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2025-04-08

Vilion Shines at Solar&Storage Live London — Accelerating Expansion in the European Market

On April 2-3, 2025, Vilion participated in the Solar&Storage Live London exhibition held at the ExCeL London International Exhibition Centre. The event attracted over 500 exhibitors and 20,000 professional visitors from the global clean energy sector, making it a key event in the clean energy industry. Vilion showcased its full product range and successful local case studies, demonstrating the company's technological advantages and market service capabilities in the UK and other European regions.

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2025-03-24

Service Documentary of Vilion’s Highway Energy Storage Project in Sichuan

Recently, Vilion’s after-sales service team successfully completed the on-site installation and commissioning of four EnerArk Integrated Outdoor Battery Energy Storage Cabinets at highway service areas and toll stations in Sichuan Province, China. With their professional and efficient service, our engineers ensured the stable operation of the equipment, supporting peak-load shifting for power optimization.

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2025-01-18

Vilion Participates Again in the UK Solar Energy Storage Project Development and Installation Training Event

On January 15th, Vilion was once again invited to participate in the latest session of the Solar "Battery Installation Training & Accreditation Day" held at the DoubleTree by Hilton Elstree in London, UK. Mr. Donglei Fu, Sales Director of Vilion's Dutch subsidiary, and Mr. Dee Zhang, Product Development Director, showcased the company’s latest energy storage product series, technical solutions, and successful service cases across various European countries. They also highlighted the installation advantages of the EnerCube series containerized battery energy storage system and the EnerArk series integrated outdoor battery energy storage cabinets, which have generated significant interest among installers.

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2025-01-03

Energy Storage Knowledge Class | Analysis of the Efficiency of C&I Energy Storage Systems

In the industrial and commercial sectors, energy storage systems are playing an increasingly crucial role, and system efficiency is one of the core indicators used to measure their performance. For companies that profit by arbitraging peak-valley price differences, the efficiency of the energy storage system directly impacts their economic benefits and return on investment (ROI).

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2024-12-09

Energy Storage Knowledge Class | Synergistic Development of Photovoltaics and Energy Storage: Analysis of AC and DC Coupling Solutions and Application

The role of energy storage systems in addressing the intermittency and instability of photovoltaic (PV) power generation, as well as in improving energy utilization efficiency and reliability, has gained global consensus. With the growing global demand for renewable energy, technological advancements, and decreasing costs, the photovoltaics and energy storage (PV+Storage) industry is also experiencing unprecedented development opportunities. A PV+Storage System typically includes solar panels, controllers, inverters, batteries, and loads. There are currently two main technological routes on the market: DC coupling and AC coupling. DC coupling refers to the connection of the energy storage battery and the photovoltaic modules on the DC side of an integrated PV+Storage system, where the energy gathering point is on the DC side. AC coupling, on the other hand, involves the connection of the energy storage system and photovoltaic system on the AC side, where the energy storage system (battery, energy storage inverter PCS) and photovoltaic system (solar modules, PV inverter) work independently, with the energy gathering point on the AC side (the diagram below shows schematic diagrams of DC coupling and AC coupling systems). Currently, both DC coupling and AC coupling solutions have been widely applied in PV+Storage Systems, each with its advantages and disadvantages. From the customer's application perspective, the choice of coupling solution can be made based on the following analysis: New Energy Storage Installations If a user has already installed a photovoltaic system and needs to add an energy storage system, the optimal choice is: AC coupling solution. New PV+Storage System Installations In terms of the distinction between DC coupling and AC coupling, the main differences are as follows: Off-grid systems, especially in remote areas or microgrid applications with backup power, allow for PV, energy storage, and inverters to be designed according to the user's load capacity and energy consumption. DC coupling is more suitable for these systems, as the system control logic is simple and clear. Larger PV+Storage Systems, such as those over 1MW, typically have more MPPTs, higher costs, and more complex installations. These systems tend to lean toward the use of AC coupling. In conclusion, both AC coupling and DC coupling PV+ES systems have their own advantages and disadvantages at the application level. The appropriate coupling solution should be selected based on specific application scenarios, cost considerations, and system efficiency and energy management requirements. Vilion provides specialized and customized PV+Storage System solutions. We offer a range of energy storage products that meet the needs of both AC and DC coupling applications for PV systems. These products have been widely adopted and highly praised in the markets of adding energy storage to existing PV systems and newly installed PV+Storage Systems. In the future, Vilion will continue to focus on promoting the high-quality collaborative use and development of photovoltaic and energy storage systems, contributing to the creation of greener, more flexible, and efficient energy systems.

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2024-12-03

Vilion Showcases EnerArk Installation Advantages at UK Solar Battery Installation Training

On November 28th, a Solar Battery Installation Training & Accreditation Day was held in Newcastle, UK, where industry professionals gathered for an in-depth training on energy storage systems. Mr. Donglei Fu, the GM of Vilion Tech B. V., was invited to attend and present at the event. During his presentation, Fu first introduced Vilion’s comprehensive energy storage product series, technological advantages, and battery storage cases across Europe. He then focused on explaining the performance features and installation benefits of the EnerArk integrated outdoor battery energy storage cabinet. Fu emphasized that Vilion’s energy storage cabinets feature an All-in-One design and the unique AiP (Active in Parallel) Cluster-Level Balancing technology. The product boasts 5 layers of safety protection, 6 major testing modules, and over 70 safety design features. It supports diverse applications, including photovoltaic DC/AC coupling, off-grid and on-grid switching outputs, and parallel multi-unit configurations, covering scenarios such as energy trading, peak-shaving, capacity expansion, and frequency regulation and ancillary services. Paired with the company’s proprietary full-stack EMS (Energy Management System), the EnerArk units integrate seamlessly with BMS (Battery Management Systems) and PCS (Power Conversion Systems), enabling data upload to Vilion’s cloud-based storage management platform. The platform performs big data analytics, forecasting, and decision-making, optimizing control strategies for enhanced system performance and economic efficiency. Fu pointed out that EnerArk is highly tailored to the storage needs of European customers, and his detailed explanation of its structure and functionality provided attendees with a clear understanding of its advantages. For the attending solar projects installation contractors, Fu also conducted a detailed training session on-site installation procedures. This covered from basic installation preparations, such as site requirements and tool kits, to specific installation steps, including securing the cabinet and connecting the wiring. He highlighted the efficiency of the EnerArk storage unit’s integrated design, ensuring that the product can be fully installed within just two hours from unboxing to final setup. This training event further strengthened communication between Vilion and its European target customers, laying a solid foundation for the wider promotion and application of the EnerArk integrated outdoor battery storage series products across various sectors. Vilion is poised to continue contributing to the development of renewable energy and the decarbonization efforts in Europe, leveraging its product performance, ease of installation, and diverse application scenarios.

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2024-11-29

Safety First, Responsibility Always—Vilon New Employee Safety Training

To strengthen employees' safety awareness and ensure the smooth progress of the company's operations, Vilion held a new employee safety training session as scheduled on November 25th. The training was led by Mr. Wang, Deputy Director of the Operations Center and Plant Manager of the Intelligent Manufacturing Factory. At the beginning of the training, Mr. Wang provided a detailed introduction to the company's internal safety regulations and clarified the safety requirements that new employees should follow in their daily work. From electrical safety in office areas to operational standards in production workshops, each regulation is based on the company's past experience and industry standards and is rigorously enforced to ensure employees work in a safe and orderly environment. To strengthen employees' safety awareness and ensure the smooth progress of the company's operations, Vilion held a new employee safety training session as scheduled on November 25th. The training was led by Mr. Wang, Deputy Director of the Operations Center and Plant Manager of the Intelligent Manufacturing Factory. At the beginning of the training, Mr. Wang provided a detailed introduction to the company's internal safety regulations and clarified the safety requirements that new employees should follow in their daily work. From electrical safety in office areas to operational standards in production workshops, each regulation is based on the company's past experience and industry standards and is rigorously enforced to ensure employees work in a safe and orderly environment. Next, the training focused on safety knowledge related to the energy storage business, including the characteristics of energy storage batteries, as well as proper storage, handling, and maintenance methods. Mr. Wang also emphasized the importance of strictly following installation procedures when working with electrical equipment to avoid accidents such as battery short circuits or electrical fires caused by improper operations. Throughout the training, Mr. Wang used numerous real-world case studies to illustrate the serious consequences of safety incidents. The cases of fires and explosions caused by negligence or improper operations served as a powerful warning, reminding new employees that safety awareness must be maintained at all times, and any lapse in vigilance could lead to irreparable consequences. Through this training, new employees gained a comprehensive understanding of the company's safety regulations and developed a deeper recognition of the importance of safety. Vilion will continue to enhance safety management, ensuring that every employee can perform to their full potential in a safe working environment and contribute to the steady development of the company.

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2024-11-20

Energy Storage Knowledge Class | Exploring the Application of PCC Auto On-off Grid Switching Cabinet

The power connection control auto on-off grid switching cabinet (abbreviated PCC switching cabinet) is an electrical device capable of automatically switching between grid-connected and off-grid states, that is primarily used in energy storage systems, emergency power supply systems, and other scenarios. The following is a detailed introduction to the PCC switching cabinet: 1、Working Principle -Grid-Connected State: Under normal conditions, when the grid power supply is stable and meets the load requirements, the PCC switching cabinet connects the load circuit to the grid, allowing the loads to draw power from it. During this time, the energy storage system (if present) may operate in a charging state, storing electrical energy from the grid. -Off-Grid State: In the event of grid failure, power outage, or substandard power quality, the PCC switching cabinet quickly detects these anomalies and automatically disconnects the loads circuit from the grid, switching it to a backup power source or energy storage system. This ensures uninterrupted and reliable power supply for critical loads even when the grid is unavailable. 2、Main Components: -Switching Devices: Devices such as circuit breakers, cocontactors, and relays control the circuit's connection and disconnection. These devices must feature fast switching and reliable operation to ensure accurate and timely transitions during on-grid to off-grid switching. -Monitoring and Control Module: Includes components like collectors and controllers. Collectors monitor parameters such as grid voltage, frequency, and phase in real time, as well as load conditions. The controller analyzes this information to determine if a switch between grid-connected and off-grid states is necessary, then controls the switching devices. -Protection Devices: Such as over-current protection, over-voltage protection, and under-voltage protection, which safeguard the load and the transfer cabinet itself in case of circuit abnormalities. 3、Application Scenarios: -Energy Storage Systems: In battery storage power stations and similar energy storage systems, the PCC switching cabinet manages the connection and disconnection between the energy storage system and the grid. During off-peak periods, the grid charges the storage system. During peak periods or grid failures, the storage system supplies power to the load via the PCC switching cabinet, achieving peak load shaving, enhancing power quality, and ensuring reliability. -Emergency Power Supply Systems: Locations with high power reliability requirements, such as hospitals, banks, and data centers, are often equipped with emergency power sources and automatic PCC switching cabinet. When the utility grid fails, the PCC switching cabinet switches to the emergency power source automatically, ensuring normal operation of critical equipment. -Distributed Energy Systems: In systems with distributed energy sources such as solar and wind power, the PCC switching cabinet can automatically switch to the appropriate power supply mode based on energy availability and load demand. This enables efficient energy utilization and ensures stable system operation. Vilion's independently designed PCC auto on-off grid switching cabinets offer a power range from 75 kVA to 375 kVA, featuring millisecond-level rapid response capability to provide users with a seamless power transition experience. With an IP54 waterproof and dustproof rating, these cabinets are suitable for outdoor use. In addition, the PCC switching cabinets boast the following features: 1、Performance：It provides high-precision energy metering, enabling accurate tracking of energy data during the charging and discharging processes of the energy storage system. 2、Connection Stability: With advanced connection technology and high-quality electrical components, the PCC switching cabinets ensure a robust and reliable link between the energy storage system and the grid at the point of common coupling. This design effectively resists external interference, enhancing overall system reliability. 3、Safety: Equipped with comprehensive safety protection mechanisms, it includes over-voltage, under-voltage, over-frequency, under-frequency, over-temperature, emergency stop, and output overload self-protection functions on the grid side. This ensures the safe operation of the energy storage system when connected to the grid, giving commercial and industrial users peace of mind without concerns about safety risks caused by electrical faults. 4、Integrated Isolation Transformer：It offers numerous advantages: Electrical Safety: It provides electrical isolation, preventing the risk of electric shock from direct contact with the power source. This is crucial for the safety of operation and maintenance personnel. Reduced Ground Current: Electrical isolation reduces issues caused by poor grounding, enhancing system stability and safety. Common-Mode Interference Suppression: The isolation transformer

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2024-11-12

Bulgaria and Romania grant Recovery and Resilience funding to gigawatts of energy storage

Bulgaria supports 3.1GW of renewables and 1.1GW of storage The Ministry of Energy revealed the results last week (2 November) for the EU-backed tender, which opened in August and will provide financial support to over 300 renewable and energy storage projects, covering up to 50% of construction costs. The first call for projects was for those between 200kW to 2MW in size, either renewable generation or energy storage. Some 200 projects won a total of BGN107 million (US$60 million) in that call, adding up to 435MW of renewables and 176MW of energy storage. The second call was for those over 200kW with no upper limit. In that call, 2,660MW of renewable projects won funding while 1,000MW of energy storage projects were successful, spread across 65 projects winning a total of 427.5 million (US$238 million). All in all, 3,095MW of renewables projects and 1,176MW of energy storage projects won in the tender. Projects will need to be operational by 31 March, 2026. The funding comes from Bulgaria’s portion of the EU-wide Recovery and Resilience facility, the bloc’s scheme to help countries mitigate the negative economic effects of the Covid-19 pandemic. The facility has also supported energy storage deployments in Romania, Finland and Greece, while the separate Temporary Crisis and Transition Framework (‘TCTF’) has supported projects in Poland, Hungary and Slovenia. Just a few days after the Bulgarian ministry’s announcement, Romania revealed the results of one of its support schemes. Romania provides grants to 1.5GWh of storage projects and solar PV facilities Also using the Recovery and Resilience facility, the Ministry of Energy of Romania has awarded grants to a handful of energy storage projects. Minister of Energy Sebastian Burduja yesterday (4 November) signed off some €30 million of support for five battery energy storage system (BESS) projects totalling 791.48MWh. They are: Aukera Project Company Delta’s 299.75 MWh project in Gura Ialomiței, Ialomița county, which received €9.9 million Baboia Solar Plant’s 121.92 MWh project in Ogrezeni, Giurgiu county, which received €6 million HQ Plus’s 79.24 MWh project in Sânpaul commune, Mureș county, which received €4.3 million Energy Capital Group’s 199.13 MWh project in the village of Iaz, Caraș-Severin county, which received €10.7 million HQ Curat’s 91.44 MWh project in Sânpaul commune, Mureș county, which received €4.9 million However, the Ministry’s announcement added that another 13 projects totalling 1,757MWh have been sent pre-contracting notices for a total support of €73.8 million, so the total capacity supported should grow to around 2.5GWh. Just yesterday, Energy-Storage.news reported on a 2GWh BESS for which an environmental permit is being sought by its developer, independent power producer (IPP) Monsson. The double helping of news from the region comes a month after Solar Media’s Energy Storage Summit Central and Eastern Europe (CEE) 2024 in Warsaw, Poland, which looked at the major drivers, opportunities and regulatory and market challenges for storage in CEE. The Romanian ministry’s announcement also included support for solar PV manufacturing, including €32.9 million for a 1.5GW solar panel factory in Barlad, Vaslui county, being built by SC Heliomit.

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