The electrochemical energy storage system is mainly composed of batteries, energy storage inverters (PCS), energy management systems (EMS), battery management system (BMS) and other electrical equipment. The cost of energy storage inverters accounts for 10%-20%, second only to batteries (60%).
Power Conversion System, referred to as PCS, in the electrochemical energy storage system, is a device connected between the battery system and the grid (and/or load) to realize bidirectional conversion of electric energy, which can control the charging and discharging process of the battery, and perform AC and DC It can directly supply power to AC loads without grid.
PCS consists of DC/AC bidirectional inverter, control unit, etc. The PCS controller receives background control commands through communication, controls the inverter to charge or discharge the battery according to the sign and size of the power command, and realizes the adjustment of the active power and reactive power of the grid.
At the same time, the PCS can communicate with the BMS through the CAN interface and dry contact transmission to obtain the status information of the battery pack, which can realize the protective charging and discharging of the battery and ensure the safe operation of the battery. According to relevant statistics, the latest top 10 energy storage PCS companies in China are ranked as follows.
Latest top 10 energy storage PCS companies in China
|Total market value||139.6 billion RMB|
Sungrow focuses on the R&D, production, sales and service of solar energy, wind energy, energy storage, hydrogen energy, electric vehicles and other new energy power supply equipment. It is the world's most experienced supplier of energy storage equipment and system solutions.
The main products are photovoltaic inverters, wind power converters, energy storage systems, water surface photovoltaic systems, new energy vehicle drive systems, charging equipment, renewable energy hydrogen production systems, smart and energy services are ed. world-class services. It is one of the latest top 10 energy storage PCS companies in China.
Sungrow household storage has begun to be supplied in batches, with 15,000 sets of shipments in 2022H1, and the shipment of integrated energy storage systems has ranked first in the world for six consecutive years. It is estimated that the shipment of energy storage systems in Q3 will reach 1.5GWh, and it is expected to reach 6GWh in the whole year, doubling the year-on-year growth.
② Kehua Shuneng
|Registered capital||200 million RMB|
Kehua Shuneng's new energy business focuses on energy storage, and uses technology to achieve a high degree of integration of solar and storage and application innovation. Its main products include photovoltaic inverters, photovoltaic off-grid controllers, energy storage converters, off-grid inverters and other products, as well as corresponding photovoltaic power generation/energy storage system solution services.
The cumulative installed capacity of Kehua Shuneng has exceeded 2.6GW/3.8GWh. It is the leading energy storage company in China. It is one of the latest top 10 energy storage PCS companies in China.
The iStoragE series integrated household energy storage system launched by Kehua Shuneng has signed contracts for more than 20,000 sets, totaling 390MWh.
|Total market value||51.95 million RMB|
Growatt was established in Shenzhen, Xi'an and Huizhou successfully. Relying on the R&D platform and a professional R&D team of more than 500 people, it provides professional distributed energy solutions for users in different countries and regions. Growatt is one of the latest energy top 10 storage PCS companies in China.
Growatt has launched a series of industrial and commercial inverters for industrial and commercial photovoltaic development. Its MID, MAC, and MAX series of industrial and commercial photovoltaic inverters cover the power range of 50kw-253kw.
|Total market value||12.279 billion RMB|
Sineng's main business is in the field of power electronics power conversion and control. Its main products include photovoltaic grid-connected inverters, energy storage bidirectional converters (PCS), active filters, low-voltage reactive power compensators, intelligent power quality correction devices, etc., and provide integration of photovoltaic power generation systems and energy storage systems business.
The company's products have a wide range of application scenarios, and its business covers Asia Pacific, Middle East, South America, Europe and other markets. Sineng is one of the latest top 10 energy storage PCS companies in China.
In 2022Q3, Sineng’s energy storage system integration business accounted for more than 40% of its revenue, corresponding to a revenue of more than 258 million RMB. Considering that the company’s overall energy storage business revenue in the first half of the year was only 38 million RMB, the company’s energy storage business increased significantly month-on-month.
|Total market value||9.773 billion RMB|
Sinexcel is the world's leading provider of energy Internet core power equipment and solutions. Based on power electronic conversion and control technology, the company develops products for different applications. At present, it has formed four major business segments: new energy power conversion equipment (energy storage business), electric vehicle charging pile, battery formation and testing equipment, and industrial supporting power supply.
The company's energy storage products include 30-1000kw energy storage converters (PCS), energy storage semi-integrated systems, and optical-storage integrated machines. It is one of the latest top 10 energy storage PCS companies in China.
Sinexcel's new energy power conversion equipment business achieved operating income of 81 million RMB, a slight decrease of 4.04% year-on-year.
|Registered capital||1.2 billion RMB|
NR is mainly engaged in the research and development and industrialization of power protection control and intelligent power equipment for power grids, power plants and various industrial and mining enterprises. It has a complete set of self-developed energy core equipment such as energy management system (EMS), energy storage coordinated control system (PMS), energy storage conversion system (PCS) and battery management system (BMS).
Its energy storage system has been widely used on the grid side, new energy side, user side, and microgrid side. NR's industrial direction has successfully expanded from power grid control and protection to intelligent power equipment, industrial process control, etc., and completed the development of complete sets of flexible DC transmission equipment, high-voltage DC circuit breakers, UHV DC converter valves, and unified power flow control systems (UPFC). It is one of the latest top 10 energy storage PCS companies in China.
The 4MW/20MWh electrochemical energy storage project of Basu Photovoltaic Power Station of Tibet Development and Investment Group undertaken by NR in the form of EPC was successfully connected to the grid. This project is the first energy storage project successfully connected to the grid for power generation among the 46 projects in China's Tibet's stock photovoltaic additional energy storage projects in 2022.
|Total market value||179.4 billion RMB|
Inovance's energy storage PCS and energy management system solutions can realize multi-scenario implementation for energy storage customers. Inovance provides industrial customers with standard industrial automation products such as inverters, servo drives and servo motors, PLCs, and touch screens (HMI).
The company's integrated products of motor and electronic control, parts account for about 12% of the total cost of the vehicle, and the market space is second only to power batteries. It is one of the latest top 10 energy storage PCS companies in China.
Inovance not only provides PCS for electrochemical energy storage systems, but also provides core components for flywheel energy storage systems, and is also involved in the manufacture of lithium batteries.
|Registered capital||42.737633 million RMB|
Soaring has been focusing on the new energy industry for 20 years, focusing on clean energy and energy-saving technologies, and has formed two major businesses: large-scale energy storage and high-end battery testing.
The main innovative products include energy storage bidirectional converters (PCS), integrated energy storage electric Integrated cabin, energy management system (EMS), integrated storage, charge and inspection system, high-performance charge and discharge test system for power battery and energy storage battery performance test, automatic test system, etc.
The shipment of Soaring energy storage PCS ranks firmly in the TOP3 of China's new installed capacity in 2021 and the TOP10 of the world's shipment. In the field of large-scale energy storage, Soying Electric has completed more than 200 projects and delivered more than 800MW of large-scale energy storage. It is one of the latest top 10 energy storage PCS companies in China.
Soaring launched a dedicated test system for 1500V energy storage batteries. This system breaks through the voltage limitation of traditional test equipment, and can be used for charge and discharge tests of 1500V voltage level energy storage batteries, and the voltage range covers 100V~1500V.
|Total market value||27.025 billion RMB|
Kstar is a leader in China's uninterruptible power supply industry and an industry-leading provider of integrated solutions for safe power usage environments. The company has laid out the field of new energy photovoltaic and energy storage products.
The existing products mainly include: centralized photovoltaic inverter, string photovoltaic inverters, intelligent combiner boxes, anti-reflux boxes, DC power distribution cabinets, solar deep-cycle batteries, monitoring and household inverters, household energy storage, modular energy storage converters, centralized energy storage converters, integrating inverter and boost integrated system, etc. It is one of the latest top 10 energy storage PCS companies in China.
Kstar signed a 1.461 billion RMB purchase order for energy storage products.
|Total market value||61.435 billion RMB|
Based on the new energy industry, Ginlong is a high-tech enterprise specializing in the research and development, production, sales and service of string inverters for the core equipment of photovoltaic power station.
The company's R&D team has more than 10 years of technical R&D experience and engineering design experience in the inverter field, and is also one of the important frames and participants of photovoltaic string inverter industry standards.
As a single champion demonstration enterprise in China, Jinlog has a number of Chinese authorized patents and pioneering technologies. The products of Ginlong sell well in many countries and regions around the world. It is one of the latest top 10 energy storage PCS companies in China.
Ginlong expects to ship 1.1 million grid-connected inverters in 2022, a year-on-year increase of 60%+. The shipment of energy storage inverters exceeded 300,000 units, an increase of 9-10 times. The production capacity will reach 1.2 million units by the end of 2022.