On July 17, 2025, the intelligent cluster project featuring a PV-storage-charging DC microgrid based on power routers, designed to serve century-old heritage buildings in Amsterdam, officially commenced shipment. The first batch will be transported to the Netherlands via the China-Europe Railway Express.
This project is supported by groundbreaking technologies, including a full DC architecture for PV storage, charging, distribution, and consumption within the microgrid; multi-loop DC networking between microgrids; DC power supply and distribution for grid-connected/off-grid PV storage systems; and multi-source, multi-terminal DC droop grid-forming control via a cluster of power routers. It provides efficient and highly reliable green power for century-old heritage buildings in Europe, illuminating these treasures with Weiguang Energy (WG Energy)'s smart energy solutions. The project delivers a "zero-carbon answer" for the implementation of a world-leading DC microgrid project in Amsterdam.
Century-Old Architecture Meets WG Energy: Solving a Centuries-Old Challenge for European Heritage Buildings
Along the canals of Amsterdam, brick and stone buildings that have weathered centuries of wind and rain bear witness to rich history and art. Yet, they have long faced severe challenges: aging power distribution systems, difficulty in retrofitting, low energy efficiency, and insufficient reliability. The traditional AC power supply model proves cumbersome and inefficient when applied to these historical treasures.
This project directly tackles this century-old challenge, constructing an unprecedented green power supply solution with breakthrough technologies:
Full DC Multi-loop Networking: By completely eliminating traditional AC conversion stages, this approach builds an efficient and streamlined pure DC power "highway," significantly reducing energy conversion losses.
Grid-Connected/Off-Grid DC Direct Supply: Clean DC electricity generated by rooftop photovoltaic arrays, after being stabilized and buffered by an advanced energy storage system, is directly supplied to DC loads within the building (such as high-efficiency LED lighting, DC air conditioners, and charging stations) without any conversion steps, maximizing the utilization of every unit of green energy.
Intelligent Control of Power Router Clusters (Core Breakthrough): At the heart of the project are 10 domestically produced power routers, equipped with revolutionary "multi-source, multi-terminal DC droop grid-forming" technology. This effectively injects an intelligent brain and collaborative neural network into the microgrid.
Internal Self-Consistency (Within the Microgrid): Inside a single DC microgrid, the power router coordinates the AC grid converter, DC energy storage system, and PV MPPT controllers. Through "multi-source droop control," it achieves autonomous power balancing and distribution, maintaining internal voltage stability.
External Mutual Support (Between Microgrids): At the cluster level, composed of multiple DC microgrids, the power routers also employ "multi-terminal droop control" for intelligent networking. Operating like a well-trained team without the need for centralized commands, they autonomously and smoothly regulate power flow between each other based on the real-time status (generation, storage, and load) of each microgrid. This constructs a multi-loop, self-balancing, and highly resilient energy internet, capable of confidently handling complex and changing operating conditions.
Hardcore Technology Forges Industry Milestones: WG Energy Achieves Multiple "Firsts in Europe"
This project is not only a culmination of advanced technologies but also, through its pioneering practices, has etched several shining "firsts" into European energy history:
Europe's First Application of a PV-Storage-Charging-Hydrogen Direct Flexible Commercial Complex: The project deeply integrates PV, energy storage, and charging (with phase two expanding to include DC hydrogen production and storage). Through advanced PV-storage collaborative control algorithms, it achieves dynamically optimized matching of energy generation, storage, and consumption. According to calculations, the overall comprehensive energy efficiency has increased by over 8%. This pioneers a practical and feasible new path for green, highly reliable energy supply for the vast number of century-old heritage buildings in Europe urgently in need of energy upgrades.
Europe's First High-Complexity DC Microgrid Cluster Project: This project successfully translates cutting-edge laboratory theories into real-world engineering. It has practiced and validated a complete set of complex and advanced system control schemes, including multi-source DC droop grid-forming control within the grid, multi-terminal DC droop networking control between grids, and multi-timescale coordinated control of source, grid, load, and storage. This marks the achievement of a world-class level in the design, implementation, and control of complex DC microgrid systems, setting a new benchmark for the industry.
The Netherlands' First Commercial Complex Project with a Green Power DC Direct Supply Architecture: As the first commercial complex-level project in the Netherlands to adopt a full DC architecture for multi-terminal direct green power supply, its operational data will compellingly validate the significant advantages of DC distribution in terms of reliability (more stable voltage, faster fault recovery) and economic efficiency (simplified equipment, reduced losses, improved energy efficiency). This will clear doubts and lay a solid practical foundation for the future promotion of DC power distribution and consumption technology, as well as green power DC direct supply technology, throughout Europe and the wider world.
Europe's First Application of Third-Generation DC Energy Storage Systems: The project utilizes cutting-edge third-generation energy storage system technology, featuring module-level dynamic reconfiguration capabilities. This technology offers significant advantages, including modular design, module-level intelligent management, module-level dynamic reconfiguration, enhanced safety, and extended lifespan, thereby markedly improving the economic efficiency, reliability, and safety of the energy storage system. This successful application has created a high-standard benchmark project for the large-scale expansion of the company's third-generation energy storage products in the European market.
The China-Europe Railway Express: A New Camel Bells on the Green Technology Road
The core equipment of the project—power routers and DC energy storage systems embodying WG Energy's innovative wisdom—is now being transported aboard the "steel camel convoy" of the new era, the China-Europe Railway Express, traversing the vast Eurasian continent towards its destination. This major logistics artery running from east to west is not only a bridge for trade and commerce but has now also become a vital link for the dissemination of cutting-edge green technology.
The image of solar panels illuminating signal lights at the Alataw Pass serves as a vivid symbol of WG Energy's green technology power embarking on its journey to serve the world. This marks a steady step forward for WG Energy towards deep internationalization, backed by its formidable technological strength.
WG Energy Power Router: Redefining the Flow of Energy
The "WG Energy Power Router," as the core intelligent equipment of the project, has transcended the category of traditional power devices. It serves as the intelligent routing hub of the energy network and acts as the brain for achieving precise, intelligent management and dispatch of energy.
It enables clean energy to flow efficiently, freely, and reliably within complex networks. Its successful application clearly demonstrates to the world the "hardcore" technological strength and innovative capability that WG Energy possesses in the fields of power electronics technology and smart grid control.
A Green Future Flowing Through Ancient Masonry
When clean electricity generated by solar panels on the rooftops of century-old heritage buildings flows silently through the bricks, walls, beams and column of Amsterdam's ancient structures via this world-leading DC microgrid cluster system, lighting every lamp and powering every device, history and the future complete a handshake across time and space.
This beam of energy light, traveling across the ocean, will not only protect humanity's shared historical and cultural heritage, endowing it with the vitality for sustainable development, but also declares to the world: On the great journey to address climate change and achieve a zero-carbon future, Chinese wisdom and Chinese solutions are providing an indispensable and key driving force. The ancient continent of Europe is witnessing a new green chapter written by Eastern wisdom.
