The distribution network is the "capillary" of the power system. As of 2025, the number of public distribution stations in China has reached about 5.873 million, an increase of 16.8% compared to 2020, with an average annual compound growth rate of 3.1%. With the explosive growth of distributed photovoltaics and the widespread adoption of new energy vehicles, traditional distribution network substations are at a historic turning point. The periodic heavy overload, three-phase imbalance, and terminal voltage exceeding caused by tidal load are becoming the "stubborn diseases" that restrict the high-quality development of the power grid. YUPONT Electric Power (SH.688597)'s holding subsidiary, Yubang Zhiyuan, uses software and hardware collaborative smart energy solutions to "regenerate" every transformer.

Traditional Taiwan areas are facing four core pain points

1. Temporal overload: The use of charging piles during peak hours causes significant fluctuations in power grid load, resulting in temporal overload during peak hours while idle during the day, leading to low asset utilization.

2. Three phase imbalance: Uneven distribution of single-phase loads can easily lead to three-phase imbalance in the substation area. Some substations are prone to overcompensation when the load is small, resulting in low power factor and high line loss.

3. Voltage instability: Uneven distribution of active and reactive power can have a significant impact on the line voltage, and in severe cases, it can lead to transformer voltage exceeding the limit and damage to electrical equipment.

4. Difficulty in expansion: Traditional methods such as upgrading and expanding or building new substations have long implementation cycles, high investment costs, low investment returns, and often only address the symptoms rather than the root cause. The traditional "source following load" model is no longer suitable for the new normal of deep interaction between "source network load storage" today.

The way to break through the deadlock - the "four ounces of a thousand pounds" of energy storage in Taiwan

In response to the above pain points, the National Development and Reform Commission and the Energy Administration have clearly stated in the "Guiding Opinions on Promoting High quality Development of the Power Grid" (NDRC Energy [2025] No. 1710) that it is necessary to accelerate the construction of new distribution systems and support the construction of alternative energy storage for the power grid.

Yubang Zhiyuan provides solutions ranging from "routine treatment" to "high reliability guarantee" for different "lesions" in different areas, helping old areas to rejuvenate digitally.

1. Grid connected governance plan: efficient peak shaving and valley filling to alleviate heavy overload in the substation area

In response to the obvious "tidal load" characteristics of urban residential and commercial areas, energy storage systems can be used to charge during low electricity consumption periods and discharge during high electricity consumption periods, smooth the load curve, and achieve physical capacity expansion without the need for line renovation.

2. Off grid switching solution: "uninterrupted" protection in extreme environments

For areas with weak end power supply or high reliability requirements, the system integrates an automatic switching module. When there is a sudden failure in the higher-level power grid, the system switches to off grid mode in milliseconds, and cooperates with distributed photovoltaics to build a "substation microgrid" to ensure that important loads do not experience power outages.

3. Interconnection Plan for Taiwan Regions: Multi region Collaboration, Energy Flexibility and Mutual Aid

By using flexible direct current (SOP) technology to interconnect adjacent substations and utilizing energy storage as the core of the energy router, precise load allocation in space can be achieved. Overloaded A area, supported by B area, completely solves the problem of uneven resource allocation. This solution breaks through the dimension of a single product and links energy storage products through the Yubang Zhiyuan EMS cloud platform, weaving the "isolated island area" into a "smart energy network", which is the best physical foundation to support virtual power plants (VPPs).

4. Special solution: Three phase imbalance control

The energy storage system in the substation adopts a three-phase four bridge arm PCS topology structure, which can achieve independent three-phase output and meet the 100% demand of three-phase unbalanced load.

The N-line has a separate power module, which has the function of completely controlling single-phase and three-phase active and reactive power separately, perfectly adapting to various off grid, microgrid, single-phase scenarios, and adapting to various loads;

Satisfy 100% three-phase unbalanced load, adding zero sequence current control algorithm can effectively ensure power quality;

Intelligent control of N-phase bridge arm effectively improves charging and discharging efficiency; ·The voltage adaptation range is wider (can operate with a DC voltage of 600Vdc), meeting the requirement of fully charging and discharging the battery.

Hardcore Strength - YUPONT Platform Product Matrix

Rooting in the Land - Typical Scenarios and Project Cases

YUPONT Hebei Tai District Energy Storage Project

The weak grid structure of the local power grid and uneven distribution of single-phase photovoltaic access can easily lead to power quality problems such as three-phase voltage imbalance and high and low voltage exceeding limits in the substation area. YUPONT adopts targeted energy storage solutions in the substation area to accurately manage three-phase imbalances and dynamically smooth out voltage fluctuations across the entire area.

At the same time, it is equipped with YUPONT's self-developed EMS smart energy cloud platform, relying on energy storage terminals, edge communication, cloud applications, and visual front-end to build an integrated control architecture. It integrates industrial interconnection and big data intelligent algorithms to achieve real-time data collection of the entire station, precise three-phase phase control, remote strategy optimization, and coordinated load dispatch of the entire area; It can complete equipment online monitoring, remote control, fault alarm, intelligent operation and maintenance, and battery life cycle management, and is equipped with a mobile interactive entrance. Accurate correction from the source end, intelligent linkage in the cloud, long-term stabilization of voltage balance in the substation area, optimization of three-phase load distribution, and comprehensive improvement of distribution network power supply reliability and on-site consumption efficiency of new energy.

Smart energy, intelligent enjoyment of the future

The butterfly transformation in the platform area is not only the upgrade of electrical physical equipment, but also the deep perception of the downward extension of the energy Internet. At the critical juncture of energy transformation in 2026, Yubang Zhiyuan is transforming the once silent and passive end distribution network into a dynamic and elastic value center through intelligent energy storage bases.Editor/Cheng Liting