It effectively addresses local high-radiation conditions and independent power demand, making it suitable for power supply in remote areas, industrial backup power, and clean energy demonstration scenarios.

II. System Configuration & Technical Highlights

1. PV Section: High-Efficiency Monocrystalline Silicon Solar Cells

  • Utilizes monocrystalline silicon modules with high conversion efficiency (>22%), adapted to Gansu’s high-irradiation, sandy, and dusty environment;

  • Exhibits excellent temperature coefficient performance, maintaining stable power generation even under high-temperature conditions;

  • Equipped with an intelligent MPPT controller to maximize energy capture efficiency.

2. Energy Storage Section: UNIWEALTH Lithium Iron Phosphate Battery System

  • Features high-safety, long-cycle lithium iron phosphate battery modules;

  • Integrated with a self-developed intelligent BMS supporting cell-level monitoring and dynamic balancing;

  • The system has a wide operating temperature range (-20°C to 60°C), adapting to Gansu’s large diurnal temperature variations and cold winter conditions.

3. Energy Management System (EMS)

  • Enables intelligent PV-storage coordination and optimized load dispatch;

  • Supports flexible off-grid/on-grid switching with black-start capability;

  • Provides a remote monitoring and O&M platform, supporting data visualization and fault alerts.

III. Project Value & Outcomes

  • Economic Benefits: Significantly reduces reliance on diesel power generation and lowers energy expenses, with an estimated payback period of approximately 4–6 years;

  • Environmental Benefits: Reduces annual CO₂ emissions by approximately 200 tons, supporting local green and low-carbon development;

  • Social Benefits: Improves local power supply reliability, supporting electricity access improvement and sustainable development in remote areas.

IV. Why Choose UNIWEALTH?

  • Full-Chain Proprietary Technology: From batteries and BMS to system integration, achieving complete end-to-end control;

  • Rigorous Environmental Validation: The system has been stably operated in multiple similar environments both domestically and internationally;

  • Full Life-Cycle Service: Provides one-stop support from design and deployment to O&M, ensuring long-term reliable project operation.