What Is a C&I Energy Storage System?

A Commercial & Industrial Energy Storage System (C&I ESS) is a battery-powered solution that helps businesses manage electricity use more efficiently. By storing electricity during off-peak hours and releasing it when demand spikes, C&I ESS helps reduce energy costs, enhances grid reliability, and enables smooth integration with solar or wind power.

These systems typically incorporate:

Advanced lithium iron phosphate (LFP) batteries

A Battery Management System (BMS)

Power Conversion Systems (PCS)

A Smart Energy Management System (EMS)

Types of C&I ESS Offered by Dagong ESS

🔹 Air-Cooled ESS (100–241kWh)

Fan-based cooling

Ideal for indoor or mild climates

Lower upfront cost, easy to maintain

Certified (CE, UN38.3, MSDS, IEC)

🔹 Liquid-Cooled ESS (215–372kWh)

Circulating coolant for stable temperature control

Designed for high-load factories, logistics hubs, and EV charging stations

Longer life and enhanced safety in harsh conditions

🔹 Cabinet & Rack-Mounted ESS (50–250kWh)

Compact footprint for space-constrained sites

Scalable for growing energy needs

Ideal for commercial buildings, hotels, or offices

🔹 Containerized ESS (Up to 5MWh+)

All-in-one plug-and-play systems

Suitable for utility-scale installations and distributed energy projects

Available in 20ft and 40ft container formats

Key Features & Benefits

Peak Shaving: Minimize electricity bills during peak tariffs

Backup Power: Uninterrupted supply during outages

Energy Arbitrage: Buy low, use high — store low-cost energy, use during expensive hours

Renewable Storage: Capture surplus PV/wind energy for later use

Smart EMS: Optimize operation based on demand, tariffs, and PV availability

Certifications: CE, UN38.3, MSDS, IEC, 3C compliant

Common Application Scenarios

Manufacturing plants & assembly lines

Shopping malls, hotels, commercial real estate

Cold storage & food warehousing

EV fleet charging stations

Data centers & telecom base stations

PV + ESS rooftop integrations

How to Choose the Right ESS for Your Project?

System Lifespan & Performance

A premium commercial ESS typically operates for 10–15 years with 8,000+ cycles at 70% SOH.

Liquid-cooled models maintain performance under 24/7 or heavy-load use.

Long lifespan depends on proper EMS tuning, BMS monitoring, and regular system diagnostics.

Price Considerations

C&I ESS pricing varies based on capacity, cooling method, configuration, and installation complexity.For an accurate quotation, contact Dagong ESS with your specific project requirements.

Why Choose Dagong ESS?

Dagong ESS delivers industrial-grade, internationally certified energy storage solutions tailored for commercial users:

Air-Cooled ESS (100–241kWh)
Liquid-Cooled ESS (215–372kWh)
Custom 3.35MWh & 5MWh Containerized ESS
Smart EMS + BMS Integration
Modular Design for Easy Expansion
Global Certifications: CE, UN38.3, MSDS, 3C, IEC

Ready to upgrade your business with a smarter ESS?
Contact Dagong ESS today:
📧 Email: sales@dagongess.com
🌐 Website: www.dagongess.com