New direction: Modular industrial and commercial energy storage system
2025-01-16
In the opinion of professionals, modular industrial and commercial energy storage systems are more compact in design, and can effectively reduce the number of equipment and floor space, thereby reducing construction, operation and maintenance costs, and are more in line with mainstream market demand.
Today, many companies, including CATL, BYD, Sungrow, Huawei, etc., not only focus on their core businesses, but also develop and produce modular industrial and commercial energy storage systems and release their own technology products.
The modular industrial and commercial energy storage system is more compact in design, which can effectively reduce the number of equipment and floor space, reduce construction, operation and maintenance costs, and better meet the mainstream market demand. In the future, more companies will integrate energy storage batteries, inverters, control systems, energy storage devices and other functions into a modular design to achieve flexible expansion and convenient operation and maintenance, and meet the efficient installation and deployment of project sites.
Development background of modular industrial and commercial energy storage system
Compared with large-scale energy storage, the market size of industrial and commercial energy storage is not large. However, due to cost, policy, safety, operation and maintenance considerations, installation companies often have difficulty in project decision-making and contract signing, which has led to the rapid development of modular industrial and commercial energy storage systems with lower investment costs and more flexible deployment.
What is a modular industrial and commercial energy storage system?
The modular design of a modular industrial and commercial energy storage system refers to decomposing the energy storage system into multiple independent modules, each of which contains a certain energy storage unit, control unit, and connectors.
Such as 125KW modular AC AC energy storage converter, 50KW modular DC DC energy storage converter, STS module, etc. These modules can work alone or be combined and expanded as needed. Its flexibility and scalability can increase or decrease energy storage modules or power modules according to changes in power demand, adapting to energy storage needs of different scales and application scenarios.
The main components and functions of modular commercial and industrial energy storage systems.
1. Energy storage battery PACK
Composed of multiple battery modules, such as (64V 18KWH) to form a larger capacity energy storage system (100kwh 200kwh 300kwh 500kwh, etc.)
2. Bidirectional Energy Storage Converter (PCS)
It is composed of a single 50kw or 125kw ACAC power module to form the energy storage converter power size required by the customer.
For example: 100KW 200KW 500KW, etc.
You can click HT cabinet type ac dc power supply module to view more product information.
3. DCDC photovoltaic inverter module
A single 50kw DCDC photovoltaic inverter module is used to form the photovoltaic inverter power size required by the customer, such as 100KW 300KW 500KW, etc.
Please click HT DC DC POWER SUPPLY MODULE CABINET for more information on modular photovoltaic inverter products.
4. STS on-grid and off-grid automatic switching module
The main function is to automatically switch between on-grid and off-grid, and the switching time should be less than 100ms to prevent sudden power outage of the equipment.
5. Temperature control system, such as industrial air conditioning or liquid cooling unit
Currently, there are two main temperature control methods: air cooling and liquid cooling。
Control the temperature of the energy storage system cabinet and energy storage battery
6. High-voltage control box and BMS
Control and manage battery operating status
7. EMS and local HMI control screen
Control the working status of the entire energy storage system in the set mode, receive information uploaded by BMS, and manage the entire energy storage system in a unified manner. Users can manage locally on the HMI screen or remotely through the cloud platform
8. Fire protection system
Mainly includes fire extinguishers, smoke detectors, etc.
9. Isolation transformer
Electrically isolate the energy storage system from the power grid or other equipment. Protect the safety of equipment and operators.
Advantages of modular commercial and industrial energy storage systems
1.Flexibility and scalability:
The modular design allows the energy storage system to increase or decrease energy storage modules according to changes in power demand, adapting to energy storage needs of different scales.
HT INFINITEPOWER industrial and commercial energy storage cabinet can realize the parallel operation of 3 machines in the automatic switching working mode of on-grid and off-grid, effectively expanding the system capacity. In the single on-grid or off-grid mode, more machines can be connected in parallel.
2.Reduce construction and operation costs:
By reducing the number of equipment and floor space, construction, operation and maintenance costs are reduced
Since a single energy storage cabinet occupies a small area and is light in weight, it can be flexibly arranged according to the customer's installation site, and different equipment can be installed in different locations in the park or factory compared to centralized large-scale energy storage systems.
3.Convenient operation and maintenance:
The modular design makes system maintenance more convenient, and faulty modules can be quickly located and repaired, reducing downtime.
Since each module is independent, fault diagnosis and maintenance become simpler. Only the faulty module needs to be replaced or repaired without shutting down the entire system for maintenance.
Modular design can achieve local isolation. Once a fault occurs, the impact is limited, which is conducive to safe operation.
In addition, the outdoor all-in-one modular energy storage system can be installed quickly, especially the prefabricated modules, which can greatly shorten the on-site installation time.
The main product form of modular industrial and commercial energy storage system is outdoor energy storage cabinet, and the storage capacity of a single energy storage cabinet is generally between 100-500kWh.
Since more than 80% of industrial and commercial energy storage projects are within 5MWh, modular solutions have obvious advantages in flexibility, so energy storage cabinet products have become mainstream in the industrial and commercial energy storage market, and their share has exceeded that of centralized energy storage solutions.
Modular solutions can not only be applied to the industrial and commercial energy storage field, but also have their own unique advantages in the large storage field.
The modular industrial and commercial energy storage system solution achieves more refined control of battery cells, thereby improving the operating efficiency of large-scale energy storage systems by 3%-4%.
At the same time, the modular design also makes subsequent operation and maintenance more convenient, and the system availability rate has increased to more than 90%.
Main application scenarios of modular industrial and commercial energy storage systems
For industrial and commercial users with large fluctuations in electricity load, the configuration of energy storage and comprehensive energy management can effectively reduce the user's electricity costs. During power outages and power restrictions in the public power grid, the energy storage system can also provide continuous power supply to local loads to ensure the normal production and operation of industrial and commercial users.
1.Peak shaving and valley filling + anti-reverse flow + demand control
Automatic charging and discharging according to time-of-use electricity prices
Monitoring of distribution capacity and load
2.Backup power supply + seamless switching
Anti-islanding protection strategy adjustment, optional STS power module
Seamless switching between on-grid and off-grid, UPS-type energy storage, uninterrupted power supply
Seamless switching between on-grid and off-grid, UPS-type energy storage, uninterrupted power supply
In a multi-energy complementary power supply system including photovoltaic, wind power, diesel engine or public power grid, the power balance and stable operation control of the microgrid system can be achieved through the supporting energy storage system.
It is not only suitable for islands, mountainous areas, border outposts and other remote areas or areas with unstable power supply, but also for the energy optimization system of photovoltaic storage and charging in newly built science and technology parks.
3.Off-grid power supply + impact load (such as water pump, central air conditioner)
To meet the needs of microgrid or off-grid operation with impact load
Reserved photovoltaic interface; compatible with diesel engine access.
Reserved photovoltaic interface; compatible with diesel engine access.
4.Zero-carbon building/zero-carbon park/zero-carbon town
Photovoltaic + energy storage, high energy storage ratio capacity
AC and DC dual bus, photovoltaic DC side coupling
AC and DC dual bus, photovoltaic DC side coupling
Future development prospects of modular industrial and commercial energy storage systems
With the rapid development of energy storage technology, modular industrial and commercial energy storage systems have been widely used in the fields of grid regulation, renewable energy grid connection, electric vehicle charging, etc.
Especially in the field of renewable energy, due to intermittency and instability, energy storage systems are required to store and regulate energy, and modular energy storage systems can better meet this demand.
In the future, with the further development of energy storage technology and the further reduction of costs, the application of modular energy storage systems will be more extensive.
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