Battery Energy storage system BESS

The EG Solar ESS product line provide BESS with complete electrical energy storage and management system that can be configured to perform numerous functions – from reducing the intermittency of renewable generation sources to performing ancillary services in power substations.

The system consists of an energy control and management solution which coordinates the operating modes and optimizes their performance, ensuring higher efficiency and better use of energy resources, in addition to providing operational flexibility and energy supply reliability.

EG Solar flexible battery energy storage system design are designed for indoor and outdoor installation. The BESS We made suitable for whole house battery backup power And also commercial. The commercial containers BESS are built for both small-scale and large-scale energy storage systems with the power of up to multi-megawatt. from 500kwh, 600kwh, 700kwh to 1000kwh. All our systems use the same building block structure of a EG Solar partnered with our own inverter PCS, EMS. It can minimize the possibility of a single point’s failure in the system and maximize reliability. Large-scale systems use a multi-tower power source controller to manage the cells across the entire system.

BESS

What are Commercial Battery Storage Systems?

Commercial battery storage systems are large-scale energy storage solutions, akin to big power banks, designed to store and release electricity from various sources. These systems vary in size and capacity, ranging from 50 kWh to 1 MWh, making them suitable for small- to medium-sized organizations.

With a modular structure, these systems can be customized to meet specific applications and customer needs. They are widely used in facilities like schools, hospitals, petrol stations, shops, and industries to manage energy requirements effectively.

Commercial battery storage systems help support the grid by balancing demand fluctuations, providing backup power during outages, and integrating with renewable energy sources like wind and solar. They can also reduce electricity bills and create new revenue opportunities, making them a cost-effective solution for many businesses.

Advantages of Commercial Energy Storage Systems

  • Resiliency: These systems provide backup power during grid failures or other emergencies, ensuring continuous operation for critical facilities like hospitals, data centers, and industries that cannot afford power interruptions.
  • Cost Savings: Commercial energy storage systems help businesses lower electricity costs by shifting usage from peak to off-peak hours when power is cheaper. This reduces demand charges based on the highest electricity usage during a billing period. Additionally, businesses can earn revenue through demand response programs that reward reduced electricity use during peak times.
  • Renewable Integration: These systems enhance the use of renewable energy sources like solar and wind by storing excess power during high generation periods and releasing it during low generation periods. This reduces reliance on fossil fuels and lowers greenhouse gas emissions. They also stabilize the grid by balancing supply and demand and providing services like frequency control and voltage support.
  • Additional Grid Benefits: Commercial energy storage systems improve grid and societal resilience against cyberattacks and natural disasters, boost economic value and competitiveness by creating new jobs and markets, and reduce environmental impact by lowering air pollution and water consumption.
monitor system

Success BESS examples made by EG Solar

EG Solar 500kw/1mwh LFP LiFePo4 solar panel battery pack

  • Date: April , 8th, 2016
  • Location: AUSTRALIA
  • Application: POWER SUPPLY FOR FARM PLACE utility-scale batteries
  • Model No.: ESS500KWH
  • Config.: 1mkWH Lifepo4 battery +500KVA EG Solar HYBRID INVERTER
  • Size: 1000KWH
  • Purpose: SUPPLY FOR 12 HOURS
  • Energy Source: PV SOLAR PANELS AND GRID

EG Solar Design ESS 1000KWH 500kva ALL IN ONE design for commercial solar system

  • Date: March, 22th, 2017
  • Location: South Africa
  • Application: Urban equipment electricity consumption
  • Model No.: ESS500KWH
  • Config.: 1mkWH Lifepo4 battery +500KVA EG Solar HYBRID INVERTER
  • Size: 1000KWH
  • Purpose: SUPPLY FOR 8 HOURS
  • Energy Source: PV SOLAR PANELS AND GRID

EG Solar Design ESS 1000KWH 500kva ALL IN ONE design for commercial solar system

  • Date: March, 15th, 2014
  • Location: USA
  • Application: POWER SUPPLY FOR SUPER MARKET
  • Model No.:ESS5025
  • Config.: 250KWH lithium battery+100KVA EG Solar HYBRID INVERTER
  • Size: 250KWH INDOOR USE
  • Purpose: SUPPLY FOR 8 HOURS
  • Energy Source: PV SOLAR PANELS AND GRID

EG Solar manufacture Design ESS2000KWH 500kva ALL IN ONE design for commercial solar system

  • Date: March, 28th, 2016
  • Location:Jiang Xi china
  • Application: State Grid Corporation of China
  • Model No.:ESS500KWH
  • Config.: 2mkWH Lifepo4 battery +500KVA HYBRID INVERTER
  • Size: 2000KWH
  • Purpose: SUPPLY FOR 12 HOURS
  • Energy Source: PV SOLAR PANELS AND GRID
ess containerized system

EG Solar manufacture Design ESS2000KWH 500kva ALL IN ONE design for commercial solar system

  • Date: May, 18th, 2018
  • Location: AUSTRALIA
  • Application: solar energy
  • Model No.: ESS500KWH
  • Config.: 2mkWH Lifepo4 battery +500KVA HYBRID INVERTER
  • Size: 2000KWH
  • Purpose: SUPPLY FOR 12 HOURS
  • Energy Source: PV SOLAR PANELS AND GRID

EG SolarDesign ESS 360KWH 100kva ALL IN ONE design for commercial solar system

  • Date: March, 19th, 2017
  • Location: USA
  • Application: POWER SUPPLY FOR SUPER MARKET
  • Model No.:ESS2360
  • Config.: 360KWH lithium battery+100KVA HYBRID INVERTER
  • Size: 360KWH INDOOR USE
  • Purpose: SUPPLY FOR 10 HOURS
  • Energy Source: PV SOLAR PANELS AND GRID

EG Solar 4MWH 2000KVA lifepo4 battery FOR SMART GRID

  • Date: Sept., 9th, 2016
  • Location: XINJIANG , CHINA
  • Application: SMART GRID
  • Model No.:ESS-4000KWH
  • Config.: 4000KWH Lifepo4 battery+2000KVA PCS
  • Size: 4*768VDC
  • Purpose: LOAD SHIFTING/DEMAND MANAGEMENT
  • Energy Source: Local GRID NET

EG SolarDesign ESS 600KWH 200kva ALL IN ONE design for commercial solar system

  • Date: March, 28th, 2017
  • Location: USA
  • Application: School power supply
  • Model No.:ESS2360
  • Config.: 600KWH lithium battery+200KVA HYBRID INVERTER
  • Size: 600KWH INDOOR USE
  • Purpose: SUPPLY FOR 12 HOURS
  • Energy Source: PV SOLAR PANELS AND GRID

EG Solar 500KWH 100KVA lifepo4 battery CONTAINER ESS FOR SOLAR STORAGE SYSTEM

  • Date: August., 25th, 2017
  • Location: Gan Su CHINA
  • Application: SOLAR STORAGE OFF GRID
  • Model No.: GSL-ESS-500KWH
  • Config.: 500KWH Lifepo4 battery+150KVA PCS
  • Size: 20FT CONTAINER STANDARD
  • Purpose: OFF GRID SOLAR STORAGE FOR VILLIAGE
  • Energy Source: 150KWH SOLAR PANELS

C&I ESS Commercial & Industrial

EG Solar Energy designs and builds advanced critical energy storage systems (ESS) which are deployed in demand response enabled microgrid solutions for commercial and industrial applications.

Our advanced commercial and industrial energy storage systems allow companies to mitigate economic risk with on-site independent backup power to essential equipment while helping to insulate operating expenses from utility rate increases and fluctuations in power supply.

Our C&I solutions are designed for low or high voltage single, split or 3 phase electrical architecture and easily integrates with a broad selection of high power inverters, power control systems, and energy management systems.

500Wh 2MWh containerization BESSESS

Components of Commercial Energy Storage Systems

  • Battery System: The heart of commercial energy storage, composed of cells that convert chemical energy to electrical energy. Cells are arranged in modules, racks, and strings, connected in series or parallel to achieve the desired voltage and capacity. Lithium-ion is the preferred chemistry.
  • Battery Management System (BMS): Monitors and ensures the safety, longevity, and efficiency of the battery system by regulating voltage, temperature, current, state of charge, and health. It also manages the cooling system and cell balance.
  • Inverter or Power Conversion System (PCS): Converts the battery’s DC output to the AC needed by the grid or load. It regulates voltage, frequency, and power quality and can be configured as AC-coupled or DC-coupled based on system design.
  • Energy Management System (EMS): Manages energy flow according to user needs and preferences, communicating with the grid, load, and other power sources like solar and wind. It handles tasks such as peak shaving, load shifting, frequency control, backup power, and energy arbitrage.

Lithium Ion Batteries

The high efficiency of the energy storage system is guaranteed by the advanced battery technology and the integrated BMS. The lithium battery has a reduced environmental impact combined with excellent performance and safety. The ideal battery bank for the project is defined according to the type of application, storage capacity, charging/discharging capacity, service life, etc. Lithium batteries are used because they provide several advantages in relation to the other topologies used worldwide – among them, high energy density, extended useful life, high charging and discharging capacity, modularity and low maintenance.

The figure below shows the modularity of these batteries; the cells are enclosed in modules and mounted on racks. Each rack has its energy measurement, control and management unit (BMS).

Packed

Packed in wooden case ready for shipping to customers

Commercial outdoor cabinet bess

Outlook of LFP container BESS

  • Designing a Commercial Energy Storage System According to Application Demands

    Designing a commercial energy storage system requires a tailored approach based on specific application demands. Here are the key steps to consider:

    1. Identify the Applications
      • Determine the primary services or functions the energy storage system will provide, such as frequency control, renewable energy integration, backup power, or peak shaving. Some applications may require multiple or hybrid energy storage solutions to meet various objectives.
    2. Define the Performance Metrics
      • Establish critical factors that will determine the system’s success. These may include:
        • Power rating
        • Energy rating
        • Round-trip efficiency
        • Ramp rate
        • Discharge duration
        • Cycle life
      • These metrics will depend on the specific applications and grid conditions.
    3. Technology Selection
      • Choose the most suitable energy storage technologies to meet the performance metrics. Options include:
        • Lithium-ion batteries
        • Lead-acid batteries
        • Pumped hydro storage
        • Compressed air energy storage
        • Redox flow batteries
        • Hydrogen storage
      • Each technology has advantages and disadvantages regarding cost, performance, lifespan, safety, and environmental impact.
    4. Design the System
      • Configure and integrate the energy storage system with other components:
        • Determine the number of modules or units needed.
        • Plan how they will be connected and managed.
        • Define their relationship with the grid and other power sources.
        • Ensure proper supervision and protection mechanisms.
    5. Evaluate the System
      • Test and validate the energy storage system:
        • Measure and verify performance metrics.
        • Assess reliability and durability.
        • Quantify economic and environmental benefits.

    By following these steps, you can design a commercial energy storage system that meets specific application demands and performs efficiently and reliably.

  • Calculating the Cost and Benefit of a Commercial Energy Storage System

    Determining the cost and utility of commercial energy storage systems involves considering numerous factors and variables. Here’s a systematic approach to assessing the economics:

    1. Identify Key Cost Components
      • Capital Cost: Initial investment for purchasing and installing the storage system.
      • Operation and Maintenance Cost: Ongoing expenses for running and maintaining the system.
      • Degradation and Replacement Cost: Costs associated with the gradual loss of storage capacity and eventual replacement of components.
      • Additional Costs: Include financing, taxes, and decommissioning.
    2. Calculate Lifetime Costs
      • Total Lifetime Cost: Sum of all the costs over the system’s lifespan, including capital, operation, maintenance, degradation, and additional costs.
    3. Estimate Lifetime Energy Production
      • Determine the total energy the system will produce over its lifespan, considering its performance, efficiency, usage patterns, and application (e.g., peak shaving, frequency control).
    4. Levelized Cost of Storage (LCOS)
      • LCOS Formula: LCOS=Total Lifetime CostTotal Lifetime Energy Production\text{LCOS} = \frac{\text{Total Lifetime Cost}}{\text{Total Lifetime Energy Production}}
      • This metric represents the average cost per unit of energy produced by the storage system over its lifespan.
    5. Evaluate Revenue Streams and Avoided Costs
      • Identify potential sources of revenue and cost savings:
        • Revenue Streams: Earnings from providing grid services like frequency regulation, capacity market participation, or demand response.
        • Avoided Costs: Savings from increased self-consumption of renewable energy, reduced demand charges, and deferred transmission or distribution upgrades.
    6. Compare LCOS with Revenue and Savings
      • Assess the profitability of the storage system by comparing the LCOS with the combined revenue and avoided costs:
        • If LCOS, the project is likely profitable.
        • This comparison should consider changing market conditions and regulatory environments over time and across different locations.
    7. Account for Uncertainty and Sensitivity
      • Recognize that key parameters, such as market conditions, regulatory policies, and technology performance, can vary.
      • Conduct sensitivity analysis to understand how changes in these parameters might impact the overall cost-benefit analysis.

    By following this approach, you can systematically evaluate the cost and benefit of a commercial energy storage system, ensuring a transparent and comprehensive economic assessment.

Residential BESS

Connecting Commercial Battery Storage Systems with Photovoltaics

Yes, commercial battery storage systems can be connected with photovoltaics (PV) to create a solar-plus-storage system. This configuration allows you to store excess solar energy generated during the day and use it at night or during grid outages. It enhances solar power self-consumption and reliability while reducing demand costs and grid fees.

A solar-plus-storage system can also participate in energy markets, offering grid services like frequency management, voltage support, demand response, and energy arbitrage. This makes it a financially viable and environmentally responsible option for businesses.

Where to Buy Commercial Energy Storage Systems

You can purchase commercial energy storage systems from manufacturers, integrators, or distributors. Another option is to work with an energy-service company that can design and install a customized system tailored to your needs.

EGsolar is a professional company in the industrial and commercial energy storage industry with years of hands-on experience. Their extensive experience has enabled them to accumulate a wealth of knowledge and expertise in the field. They excel at proposing energy solutions tailored to meet specific customer requirements, ensuring the best possible service for their clients.

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