Client Background: A prime example of Europe's transition to novel energy
The cooperative client is a well-known renewable energy developer in Europe. It has been deeply involved in the construction of photovoltaic and wind power projects for over 15 years. Its business covers core markets in the European Union such as Germany, Spain, and Denmark. It operates more than 30 new energy power stations with a total installed capacity of over 1.2 GW. As an active practitioner of the EU's "Green Deal", the client has three core demands:
1. Strict Compliance Requirements: The cables must fully meet EU CE certification standards—including the Low Voltage Directive (LVD), Electromagnetic Compatibility Directive (EMC), Construction Products Regulation (CPR), and Restriction of Hazardous Substances Directive (RoHS)—while also complying with the EN50575 fire safety standard and IEC 62930 requirements specific to photovoltaic cables;
2. Adaptability to Complex Environments: The cables must withstand the Europe extreme climates-ranging from the freezing cold of Northern Europe (-40°C) to the high temperatures of Southern Europe (+60°C), and endure harsh operating conditions such as dynamic torsion in wind power projects, prolonged outdoor exposure in solar installations, and salt spray corrosion in offshore projects;
3. Supply Chain Efficiency Assurance: Facing the challenges of cable shortages and extended delivery lead times in Europe (with IEA data indicating a doubling of procurement cycles between 2021 and 2025), it is essential to guarantee on-time delivery and ensure products pass rigorous factory acceptance test.
Application Scenario: Medium-voltage and low-voltage cable solutions for dual PV and wind power applications
The client is procuring a full range of medium-voltage and
low-voltage power cables for its 200 MW wind farm in northern Germany and 300 MW photovoltaic plant in southern Spain, specifically including:
| Products |
Performance |
| 10kV-36kV Medium-voltage Cable |
For main transmission lines connecting wind turbine nacelles to step-up substations and photovoltaic inverters to grid connection points, YJV22 armored XLPE cables are utilized, meeting the 1.8/3kV rated voltage requirement as well as the dynamic torsional demands of yaw systems, and passing the 5,000-cycle torsion test in accordance with the IEC 61492 standard. |
| 0.6/1kV Low-voltage Cable |
Employing PV1-F specialized photovoltaic cables and RVV flexible copper cables for connections between photovoltaic strings and power supply for wind turbine pitch control systems, and these cables are featured with a wide operating temperature range (-40°C to 120°C), UV resistance, and double insulation, conductor sizes ranging from 4mm² to 70mm² to meet various current load requirements. |
| Customized Services |
For offshore wind farm feeder cables, additional treatments for salt-spray resistance (meeting the 720-hour test standard) and hydrolysis resistance have been applied; the outer sheath utilizes 50% recycled polyethylene, reducing the carbon footprint by 80% compared to conventional products and aligning with EU low-carbon transition policies. |
Delivery and Inspection: Full-process compliance guarantee, zero defects for successful acceptance
To ensure our products meet EU market access requirements, we have established a quality control system based on "triple testing + full-process traceability":
1. Comprehensive factory testing: Testing covered 28 parameters, including electrical performance (insulation resistance, dielectric strength), mechanical properties (tensile strength, bending radius), and environmental adaptability (high/low-temperature cycling, UV aging), with results such as partial discharge ≤10pC and insulation hot-set elongation under load ≤175%, all fully meeting IEC standards;
2. Authoritative third-party certification: Conducted compliance verification in collaboration with an EU Notified Body, securing CE certification and the necessary technical documentation (including design drawings, test reports, and declarations of conformity) to ensure the product's free circulation across the 27 EU member states;
3. Guaranteed on-time delivery: Fulfilled all orders within the customer-mandated 12-week delivery window by leveraging localized warehousing in Europe and optimized cross-border logistics, thereby mitigating common industry risks associated with supply chain delays.
Customer feedback: Exceeding expectations in terms of performance and the overall cooperation experience
After the project was put into operation for 18 months, the customer provided a formal feedback report. The key evaluation is as follows:
Exceptional Reliability: The cables operated stably under extreme weather conditions (-35°C in German winters, 42°C in Spanish summers, no insulation failures or performance degradation. The system failure rate was 60% lower than in previous projects;
2. Significant Efficiency Improvement: Voltage drop was controlled to within 2% for
medium-voltage cables and ≤3% for low-voltage cables, fully complying with the GB50797-2012 design standard for PV power plants and boosting the plant's overall power generation efficiency by 3.2%;
3. Compliance Testing Cost Optimization: Comprehensive CE certification technical documentation and test reports enabled the client to successfully pass spot checks by EU regulators, saving approximately €400,000 in third-party testing fees;
4. Sustainability Compliance: The use of recycled materials ensured the project's carbon footprint meet EU ESG investment requirements, providing critical support for the client to secure future green financing.
Industry Representativeness and Universal Value of the Solution
The client's needs and challenges are highly representative of the European novel energy sector, and the success of this partnership validates three universal values of our solution:
1. Universal Applicability for Compliance Adaptation: Featuring comprehensive CE certification and adherence to specific standards, the solution is ready for immediate deployment in PV and wind power projects across the EU. It meets requirements for all scenarios: from small-scale residential installations to GW-class utility-scale plants, effectively addressing key industry challenges such as complex market entry and certification hurdles.
2. Universal Applicability for Environmental Compatibility: Designed to withstand diverse conditions of extreme cold, high heat, salt spray and UV exposure, the solution adapts to varied European geographies, including inland, offshore, and mountainous regions. It extends cable service life to over 25 years, thereby reducing total lifecycle costs.
3. Universal Applicability for Supply Chain Synergy: To address current cable shortages in Europe, a "localized inventory plus rapid response" mechanism has been established, cutting delivery times by 30% compared to the industry average. Comprehensive technical documentation and after-sales support are also provided, resolving customer challenges of procurement and project acceptance.
This solution has been successfully deployed in numerous renewable energy projects in France, Italy, and Sweden, with a cumulative delivery of over 5,000 kilometers of medium-voltage and low-voltage cables, making it a preferred choice for renewable energy enterprises.
