When photovoltaic systems generate electricity, which load should use it first?
When should energy storage systems charge, and when should they discharge?
When the utility grid, diesel generators, and AC and DC loads operate together, how can the system remain stable?
As photovoltaics, energy storage, DC distribution, and flexible loads become increasingly integrated, the key challenge is no longer simply whether electricity is available, but how intelligently the entire energy system can coordinate and dispatch it.
From July 10 to 12, the 4th China Photovoltaics, Energy Storage, Direct Current and Flexibility Conference was held in Shanghai, bringing together industry professionals to explore technological frontiers, industrial applications, and ecosystem development.
Hangzhou BOCO Electronics Co., Ltd. showcased its PEDF system solution, integrated PV-storage-diesel-load system solution, high-efficiency HVDC power supply solution for AI computing centers, and a range of core PV-storage-charging products.
The exhibits included the integrated PV-storage-diesel-load electrical cabinet, 130 kW power conversion system, Gemini Series bidirectional DC-DC converters, 200 kW MPPT Comet 200S, and AC-DC modules. Together, these products cover key stages including photovoltaic integration, energy-storage charging and discharging, AC/DC conversion, DC power distribution, and system integration.
BOCO Electronics also exchanged insights with industry experts, customers, and partners on applications including industrial park microgrids, data centers, commercial and industrial energy storage, and DC power distribution.
During the event, Shen Guoqiao, CTO of BOCO Electronics, was invited to speak at the Rural PEDF Technology and Applications Forum. In his presentation, “Key Considerations for AC/DC Coordination in PEDF Systems,” he provided an in-depth analysis of critical technologies including grid-forming PCS, virtual synchronous generator control, AC/DC coordination, and common-mode voltage suppression.
Addressing challenges such as stable operation under weak-grid conditions, DC bus voltage regulation risks caused by fully charged or fully discharged batteries, and common-mode voltage issues in IT and TN power distribution systems, BOCO Electronics proposed solutions including seamless switching between grid-forming and grid-following modes, coordinated PV-storage energy management systems, integrated source-grid-load-storage control, and topology optimization.
Combined with practical solutions such as 800 V HVDC and modular DC-DC converters, these technologies can improve system stability, power supply continuity, and renewable energy utilization, providing efficient and reliable power conversion support for industrial park microgrids, data centers, and PEDF applications.
Making Green Electricity Flow More Efficiently
The value of PEDF systems lies not simply in combining photovoltaics and energy storage, but in enabling green electricity to flow more efficiently and flexibly among buildings, industrial parks, and electrical loads.
BOCO Electronics’ PEDF system solution adopts a 750 V/±375 V high-voltage DC bus architecture. Acting as a centralized power hub, the system integrates the utility grid, photovoltaics, energy storage, and multiple types of loads, reducing multistage conversion processes and minimizing power losses along the supply chain. Overall power supply efficiency can reach up to 99%.
The solution also features full-chain intelligent monitoring and energy-efficiency dispatch functions. Its modular and redundant design supports hot-swappable maintenance, helping ensure stable 24/7 operation. It is suitable for a wide range of green and low-carbon energy applications, including industrial parks, EV charging stations, and data centers.
The Dispatching Hub for Complex Energy Systems
In industrial parks, commercial and industrial buildings, and data centers, photovoltaic generation fluctuates, load demand peaks, energy storage systems must charge and discharge, and the utility grid and diesel generators must remain coordinated at all times.
BOCO Electronics’ integrated PV-storage-diesel-load system solution combines three core units: MPPT, PCS, and STS. It supports multiple energy sources, including the utility grid, photovoltaics, energy storage, and diesel generators, while supplying both AC and DC loads.
The solution is available in 130 kW, 260 kW, and 520 kW configurations and can be expanded through parallel operation to capacities exceeding 1 MW. Maximum photovoltaic charging efficiency reaches 99.5%, while maximum battery discharge efficiency reaches 98.7%.
The system supports prioritized photovoltaic consumption, flexible energy-storage regulation, and rapid switching among multiple power sources. Its integrated design simplifies deployment and makes it suitable for both grid-connected and off-grid applications, including industrial parks, EV charging stations, and commercial and industrial microgrids.
A More Direct Power Path to the Server Side
As demand for AI computing continues to grow, power supply pressure within data centers is also increasing.
In response, BOCO Electronics has developed a high-efficiency HVDC power supply solution for AI computing centers. By optimizing the power supply path through a high-voltage DC architecture, the solution reduces unnecessary intermediate conversion stages and delivers electricity more directly to the server side.
Combined with core components such as DC-DC converters, the solution provides both highly efficient power delivery and short-duration backup support. Peak system efficiency can exceed 99%, while overall energy efficiency can be improved by up to 15%.
The solution provides efficient and stable power support for AI data centers, cloud computing centers, and high-density server facilities.
Bringing green electricity into a system is only the beginning. The greater objective is to shorten its conversion path, improve system coordination, and maximize the value of every kilowatt-hour.
Looking ahead, BOCO Electronics will continue to focus on high-performance power conversion technologies and key applications in computing and energy storage. Through continued innovation in high-efficiency, highly reliable, and modular products and system solutions, the company is committed to helping customers build safer, more efficient, and lower-carbon energy systems.
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