MOSCOW, June 9, 2026 —— Rockwill Electric today announced that its medium-voltage line automatic voltage regulator (AVR) has successfully completed over three years of field operation and validation by customers in Russia. The equipment maintained stable operation and remains in excellent condition under harsh environments reaching -45°C. This marks a substantial technical breakthrough for Rockwill in the field of power transmission and distribution equipment for ultra-cold regions. According to feedback from a Russian power grid company, since their commissioning in 2022, Rockwill's line automatic voltage regulators have been in continuous operation across multiple substations and lines in Siberia and the Far East for more than three years, enduring several winters where minimum temperatures dropped below -50°C. "The regulator's tap changer operations, voltage regulation accuracy, and control systems showed no signs of low-temperature stalling, insulation failure, or seal aging and leakage. All operating parameters remained normal, far exceeding our expectations for extreme-cold equipment," commented the customer's head of operations and maintenance. On-site Operation Photos of Rockwill RVR Series Voltage Regulators in Extreme Cold Conditions To overcome the extreme challenge of -45°C, Rockwill implemented systematic technical improvements in equipment materials, low-temperature resistant sealing, and specialized regulator structures: Upgrade of Low-Temperature Resistant Materials: Eliminating risks of cold brittleness. Advanced Low-Temperature Sealing System: Ensuring long-term sealing reliability under extreme cold. Optimization of Specialized Regulator Switch Technology. The Technical Director of Rockwill stated: "The 'excellent condition' reported by our Russian customers after more than three years of field operation is the best validation of our technical team's scientific research spirit and practical capabilities. Moving forward, we will continue to deepen our technical innovations to provide global users with even more reliable equipment."

Built on nearly 20 years of technological expertise, the new generation Rockwill medium-voltage automatic circuit recloser comes standard with smartphone connectivity and AI capabilities. It delivers smarter, more efficient, more convenient, and more reliable automatic line protection, monitoring, and control services to power asset owners worldwide. Physical photographs of automatic circuit recloser and Mobile APP field test Rockwill will launch completely free software and professional AI technical services for distribution network automation. Designed for grid engineers, protection engineers, O&M engineers, asset owners, and end users, these tools help analyze and interpret grid data, assist in operations and maintenance, and maximize power supply quality and safety! For more information, please visit:IEE Business

As the global energy transition accelerates and carbon neutrality goals gain momentum, medium-voltage distribution equipment is rapidly evolving towards SF₆-free, eco-friendly, compact, and intelligent solutions. Traditional SF₆ gas faces increasingly stringent environmental regulations due to its high Global Warming Potential (GWP), while conventional air-insulated equipment is limited by lower insulation margins and large footprints. In this context, Rockwill officially introduces its new-generation 24kV Dry Air Ring Main Unit (Pure Air / Dry Air Insulated RMU). Featuring a significantly smaller footprint, lower working pressure, and a completely green insulating medium, it provides a highly competitive SF₆-free solution for the industry. Core Product Features The Rockwill 24kV Dry Air Ring Main Unit uses pure dry air as the sole insulating medium, achieving true zero-carbon footprint. Its key design parameters and advantages are as follows: Insulating Medium: 100% dry pure air, GWP=0. Contains no fluorinated gases or gas mixtures, entirely eliminating environmental risks and handling costs associated with SF₆. Working Pressure: 0.2 MPa, lower than typical industry levels, reducing demands on sealing system design and long-term maintenance. Ultra-Compact Dimensions: Single Module Width: C/F functional unit cabinet width is only 325 mm, enabling flexible configurations. Three-Unit Compact Design Dimensions: Height: 1330 mm × Width: 975 mm × Depth: 780 mm. The overall footprint is significantly smaller compared to similar SF₆-free products, making it ideal for space-constrained installations (e.g., underground substations, urban renewal projects, compact switchrooms). High Performance: Rated voltage 24kV, rated current 630A, rated short-time withstand current 20kA/3s, mechanical endurance ≥10,000 operations, protection rating up to IP67 (gas compartment) and IP54 (cabinet). Smart Integration: Supports integrated primary-secondary intelligent monitoring and control, enabling real-time condition monitoring, rapid operation, and precise protection. Comparative Analysis with ABB SafeRing/SafePlus Air As a fellow SF₆-free dry air-insulated solution, the new Rockwill unit demonstrates clear advantages in installation footprint and working pressure: Technical Parameter Comparison: Rockwill 24kV Dry Air RMU vs ABB SafeRing/SafePlus Air 24kV Parameter Rockwill 24kV Dry Air RMU ABB SafeRing/SafePlus Air 24kV Insulating Medium Dry Pure Air Dry Air Rated Voltage 24 kV 24 kV Rated Current (Busbar) 630 A 630 A Working Pressure 0.2 MPa 0.25 MPa Dimensions (H×W×D) for Typical 3-Unit Configuration 1330 mm × 975 mm × 780 mm 1400 mm × 975 mm × 797 mm Single Module Width (Functional Unit) 325 mm 325 mm (for 12/24 kV functional units) Environmental Profile GWP=0, No fluorinated gases GWP=0   Key Features Compact design, lower working pressure, fully sealed gas compartment, smart monitoring & control Same footprint, interfaces, and operation as previous SF₆ models Key Advantage Insights More Compact Size: Rockwill's design is 70mm lower in height and 17mm less in depth, offering a smaller overall volume while maintaining the same width. This saves valuable space in substations. Lower Operating Pressure: The 0.2 MPa working pressure, compared to 0.25 MPa, reduces structural demands on the gas compartment, potentially enhancing long-term sealing reliability and lowering manufacturing complexity. Equivalent Environmental Performance: Both utilize dry air insulation with a GWP of 0, fully complying with stringent environmental regulations like the EU F-gas Regulation. Summary of Technical Advantages Green & Sustainable, Entirely Fluorine-Free: Uses pure air insulation, eliminating SF₆ or other F-gases across the entire lifecycle—from production and operation to decommissioning—thus solving challenges related to greenhouse gas regulation and handling. Space-Saving Design for Constrained Sites: Leverages optimized electric field design and solid composite insulation to ensure insulation performance while minimizing phase-to-phase and phase-to-ground clearances. Its industry-leading compact footprint is especially suitable for urban core areas, underground substations, and industrial park upgrades. High Reliability, Maintenance-Friendly Design: Fully sealed, welded stainless-steel gas compartment with long-life sealing ensures internal dryness and stability, preventing faults like condensation. The integrated operating mechanism and smart units support condition monitoring, enabling predictive maintenance. Easy Installation & Strong Compatibility: Features a standard modular design with interfaces compatible with mainstream products, supporting rapid deployment and non-stop power supply switching for efficient distribution network upgrades. Typical Application Scenarios Urban Distribution Network Upgrades: Underground substations, capacity expansion in old residential areas. Industrial Parks & Data Centers: Locations with high power supply reliability requirements and limited space. Renewable Energy Plants: Ring main units for PV or wind farm grid connection points. International Grid Projects: Particularly suited for regions with strict environmental regulations and space constraints. Conclusion The launch of the Rockwill 24kV Dry Air Ring Main Unit marks a significant step forward in the compactness and practical engineering of SF₆-free ring main units. While maintaining high performance and reliability, it offers superior space utilization and lifecycle cost benefits through its smaller size and lower operating pressure. As global demands for environmental sustainability and efficiency continue to rise, this product will provide robust support for the safe, green, and efficient operation of distribution networks.

[Lishui, China — May 2026] – Rockwill Electric, a leading national high-tech enterprise and global power transmission and distribution solution expert, proudly announces the successful completion of the Factory Acceptance Testing (FAT) for core electrical equipment ordered by the Rwanda Energy Development Corporation Limited (EDCL) This critical milestone, achieved at Rockwill’s Lishui intelligent manufacturing base, marks the official transition of Rwanda's national grid modernization project into the equipment delivery and on-site installation phase. Rigorous Compliance with IEC International Standards: 100% First-Time Pass Rate Conducted under the direct supervision and active participation of the EDCL delegation, the FAT process strictly adhered to IEC (International Electrotechnical Commission) standards and specific project technical codes. Rockwill’s engineering team performed comprehensive, end-to-end verifications on the following core equipment: Medium & High-Voltage Switchgear and Automatic Circuit Reclosers : Focused on mechanical operation reliability, dielectric strength, and continuous stability under high-load conditions. High-Efficiency Dry-Type Transformers: Underwent precise validation for load loss, temperature rise, and the responsiveness of the intelligent temperature control systems. Full System Safety Audits: Covered closed-loop performance tests for lightning protection, surge suppression, and mechanical interlocking safety devices. Through rigorous on-site live testing, all equipment passed inspection on the first attempt. Every technical parameter met or exceeded the international standards stipulated in the contract, showcasing Rockwill Electric's manufacturing precision and stringent quality control. Deepening African Market Penetration to Power Local Infrastructure "We are deeply honored to directly serve Rwanda's EDCL national grid project. This successful FAT not only confirms Rockwill Electric's capability to deliver durable, high-performance power solutions for Africa’s energy infrastructure, but also reflects our commitment to global energy equity," stated the Project Director at Rockwill Electric. "This project will significantly enhance grid stability and electricity access across Rwanda." End-to-End After-Sales Support Ensures Long-Term Operational Stability The approved equipment has now entered the specialized moisture-proof reinforcement packaging and logistics phase to guarantee on-time delivery. Moving beyond hardware supply, Rockwill Electric will provide a comprehensive "end-to-end" lifecycle service guarantee, including: On-Site Installation & Grid-Connection Guidance: Deploying senior field engineers to ensure flawless physical integration with Rwanda’s existing power network. System Integration & Commissioning: Providing round-the-clock technical support for smooth grid synchronization and early-stage operations. Localized Operation & Maintenance (O&M) Training: Empowering local Rwandan power departments to establish a robust daily inspection routine, maximizing equipment service life. Leveraging over 30 years of deep industry expertise, Rockwill Electric continues to utilize the technical advantages of its Lishui intelligent manufacturing base to build a smarter, greener, and more stable power future for global partners.

May 11, 2026 — Rockwill Electric announced today that its full range of high-voltage electrical equipment has officially adopted g3 (Green Gas for Grid) eco-friendly insulating gas technology. This initiative marks a pivotal step for the company in replacing sulfur hexafluoride (SF6) and driving the low-carbon transformation of power grids, offering the electric power industry an innovative solution that combines superior environmental performance with reliable insulation capabilities. 99% Carbon Reduction, Stable Operation at -30°C The core of the g3 technology applied by Rockwill Electric lies in using a mixture of C4F7N (C4-fluoronitrile) and carbon dioxide (CO2) to replace traditional SF6, which has a high Global Warming Potential (GWP). This technical solution achieves a breakthrough in environmental performance with a GWP reduction of over 99%, while also being non-ozone-depleting, significantly lowering its lifecycle environmental impact. In terms of performance, Rockwill Electric's g3 equipment demonstrates three core advantages: Equivalent Insulation Performance: Maintains the same insulation level as SF6 equipment, ensuring grid operational reliability is not compromised. Extreme Cold Adaptability: Capable of stable operation at temperatures as low as -30°C, meeting diverse climatic needs across northern and southern regions. Safe and Non-Toxic Characteristics: The gas itself is non-toxic, making it more environmentally friendly and safer for operators, in line with modern power equipment safety standards. SF6-free Dead Tank Circuit Breaker for 72.5 kV Full Range of Eco-Friendly Products for Seamless Replacement Based on g3 technology, Rockwill Electric has developed a product matrix covering core high-voltage transmission scenarios, including: Gas-Insulated Switchgear (GIS) Pass-type Insulated Gas Circuit Breaker (Hybrid-GIS) Dead Tank Circuit Breaker Live Tank Circuit Breaker Maintaining Compatibility While Upgrading Sustainability These products achieve a leap forward in environmental performance while maintaining identical rated parameters and installation dimensions to existing SF6 equipment. Whether for equipment upgrades or new projects, users can directly replace legacy units without modifying existing substation layouts. This seamless compatibility significantly reduces retrofitting costs and project timelines, while allowing clients to benefit from policy incentives and tax advantages associated with carbon emission reductions. Domestic Technology Support: Fortifying Supply Chain Security The application of g3 technology by Rockwill Electric deeply integrates the independent innovation capabilities of the domestic industrial chain. The localization of C4F7N (C4-fluoronitrile), the core component of g3 gas, has achieved milestone breakthroughs: Research & Development: Since 2013, the China Electric Power Research Institute has led joint efforts to develop green and efficient synthesis processes, achieving gas purity levels of 99.9%. Field Validation: In June 2023, the nation's first 550kV eco-friendly gas-insulated metal-enclosed transmission pipeline using C4-fluoronitrile was successfully commissioned in Anhui, validating the maturity of this technology in high-end equipment applications. Rockwill Electric closely follows national strategic directives, transforming localized technologies into mature commercial products. This approach not only ensures supply chain security but also provides customers with cost-competitive green solutions. Intelligent Monitoring for Worry-Free Operation To ensure the long-term stable operation of g3 equipment, Rockwill Electric has developed a dedicated intelligent monitoring system. This system allows for real-time tracking of gas mixture ratios, humidity, and sealing status, promptly detecting and alerting operators to potential issues, thereby providing a dual layer of security for grid operations. Leading the Future of Green Grids "Rockwill Electric is always driven by technological innovation to power green development," stated the company's technical director. "The comprehensive application of g³ technology is not only a proactive response to the climate crisis but also a key practice in building a new type of power system. In the future, we will continue to deepen cooperation with industry partners to promote the standardization and large-scale implementation of eco-friendly gas technologies, contributing Chinese wisdom and solutions to the global energy transition." Choosing Rockwill Electric’s g3 products means choosing a cleaner, safer, and more sustainable energy future. Let us work together to "remove greenhouse gases from the grid" and light up a green world

Recently, Rockwill is pleased to announce the successful completion of the Factory Acceptance Test (FAT) for a significant order of containerized substations destined for a valued customer in France. This milestone marks a crucial step in the delivery of 15 units, specifically engineered to meet rigorous European standards. Project Overview and Technical Specifications The project involves the supply of 15 high-performance containerized substations. These units are designed with robust specifications to ensure reliability and efficiency within the French power distribution network. Key technical parameters include: Product Type: Containerized Substation Voltage Rating: 20/0.4kV Capacity: 2500kVA per unit Quantity: 15 Units Successful Factory Acceptance Test (FAT) The recent FAT was conducted to verify that the equipment meets all agreed-upon design specifications, safety standards, and performance criteria. The successful completion of this schedule confirms that the 15 units are fully compliant with the client's requirements and are ready for shipment. This achievement underscores Rockwill's commitment to quality assurance and its capability to deliver large-scale, customized power solutions to the international market. By adhering to strict testing protocols, Rockwill ensures that every substation operates safely and efficiently upon installation. Strengthening Global Partnerships Delivering a batch of 15 units to France represents a significant vote of confidence in Rockwill’s manufacturing capabilities and technical expertise. We look forward to the successful installation and commissioning of these substations, which will play a vital role in supporting the local infrastructure in France. About Rockwill Rockwill achieved 100% quality control by QMS Digital management and monitoring  system. Enforced quality control reach 100% warranty for power transformer, switchgear, recloser, substations, step voltage regulator, etc.  Aim to whole life care for all end-user!  We are approaching to whole life care level top class manufacturer!

Recently, Rockwill and Tanzania Electric Supply Company Limited (TANESCO) have reached a significant milestone in their collaborative 33kV distribution grid intelligent upgrade project: the 33kV line has been successfully restored to power, all supporting Automatic Voltage Regulators (AVR Step Voltage Regulators) have been energized and put into operation, and all AVR-related work has been successfully completed.   Addressing the pain points of voltage fluctuation and insufficient power supply reliability in Tanzania's local distribution grid, the project deploys Rockwill's customized 33kV AVR and Auto Recloser (AR) solutions. Through precise voltage regulation and intelligent reclosing technology, it comprehensively enhances the voltage stability and fault self-healing capability of the distribution grid. On-site, Rockwill's technical team worked collaboratively with TANESCO's construction personnel to efficiently complete equipment installation, commissioning and grid connection, ensuring stable operation of the AVRs in high-temperature outdoor environments and providing a solid guarantee for local industrial, commercial and residential power consumption.   With all AVRs put into operation, the project is entering its final phase: the installation and commissioning of Auto Reclosers (AR) on the line will be completed tomorrow, further improving the fast fault isolation and self-healing functions of the distribution grid and comprehensively enhancing regional power supply reliability.   The smooth progress of this project not only demonstrates Rockwill's technical strength and overseas project delivery capabilities in the field of medium-voltage distribution grid intelligent transformation, but also deepens the strategic cooperation with TANESCO, creating a replicable benchmark solution for distribution grid upgrades in East Africa and continuously supporting the development of local power infrastructure and economic and social progress.

Recently, Namibia Power Corporation (NamPower) announced the completion of a major power equipment procurement project. A total of 38 units of 2500kVA grounding transformers will be used for the supporting construction of multiple 20MW photovoltaic power plants across the country, providing critical support for the development of local renewable energy. As one of the countries with the richest solar resources in Africa, Namibia is actively promoting its energy transition strategy. According to Namibia's "National Integrated Resource Plan (NIRP 2022)" and the "2024 Energy Ministerial Order," the country plans to vigorously develop photovoltaic power generation projects to reduce dependence on imported electricity and enhance energy self-sufficiency. The 38 grounding transformers procured in this project will serve multiple 20MW independent power producer (IPP) photovoltaic projects. According to technical personnel from Namibia's power department, these 2500kVA grounding transformers are specifically designed for photovoltaic power plants, featuring excellent grounding protection functions and voltage stability, effectively ensuring the safe and stable operation of photovoltaic power plants. The equipment adopts advanced insulation materials and heat dissipation systems, adapting to Namibia's hot and dry climate conditions, ensuring long-term reliable operation in extreme environments. "Grounding transformers are indispensable key equipment for photovoltaic power plants. They not only provide system neutral point grounding but also effectively suppress harmonic interference and improve power quality," stated a Namibian power engineer. After the deployment of this batch of equipment, it will significantly enhance the power supply reliability and grid connection capabilities of photovoltaic power plants. This equipment procurement project is an important component of Namibia's "Renewable Energy Development Plan," with a total investment of approximately 18 million Namibian dollars. Upon implementation, the project is expected to add 760MW of photovoltaic power generation capacity to Namibia, reduce carbon dioxide emissions by approximately 1.5 million tons annually, and create more than 500 local jobs. A relevant official from Namibia's Ministry of Energy stated: "The deployment of these grounding transformers not only provides necessary equipment support for photovoltaic power plant construction but also lays a solid foundation for Namibia's energy diversification strategy. We will continue to advance renewable energy project construction to provide clean and reliable power supply for national economic development and improvement of people's livelihoods." It is reported that this batch of grounding transformers features intelligent monitoring capabilities, enabling remote fault diagnosis and condition monitoring, significantly reducing operation and maintenance costs and fault response time. With the deployment of this equipment, Namibia's renewable energy proportion is expected to increase to over 30%, providing more environmentally friendly and economical power services for local residents and enterprises, while also setting a good example for energy transition in the African region.

Recently, domestic renowned power equipment manufacturer Rockwill successfully completed an important order, delivering 145 three-phase oil-immersed distribution transformers to Pakistani customers. These products, with technical specifications of 33kV/1000kVA/25A, will be widely applied in key projects including Pakistan's urban distribution network renovation, industrial park power supply, and new energy grid connection, providing reliable power supply guarantee for the local area. The delivered transformers adopt Rockwill's latest developed high-efficiency energy-saving technology, with significant improvements in performance and reliability. The products feature 15% reduction in no-load loss and 10% reduction in load loss, significantly decreasing annual operating costs. Meanwhile, environmentally friendly insulating oil compliant with RoHS standards is adopted, and intelligent functions such as temperature monitoring and oil level detection are integrated to support remote operation and maintenance. The transformers have passed rigorous short-circuit withstand capability tests, ensuring safer and more reliable operation. These transformers will primarily serve areas including Pakistan's urban distribution network renovation, industrial park power supply, and new energy grid connection, effectively enhancing local power supply reliability and power quality, while supporting economic development and meeting people's livelihood electricity demands. With Pakistan's rapid economic development and continuously growing power demand, the market demand for distribution transformers continues to expand. Rockwill, as a leading domestic power equipment manufacturer, possesses a complete quality management system and advanced production equipment. The company's products have passed multiple international certifications and are exported to more than 30 countries and regions worldwide. This large-scale delivery not only demonstrates Rockwill's strong production capacity and technical strength but also provides crucial support for Pakistan's power grid construction. According to estimates, these transformers are expected to save approximately 1.5 million kilowatt-hours of electricity annually, reduce maintenance costs by about 30%, with equipment service life reaching over 25 years. Rockwill stated that the company will continue to increase R&D investment, launch more high-performance and intelligent power equipment products, actively expand overseas markets, and contribute to global energy transition.

Recently, Rockwill has successfully delivered and put into operation 400 prefabricated substations for Niger’s national grid upgrading and rural electrification program, effectively improving local power supply capacity and reliability.   To adapt to Niger’s high-temperature, arid and dusty climate, these 20kV/0.4kV integrated compact substations are specially optimized with IP54 protection, anti-corrosion, sun-proof and dust-proof design, as well as high-efficiency heat dissipation systems. All operation labels and technical documents are provided in French for local use.   Each unit has passed strict factory tests in accordance with IEC international standards. With professional on-site installation, commissioning and training services, all equipment has been formally accepted by NIGELEC and runs stably with zero major failures. The project has been highly praised by Niger’s power authorities, fully proving Rockwill’s strong delivery capacity and product competitiveness in the African French-speaking power market.

Recently, Rockwill 11kV R-GIS gas-insulated switchgear has been successfully commissioned in Ghana’s power distribution network. With its advantages of compact structure, high reliability and low maintenance, the equipment effectively addresses local challenges including limited installation space, hot and humid environment, and high requirements for power supply stability, supporting the upgrading of power infrastructure in West Africa.   As an important economy in West Africa, Ghana is seeing a continuous growth in industrial and urban power demand. Traditional open-type power distribution equipment features large footprint and weak protection, making it difficult to adapt to high-temperature and high-humidity environments. The newly commissioned R-GIS adopts a fully enclosed modular design, reducing the occupied area by 60% compared with conventional equipment and greatly cutting civil engineering costs. The gas chamber reaches IP67 protection level, capable of resisting harsh conditions such as damp heat, dust and temporary water immersion, with stable and reliable insulation performance.   With a rated voltage of 12kV, rated current of 1250A and high short-time withstand current of 31.5kA/3s, the switchgear is equipped with complete five-prevention interlock and intelligent monitoring functions, supporting local/remote control and fault location, which comprehensively improves power supply safety and operation efficiency. A total of 20 sets of equipment have been put into operation and maintained zero-failure operation since commissioning, significantly enhancing the reliability of the distribution network and winning high recognition from Ghana Electricity Company. The successful implementation of this project fully demonstrates Rockwill’s technical strength and overseas service capacity in the field of medium-voltage gas-insulated switchgear, setting a typical benchmark for the promotion and application of China’s high-end power equipment in the African market.

[WENZHOU, CHINA] —— Rockwill, a leading global provider of power equipment, recently announced the successful completion of production and rigorous quality testing for 73 units of 33kV outdooroil-immersed voltage transformers (VTs). The consignment is now officially en route to Zambia. This large-scale export marks a significant milestone in Rockwill’s ongoing commitment to strengthening Africa's power infrastructure through high-performance transformer solutions. Technical Precision & Environmental Resilience These voltage transformers have been specifically engineered to meet the demanding operational requirements and diverse climatic conditions of the Zambian power grid. Key technical highlights include: Rated Voltage: 33kV, optimized for local medium-voltage distribution networks. Product Type: Outdoor oil-immersed design, ensuring superior dielectric strength and efficient thermal management. Protection Standards: Enhanced hermetic sealing to prevent insulation degradation caused by high ambient temperatures, humidity, and particulate ingress. Rigorous Quality Control & Logical Verification Acting as the "eyes" of the power system, the accuracy and reliability of voltage transformers are paramount. Rockwill adheres to stringent International Electrotechnical Commission (IEC) standards throughout the manufacturing process: Insulation Integrity: Each unit underwent high-voltage partial discharge testing to ensure zero breakdown risk during long-term field operation. Measurement Accuracy: Precision calibration was performed on every transformer to ensure accurate data acquisition for grid monitoring, even under fluctuating load conditions. Scalable Delivery: The seamless fulfillment of 73 units demonstrates Rockwill’s robust flexible manufacturing capabilities and its ability to meet tight project timelines for international clients. Advancing Zambia’s Energy Infrastructure Zambia continues to prioritize the stability and expansion of its national grid. Rockwill’s 33kV voltage transformers will be deployed across regional substations and distribution hubs, providing essential monitoring and protection for industrial production and residential electricity supply. "We recognize the critical role that 33kV networks play in Zambia's energy architecture," stated a spokesperson for Rockwill. "The delivery of these 73 units is more than a logistical achievement; it is a testament to our engineering rigor and our promise to enhance global power safety. We remain dedicated to supporting the modernization of power grids in 'Belt and Road' initiative countries." About Rockwill Rockwill is a premier manufacturer of comprehensive power distribution equipment and components, specializing in medium and high-voltage solutions. Through continuous engineering innovation and uncompromising quality management, Rockwill provides reliable transformers, switchgear, circuit breakers, and instrument transformers to the global energy sector.

Recently, 152 customized 30kV oil-immersed transformers manufactured by China’s Rockwill Electric for Zimbabwe have completed production, rigorous quality testing, and shipment. These units will comprehensively support Zimbabwe’s power infrastructure upgrade and distribution network renovation, injecting new momentum into enhancing local power reliability and sustainable energy development. Engineered specifically for Zimbabwe’s harsh operating environment—high temperatures, pervasive dust, and significant load fluctuations—the transformers integrate high-stability insulation materials, optimized cooling structures, and robust protective designs. They deliver core advantages including low losses, strong impact resistance, and extended service life, fully complying with local grid standards and meeting diverse demands across mining, industrial, and commercial sectors. Deployment will focus on regional distribution network expansion, aging substation retrofits, and critical-area capacity upgrades, effectively resolving voltage instability and supply shortages while strengthening Zimbabwe’s power network resilience. Throughout production, Rockwill strictly adhered to international manufacturing standards (IEC, GB), implementing end-to-end quality control—from raw material sourcing and core component processing to final assembly, dielectric withstand testing, and partial discharge detection—ensuring every unit achieves certified performance and operational safety. Upon commissioning, the transformers will significantly elevate distribution capacity and power quality, providing stable electricity for residential use, industrial growth, and key economic sectors. This project exemplifies Chinese enterprises’ tangible contribution to Africa’s energy infrastructure development. It not only accelerates Zimbabwe’s grid modernization but also deepens China-Africa collaboration in power equipment manufacturing and sustainable energy solutions, reinforcing shared commitment to Africa’s electrification and green energy transition.

Recently, a batch of customized transformers tailored for Africa’s complex environments has been progressively shipped to South Africa, providing core support for local grid renovation, industrial power supply, and new energy projects—showcasing Rockwill’s technical strength and overseas adaptability. These 15 kV oil-immersed transformers feature corrosion-resistant coated tanks and high-temperature insulating oil for stable operation from -5°C to 55°C. High-permeability silicon steel cores and optimized heat dissipation reduce transmission losses, aligning with Africa’s green energy transition. Deployed in South Africa’s distribution network upgrade, they enhance power reliability and industrial capacity. Rockwill equipment has achieved stable operation across South African distribution projects, effectively alleviating regional power shortages. Rwanda, Gambia, and others are advancing grid upgrades with plans to install nearly 300 high-capacity transformers and renovate medium- and low-voltage lines. As a key contributor to the Belt and Road Initiative’s energy cooperation, Rockwill leverages customized, weather-resistant, and maintenance-friendly solutions to support Africa’s sustainable energy development. More Africa-optimized transformers will continue to be exported, driving grid modernization and new energy growth across the continent.

Philippines Project Site: Installation of Our 22 kV Recloser Completed to Safeguard Medium-Voltage Distribution Network Safety and StabilityRecently, our company’s self-developed 22 kV recloser controller was successfully installed and energized on a distribution line within an industrial park in the Philippines, marking the full validation of its adaptability to Southeast Asia’s high-temperature, high-humidity conditions. Featuring a modular intelligent control design, the recloser enables rapid fault detection, automatic tripping/reclosing, and remote monitoring to enhance grid reliability. Enhanced with moisture-proof and salt-fog resistant protection compliant with IEC standards, it ensures stable operation under extreme local climates. The on-site team completed hoisting, wiring, and commissioning per safety protocols; all core parameters—including response time and fault isolation accuracy—met specifications, earning high recognition from the local utility. This milestone strengthens our Southeast Asian market presence and delivers a reliable Chinese solution for power grid modernization along the "Belt and Road Initiative." We remain committed to advancing intelligent distribution technologies for global customers.

Recently, a batch of 1,500 units of 35kV oil-immersed transformers manufactured by the Chinese producer Rockwill successfully passed factory acceptance tests (FAT) and is set for shipment to Tanzania for local power grid upgrade projects. Inside the production facility, Rockwill’s technical team and Tanzanian clients jointly conducted comprehensive equipment inspections. All metrics, from dielectric insulation performance to operational parameters, met rigorous international standards. These oil-immersed transformers will provide stable and reliable power support for the Tanzanian grid, effectively enhancing local power supply reliability and energy efficiency. As a manufacturer deeply committed to the power equipment sector, Rockwill continues to expand its presence in the African market. Leveraging superior product quality and a comprehensive service system, the company contributes "China’s Strength" to the energy development of Tanzania and many other African nations.

Recently, a delegation of overseas power industry customers visited the production base of Rockwill  to conduct an on-site inspection of the entire process of power equipment R&D, production, and testing, laying a solid foundation for deepening international cooperation and expanding the global market.   Accompanied by Rockwill's technical and commercial teams, the customers successively visited core areas such as the transformer production workshop and the high-voltage comprehensive test hall. In front of the transformer test platform, technicians elaborated on the product's design concept, manufacturing process, and full-life-cycle quality control system, and demonstrated key performance tests including withstand voltage, insulation, and load testing on-site, intuitively showcasing the core advantages of Rockwell's equipment in terms of stability, reliability, and intelligence. The customers listened carefully to the explanations, stopped from time to time to check the equipment details, and conducted in-depth exchanges with our staff on issues such as product technical parameters, overseas application scenarios, and customized solutions. During the exchanges, the customers highly recognized Rockwill's advanced production equipment, rigorous testing procedures, and high-standard quality control system, and fully affirmed the outstanding performance of Chinese power equipment in technical maturity, cost-effectiveness, and delivery capacity. Both sides discussed cooperation opportunities in areas such as overseas power grid upgrading and new energy supporting facilities, and reached preliminary consensus on subsequent project docking, technical support, and localized services.   This visit by overseas customers not only further deepened mutual trust between the two parties, but also highlighted Rockwill's competitiveness in the global power equipment market. In the future, Rockwill will continue to focus on technological innovation, optimize its product and service system, provide higher-quality power solutions to support the construction of global energy infrastructure, and join hands with global partners to explore new blue oceans in the international market.

Recently, Rockwill Group hosted a high-level technical delegation from the Kenya Power and Lighting Company (KPLC). The visit focused on an in-depth technical exchange regarding the entire manufacturing chain of 230kV Dead Tank Circuit Breakers (DTCBs). The delegation observed the complete production process—ranging from high-precision metal tank stamping and SF₆ interrupter sealing to intelligent control module integration and dielectric performance testing. This visit has laid a solid foundation for the full integration of Rockwill’s 230kV DTCBs into Kenya’s "National Grid Upgrade Plan." As a benchmark Chinese enterprise deeply rooted in the medium-to-high voltage transmission and distribution sector, Rockwill has consistently driven product innovation through its "Environmental Adaptation + Intelligent O&M" strategy. Its 230kV DTCB series has successfully served grid projects in over 40 countries across Southeast Asia, Latin America, and Africa. In several 230kV substation upgrade projects in Nairobi and Mombasa, the series has achieved "zero-fault operation" for three consecutive years. With a power supply reliability rate of 99.99%, it has earned the profound trust of local O&M teams and become a preferred equipment choice for Kenya’s grid modernization. Currently, Kenya is accelerating its "National Grid Modernization Roadmap" to address critical pain points such as extreme high temperatures, arid dust storms, high line failure rates, difficulties in remote inspection, and grid instability. Rockwill’s 230kV DTCB offers core advantages including a fully sealed SF₆ insulated structure, superior resistance to high temperatures and dust (capable of withstanding extreme temperatures from -5°C to 45°C and resisting heavy sand erosion), and long-term maintenance-free operation (with cycles up to 10-15 years). Proven in multiple Kenyan grid projects, this solution has increased fault handling efficiency by 55% and reduced O&M costs by 70%, making it a key component in enhancing the resilience and reliability of Kenya’s T&D network while perfectly adapting to the local high-temperature, high-humidity, and dusty outdoor environments. At the conclusion of the visit, David Otieno, Technical Director of KPLC, stated: "The stable performance of Rockwill’s 230kV DTCBs in the high-temperature and dusty environments of Mombasa is impressive. Its fully sealed structure effectively resists dust erosion and extreme heat, fully meeting the rigorous requirements of Kenya’s grid upgrades. We plan to deploy this product in eight new 230kV smart substation projects in regions like Nairobi and Mombasa. Furthermore, we look forward to Rockwill establishing a technical service center in Nairobi to provide localized technical training and rapid fault response support, bolstering Kenya’s grid modernization." The KPLC delegation’s visit to the intelligent manufacturing base is not only a transparent demonstration of Rockwill’s technical prowess but also a significant milestone in China-Kenya power cooperation. It drives the partnership toward deeper synergy in "products + services + localization." Looking ahead, Rockwill will continue to empower East African grid construction through innovative technology, focusing on the iteration of core products like the 230kV series. By optimizing performance in accordance with IEC 62271-100 international standards, Rockwill aims to join hands with global partners to build a secure, efficient, and sustainable energy future.

Rockwill Group recently welcomed international client delegations to its advanced manufacturing facility for a series of comprehensive Factory Acceptance Tests (FAT). The visits centered on the rigorous validation of medium-voltage power equipment, including distribution transformers and smart reclosers, ensuring they meet the exacting technical specifications for critical grid modernization projects. During the FAT process, clients were deeply engaged in every stage of quality verification. They monitored real-time performance data on automated test consoles, witnessing precision load and insulation tests, while also observing on-site electrical parameter measurements conducted by Rockwill's technical experts. This hands-on approach allowed clients to directly confirm the equipment's reliability, safety, and compliance with international standards. As a trusted global provider of power distribution solutions, Rockwill's commitment to quality is embedded in its "Precision Testing + Smart Manufacturing" strategy. Its products have been deployed in over 50 countries, where they have consistently delivered enhanced grid stability and reduced operational downtime. At the conclusion of the tests, a client representative commented: "The level of detail and transparency in Rockwill's testing process is exceptional. Seeing the equipment perform under these rigorous conditions gives us complete confidence that it will deliver the reliability our projects demand."   These successful FATs underscore Rockwill's unwavering dedication to quality and customer partnership. Moving forward, the company will continue to prioritize rigorous testing and technical excellence, ensuring its solutions empower the resilience of power grids across the globe.  

Rockwill Group recently welcomed a delegation of international clients to its state-of-the-art manufacturing facility for a comprehensive Factory Acceptance Test (FAT). The visit focused on verifying the quality, performance, and compliance of Rockwill's 24kV smart reclosers and distribution transformers, which are destined for critical power grid projects across multiple countries. During the FAT, the international clients meticulously inspected the production lines, witnessed rigorous testing procedures, and reviewed detailed technical documentation. They were particularly impressed by Rockwill's advanced smart manufacturing capabilities, from automated component assembly to precision quality control systems, which ensure every product meets the highest international standards.   As a leading Chinese enterprise in the medium-to-high voltage distribution sector, Rockwill has built a strong reputation for reliability and innovation. Its smart recloser and transformer solutions have been successfully deployed in over 50 countries, delivering proven results such as enhanced grid resilience, improved power supply reliability, and reduced operational costs. At the conclusion of the FAT, the client representative stated: "Rockwill's commitment to quality and technical excellence is evident in every aspect of their operations. The performance of their products during the test has exceeded our expectations, and we are confident in their ability to deliver reliable solutions for our critical infrastructure projects." This successful FAT not only reaffirms Rockwill's position as a trusted partner for global power utilities but also marks a significant step forward in the company's international expansion strategy. Moving forward, Rockwill will continue to leverage its technological expertise to provide innovative, sustainable solutions that empower the modernization of power grids worldwide.