The 200MW/400MWh energy storage project in East China, where Kehua provides PCS energy storage solutions, has been connected to the grid. The project is located in Shandong Province, and is the largest energy storage project in the region. The program can store 400,000 kWh of electricity on a single charge, which is equivalent to a day's electricity consumption of 60,000 households.

Project Overview

• ·  Capacity: 200MW/400MWh
• ·  Solution: Kehua 3.38MW PCS, MV transformer and EMS integrated solution
• · Location: Jiaodong City, Shandong Province, CN

As a new energy storage demonstration project in Shandong Province, the customer has higher requirements for the safety, reliability, cost reduction and efficiency of the energy storage plant. After a rigorous selection, Kehua's energy storage system integration solution was ultimately selected. The solution includes 53 sets of energy storage MV skid, 105 sets of energy storage battery systems, and 1 set of an energy management system. Currently, the project has achieved grid-connected power generation with excellent parameters and indicators.

Each energy storage unit supplied by Kehua consists of a 3.38MW energy storage skid solution with energy storage converters and transformers, and a 6.77MWh battery integration system. Kehua energy storage skid adopts a 1500V system integration design, featuring standardized design, easy installation, high system efficiency, small footprint, easy commissioning and maintenance, which brings a lower LCOS cost and effectively improves the customer's economic benefits.

Furthermore, Kehua's PCS adopts a brand-new three-level topology technology, with a maximum efficiency of 99.03%; it also features an intelligent forced air cooling design, allowing full-load operation without derating even in 50°C ambient temperature conditions. The key components are designed with IP65 protection and C5 anti-corrosion grade, which can reliably withstand the complex environment in coastal areas, fully ensuring the stable and reliable operation of the power station and helping customers increase their value and revenue.

The reliability does not stop there. Kehua has also achieved comprehensive safety control in the battery compartment of the energy storage system. Starting from the battery cells, Kehua has implemented fire protection design from the pack level to the system level, providing multi-dimensional safety protection and further enhancing the system's overall safety.

The project can not only effectively solve the problem of wasted solar & wind power in new energy field stations, but also be included in the unified dispatch management of Shandong Power Grid, participating in the province's power auxiliary, grid peaking, energy storage capacity leasing and other services, and contributing to the transformation the region's energy structure to green and low-carbon.

At present, Kehua's 1500V energy storage technology has been widely used around the world due to its technical advantages of high safety, high reliability and significant cost reduction and efficiency. In the future, Kehua will continue to provide more diversified green energy solutions through technological innovation, and contribute to the transformation and upgrading of the global energy structure with actions.

About Kehua

Based on 36 years of experience in power electronic technology, Kehua has diversified solutions and rich project experience in the fields of photovoltaic, energy storage, micro-grids and integrated energy services. By the end of 2023, Kehua’s PV installation has exceeded 46GW and its energy storage installation has exceeded 15.2GW/8.2GWh globally. Presently, Kehua has become the world's fourth largest PCS supplier (S&P Global), a Tier 1 energy storage supplier and Top 10 solar inverter manufacturers (BloombergNEF). Going forward, Kehua will continue to be a reliable PV and ESS expert, create clean energy, and dedicated to enabling a zero-carbon lifestyle for people worldwide.