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Located in the Miao Gaode Bridge Innovation Park of Xiagai, Nanjing, Nanjing Hezhi Electric Power Technology Co., Ltd. is a place bustling with activity.
In one corner of the laboratory, rows of high-voltage direct-connected energy storage control and protection equipment are undergoing final factory tests; on the production line, technicians are assembling and testing the high-voltage switch intelligent control modules that will be installed on site. Their eyes are fixed on the control screens, ensuring that every step is flawless.
“Since the beginning of this year, the pace has picked up. I have made several trips on business,” said Dr. Feng Yadong, the chairman of Nanjing Hezhi Electric Power Technology Co., Ltd., as he stood beside the production line, his voice full of energy.
This enthusiasm stems from an impressive performance report: As of now, the enterprise has received a total of 130 million yuan in orders. The contract amount in the first two months of this year has increased by more than 50% compared to the same period last year, achieving a “good start” in the first quarter.
This year’s goal is to double it: from 100 million to 200 million.
In 2025, the contract amount of Huizhi Power reached 100 million yuan for the first time. This year, the target has been doubled directly: the annual contract amount target is 170 million to 200 million yuan. This ambitious goal stems from the strong growth of its two core business segments.
One aspect is the intelligentization of high-voltage switches. Huizhi Electric has equipped traditional high-voltage switches with an “intelligent brain” to achieve intelligent control and online monitoring and analysis. In 2021, this technology was appraised by an expert committee led by Academician Li Lijiang as “globally leading overall”, and it has now been applied in over 30 substations across the country. It is regarded as the leader in this field by the State Grid and the Southern Grid.
The other aspect is the new energy storage solution. Leveraging years of technical experience in direct current transmission, Huizhi Electric innovatively introduced the “Pack to Grid” cascaded multilevel energy storage architecture, achieving precise energy management at the battery pack level, with energy conversion efficiency improving by 3 to 5 percentage points compared to traditional solutions, and battery utilization rate increasing by more than 6 percentage points.
This system has not only been piloted in multiple locations across the country but will also support the national key research and development program, being applied to Antarctic research stations – to build a green energy system for the Antarctic research stations, adapt to the -50℃ low-temperature environment, support long-term unmanned operation, and possess “black start” capabilities. “This year, the energy storage sector aims to achieve revenue of 70 to 100 million yuan,” said Dr. Feng.
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“Last year in the second half of the year, we felt that the production space in the current factory was insufficient,” Dr. Feng smiled and introduced.
The current production area can produce approximately 4,000 devices and 4,000 intelligent switch modules per year. However, once the energy storage market opens up, the demand will grow exponentially – as district energy storage equipment develops, the annual production demand for power modules will reach tens of thousands.
Expansion is urgent! With the coordination of Qixia District and Mai Gaobiao Sub-district, Hezhi Power has obtained a four-story building opposite the current factory, with a total area of about 5,600 square meters. It is currently under renovation and is expected to be put into use in May this year.
“This building was originally an old factory. We need to re-plan and coordinate with water and electricity units when we move in. Mai Gaobiao Sub-district is very forward-thinking and actively helps us coordinate and solve various problems, reserving valuable space for our rapid development,” Feng Yadong disclosed. “When the new factory reaches full production capacity, it will basically be able to meet our production capacity of 5 to 800 million yuan, providing a solid guarantee for the rapid growth of the enterprise.”
The “talent-friendly” environment of “Jinshuilou Terrace” has a 1/3 proportion of R&D personnel.
Behind the rapid growth is the continuous investment in talents. The R&D team of Hezhi Electricity accounts for one-third of the total number of employees, and a large number of talents come from local universities.
“Choosing to develop in Qixia, Nanjing, an important factor is the abundance of universities and talents. Here, many young people graduated from Nanjing University, East China University of Science and Technology, Nanjing University of Aeronautics and Astronautics, and Nanjing University of Technology have been attracted,” said Dr. Feng.
Thanks to its strong R&D capabilities, the company has cumulatively obtained over 50 patents and 24 software copyrights. It has been successively rated as a national high-tech enterprise, a Jiangsu Province’s fast-growth enterprise, and a national specialized, refined, distinctive and innovative “small giant” enterprise, and has become a supporting unit for key national research and development projects.
When asked about his confidence for the future, Feng Yadong spoke with certainty: “Our confidence in development is very strong.”
This confidence stems from technological accumulation – over 20 years of experience in the research, manufacturing and application of high-end power equipment; from market validation – from hundreds of intelligent substations to Antarctic research stations; and from a clear development plan – focusing on the intelligentization of power equipment and new energy storage for innovation, to occupy the technological high ground. This year, we aim to reach 200 million, and in the next two years, our target is 300 million to 500 million. Ultimately, we strive to achieve the goal of going public.
“Since the Two Sessions just concluded, new energy storage has become one of the six emerging pillar industries that the country is focusing on developing, and it is a trillion-dollar market,” said Dr. Feng. “Our development goals align with the national development strategy, and there will be very large development space and opportunities.”
Outside the window, the new factory is in the process of being renovated. After it goes into production in May, it will produce more core equipment that “puts an intelligent brain in the power grid”, contributing more “Nanjing-made” power to the construction of the new power system.
