What is BESS?

BESS is a system that stores electricity in rechargeable batteries and delivers it when needed. It plays a crucial role in:

Balancing energy supply and demand

Ensuring uninterrupted power during outages

Enhancing the efficiency of solar and wind energy systems

Reducing peak-time electricity costs

Main Types of BESS

By Battery Chemistry:

LFP (Lithium Iron Phosphate): Safe, long-lasting, ideal for homes and commercial users.

NMC (Nickel Manganese Cobalt): High energy density, suitable for space-constrained or large-scale applications.

By Cooling Method:

Air-Cooled Systems: Simple and cost-efficient for general environments.

Liquid-Cooled Systems: Enhanced thermal performance for larger systems or hot climates.

By Installation Format:

Cabinet Solutions: Modular and space-saving, used in commercial or industrial sites.

Containerized Systems: Scalable for utility-level or large-scale renewable projects.

Key System Components

Battery Packs: Core energy storage unit using LFP or NMC cells.

BMS (Battery Management System): Protects the system by monitoring voltage, temperature, and performance.

PCS (Power Conversion System): Manages AC/DC power flow.

EMS (Energy Management System): Controls energy usage and system behavior.

Cooling Unit: Maintains battery temperature for safe operation.

Fire Safety System: Built-in detection and suppression features.

Modular Design: Scalable from 5kWh up to hundreds of kWh or more.

Where is BESS Used?

Renewable Energy Projects: Store excess energy for later use.

Industrial Peak Shaving: Lower operational costs by reducing grid reliance at peak hours.

Backup Power: Prevent downtime for factories, data centers, and homes.

Remote Areas & Microgrids: Provide energy autonomy in off-grid or island locations.

Utility Services: Support grid with load shifting, frequency control, and voltage regulation.

How Much Does a BESS Cost?

BESS pricing depends on system capacity, battery type, and market conditions. Most suppliers offer EXW-based quotes. Costs may also vary with raw material prices and currency rates. For accurate pricing, it's best to contact a trusted manufacturer for a customized quote.

How to Select the Right BESS

When planning a project, assess:

Power & Energy Requirements

Application Scenario (e.g., backup, off-grid, solar integration)

Preferred Battery Chemistry (LFP or NMC)

Cooling Requirements

Relevant Certifications (e.g., UL, CE, UN38.3)

Return on Investment (ROI)

Lifespan and Warranty

LFP systems typically support 4,000–6,000 cycles, lasting 10–15 years.

Most BESS come with a 5 to 10-year warranty.

Capacity may gradually degrade by 10–20% over time.

Choose a Trusted BESS Manufacturer

Dagong ESS, a division of Dagong New Energy, specializes in customized energy storage solutions for global clients. We offer:

Home Energy Storage Systems: 5–80kWh

C&I Storage Cabinets: 100–215kWh

Containerized Utility-Scale BESS: 1MWh and beyond

Our systems are designed for hybrid applications (solar + grid), with advanced safety, remote monitoring, and global certifications.

📩 Interested in reliable BESS solutions?
Contact Dagong ESS for detailed product specifications or a tailored quote for your energy project.