I. Project Background

Policy Direction:

Thailand is advancing its “3030 Policy” and the new Power Development Plan (PDP), targeting 51% renewable energy in the energy mix by 2037. This includes subsidies and zero-tariff incentives for solar-storage projects. Additionally, the new TISI mandatory certification requirements effective in 2026 necessitate high adaptability and safety in energy storage systems.

Market Pain Point: 

In 2025, inflation in Thailand drove up electricity prices, with peak-valley rate differences exceeding 2.5 THB/kWh. Strict Time-of-Use (TOU) tariff mechanisms for industrial and commercial users, combined with the challenge of high temperature and humidity on energy equipment, continue to escalate business electricity costs.

Industry Trend:

2025 marks a rapid development phase for Chinese energy storage companies expanding overseas. Southeast Asia has emerged as a core emerging market, where the synergy model of “Solar + Storage + Mains” has become the optimal solution for commercial and industrial users to reduce costs and transition to green power.

II. Project Overview

Project Location: 

Thailand (Industrial Park/Factory)

Project Model:

Grid-connected Solar + Storage + Mains Hybrid System

Storage Configuration:

6 units of 100kW/241kWh Air-cooled Integrated Storage Cabinets, Total Power: 600kW, Total Capacity: 1446kWh

Core Functions: 

PV Anti-backflow, On-site Green Power Consumption, Peak Load Shifting, Electricity Cost Optimization

III. Customer Pain Points

1.Significant peak-valley electricity price difference leading to high peak-time costs.

2.Rooftop solar PV system must comply with anti-backflow regulations; surplus power cannot be fed into the grid.

3.Insufficient green power consumption, resulting in low self-utilization rate of generated solar power.

4.Risk of exceeding contracted capacity during peak demand, leading to potential load shedding and demand charge penalties.

5.High temperature and humidity environment demanding superior heat dissipation and reliability from storage equipment.

IV. Solution

An integrated solution combining “Solar PV + Air-cooled Storage Cabinets + Smart EMS” was implemented to achieve solar-storage coordination, intelligent dispatch, and safe grid connection.

1. System Architecture

• PV array connected to the AC grid side.
• 6 units of 100kW/241kWh Air-cooled Storage Cabinets connected in parallel to the grid.
• EMS (Energy Management System) for unified scheduling of PV, storage, mains power, and loads.

2. Core Strategies

• Anti-backflow Control: Real-time monitoring of power at the grid connection point, dynamically adjusting PV output and storage charging/discharging.
• Green Power Consumption: PV power preferentially supplies loads; surplus energy charges the storage system, increasing the self-utilization rate.
• Peak Load Shifting: Charging from grid/PV during low-tariff periods, discharging during high-tariff periods to reduce electricity expenses.
• Air-cooled Reliability: Designed for overseas installation environments, easy operation and maintenance, stable and durable.

V. Operational Logic

1.Daytime: PV generation → Priority supply to loads → Surplus PV charges storage → mains/storage supplemented.

2.Night/Peak Hours: Storage discharges to support loads, avoiding expensive peak-time electricity consumption.

3.Anti-backflow: Real-time closed-loop regulation ensures no power is fed back into the grid, ensuring compliant grid connection.

4.Protection Logic: Comprehensive protection including over/under voltage, overcurrent, overload, over temperature, insulation monitoring, and lightning protection.

VI. Project Value

1. Economic Benefits

• Significant reduction in electricity bills through peak-valley arbitrage and reduced peak demand consumption.
• Avoidance of demand charges, ensuring stable production power.
• Increased self-utilization rate of solar PV, maximizing green energy benefits.

2. Compliance and Safety

• Meet the anti-backflow grid connection requirements of PEA/MEA in Thailand
• Supports the development of green factories and zero-carbon industrial parks.

3. Green Value

• Increase the proportion of green electricity consumption and reduce carbon emissions.
• Supports the development of green factories and zero-carbon industrial parks.

VII. Product Highlights

• 100kW/241kWh Standard Air-cooled Cabinet: Plug-and-play design, easy to transport and install.
• Supports manual on/off-grid switching, anti-backflow, peak-valley arbitrage, and remote monitoring.
• Strong environmental adaptability, ideal for tropical regions like Southeast Asia.
• Batch export quality, fast delivery, simple operation and maintenance.

VIII. Equipment Photos