Singfo Solar Industrial ESS Solutions: Proven 5GW+ Global Track Record & Factory Visit Invitation

Solving Factory Peak Load Challenges: A Practical Guide from Singfo Solar

For industrial facilities around the world, electricity costs and grid instability have become critical operational burdens. As more factories seek energy independence and cost predictability, Singfo Solar has emerged as a trusted partner with over 18 years of photovoltaic power industry experience, 5GW+ cumulative overseas installations, and multiple international certifications including TUV, CE, ISO 9001, IEC 61215, and IEC 61730.

Below, we explain how our industrial energy storage solutions address real-world factory challenges—covering load curve analysis, battery capacity selection, equipment specifications, safety systems, proven reference projects, and comprehensive warranty terms. We warmly invite you to visit our GWh-capacity manufacturing base in Dongguan, China, to witness our solutions firsthand.

Step 1: Understanding Your Factory Load Curve & Single-Line Diagram Foundation

Every successful industrial energy storage project begins with a thorough analysis of the factory‘s load profile. At Singfo Solar, our engineering team follows a systematic methodology for load curve analysis to optimize energy storage system (ESS) performance.

Load Data Collection & Analysis

The first step involves collecting high-resolution load data—typically 15-minute to hourly intervals over at least 12 months—to capture both seasonal variations and daily operational patterns. Our engineers analyze this data to identify:

· Peak load periods– Time windows when energy consumption spikes

· Valley load periods– Times of low consumption ideal for battery charging

· Peak-to-valley differential– The magnitude of load variation throughout the day

Battery Capacity Selection Criteria

Using the analyzed load curve data, we employ a proven capacity sizing formula:

Capacity Calculation Formula:

Battery Capacity (kWh) = (Target Peak Shaving Power × Discharge Duration) ÷ (System Efficiency × Depth of Discharge)

Where:

· Target Peak Shaving Power= Current Peak Load – Target Peak Load (from your load curve data)

· Discharge Duration= Hours of peak period coverage needed (typically 2–4 hours for industrial users)

· System Efficiency= 90–95% (accounting for inverter and conversion losses)

· Depth of Discharge (DoD)= 80% for lithium iron phosphate (LFP) batteries

Single-Line Diagram Architecture

The system electrical architecture follows a standard single-line diagram topology where the energy storage system is connected at the low-voltage side of the factory‘s main transformer, before the main distribution panel. This configuration provides maximum flexibility, allowing the ESS to serve both peak shaving and backup power functions. The EMS continuously monitors grid conditions, load demands, and battery status, issuing commands to the PCS for charging and discharging.

Step 2: Premium Equipment – Batteries & PCS

Singfo Solar utilizes only grade-A battery cells from top-tier, globally-recognized suppliers, integrated with high-efficiency power conversion systems. OurSINGFO battery modulesutilizelithium iron phosphate (LFP) technology, widely recognized for its superior thermal stability and long cycle life. Standard configurations include:

· 100kW / 215kWh– Ideal for small-to-medium workshops

· 250kW / 500kWh– Perfect for mid-sized industrial facilities

· 500kW / 1MWh– Standard containerized solution for large factories

For PCS (Power Conversion Systems), Singfo Solar partners with leading global inverter brands. Our integrated solutions typically utilize high-efficiency bidirectional converters with the following specifications:

· Rated power range: 100kW – 5,000MW

· Conversion efficiency: ≥ 98% (peak)

· Grid-tied, off-grid, and hybrid operation modes fully supported

· Fast response time for seamless peak shaving and backup transitions

All Singfo Solar ESS products are manufactured in our Dongguan facility, certified to international standards including CE, IEC, and UL.

Step 3: Multi-Layer Safety – Fire Protection, Thermal Runaway Control & EMS Architecture

Safety is non-negotiable in industrial energy storage. Singfo Solar has developed an integrated safety architecture based on three defensive layers:

1. Active Fire Protection System

Our ESS cabinets and containers are equipped with a multi-sensor fire detection system incorporating temperature sensors, smoke detectors, and gas sensors for early warning. Upon detection of abnormal conditions, the system automatically triggers alarm signals and activates environmentally-friendly aerosol or gas-based fire suppression agents certified for lithium battery fires. Remote notifications are sent to the EMS cloud platform for immediate operator awareness.

2. Thermal Runaway Prevention

To prevent cascading thermal runaway events, Singfo Solar implements multiple protective measures: battery cells are monitored individually for voltage and temperature anomalies; passive and active cell balancing technologies ensure uniform charge distribution; and liquid-cooled thermal management systems maintain optimal battery temperature between 15–35°C, significantly reducing thermal runaway risk.

3. Intelligent EMS Architecture

Our proprietary Energy Management System (EMS) serves as the brain of the entire installation. The EMS performs continuous load forecasting, optimizes charge/discharge strategies based on real-time electricity tariffs, and executes automated safety shutdowns if any parameter exceeds safety thresholds. Remote monitoring via mobile app or web portal allows factory operators to track system performance anytime, anywhere.

Step 4: Two Proven Reference Plants (500kW – 2MW Scale)

Singfo Solar has successfully deployed numerous industrial-scale projects worldwide. Below are two representative examples within the 500kW to 2MW range.

Reference Project 1: Dongguan 500kW/1MWh Factory PV + Storage Demonstration Plant

Located at Singfo Solar‘s own facility in Dongguan, China, this flagship project combines a rooftop solar carport and ground-mounted PV array with a 500kW/1MWh battery energy storage system. Since commissioning, the system has generated approximately 2,000 kWh of green electricity daily, supplying nearly 600,000 kWh of clean power annually to the factory—a typical industrial PV-storage-charging integrated demonstration. Customers visiting the site have consistently praised our integrated fire suppression and active cell balancing technologies.

Reference Project 2: Bloemfontein, South Africa – 2.2MW Solar + 3.4MWh Storage Hybrid System

Singfo Solar successfully commissioned a 2.2MW solar PV + 3.4MWh energy storage hybrid system for a major shopping mall in Bloemfontein, South Africa. Installed on the mall‘s existing color-coated steel sheet roof, the system generates 10,560 kWh daily. The 3.4MWh storage provides seamless backup power for critical loads (freezers, lighting, security, POS systems) during grid outages—avoiding business interruption and spoiled goods. The system also performs peak shaving and arbitrage, charging during low-tariff periods and discharging during peak periods. Annual savings exceed 6.16 million CNY, with a payback period of only 4–5 years. The EMS provides real-time load forecasting, optimizes charge/discharge strategies, and supports remote monitoring via mobile app.

Step 5: Comprehensive Warranty Terms

Singfo Solar stands behind every component of our systems with transparent, industry-leading warranty terms.

Your Factory Visit Awaits – See Our Solutions In Action

Theory and numbers only tell part of the story. At Singfo Solar, we invite international partners, distributors, EPC contractors, and project developers to visit our manufacturing base in Dongguan, Guangdong Province, where our 1GWh-annual-capacity facility spans fully automated assembly lines from cell sorting and precision manufacturing to final system integration.

During your visit, you will:

· Tour our highly automated production linesand witness full-process quality control from raw material sourcing to strict quality inspection

· Inspect live single-line diagram implementationsacross multiple reference installations on site

· Witness integrated fire protection and thermal management systemsin action through live demonstrations

· Review actual load curve analysis casesand see how our capacity selection methodology translates into real-world savings

· Engage directly with our engineering teamon your factory‘s specific requirements

Conclusion

With 5GW+ cumulative overseas installations, international certifications, a 1GWh annual ESS manufacturing capacity, and successful industrial reference projects across multiple continents, Singfo Solar has the expertise and production capability to deliver robust, safe, cost-effective energy storage solutions for factories worldwide.

Contact us today to schedule your factory visit and begin solving your factory‘s peak load challenges—together.