Belgium Industrial Rooftop Solar PV Cable Solution

At the end of July 2024, a 2MW large-scale logistics warehouse rooftop solar PV project in the Flanders region of Belgium was successfully completed and put into use. After 3 months of stable operation, its power generation efficiency fully met expectations, and there were no fault feedbacks from the cable system — behind this is the completeBelgium Industrial Rooftop Solar PV Cable Solution tailor-made by Dongguan GERITEL Electrical Co., Ltd. for the project, which is also a successful practice of Chinese wire exports to the Belgian solar PV field. From the pain point communication in the early stage of the project to the final smooth delivery, we have won high recognition from the Belgian customer with compliant products, customized solutions and efficient services, and also laid a solid foundation for expanding the European solar PV cable market.

Four Core Challenges of Belgian Solar PV Projects

The customer of this cooperation is a local Belgian enterprise focusing on the development and operation of solar PV projects. In previous projects, it has encountered obstacles many times due to cable adaptability and compliance issues, and this 2MW logistics warehouse rooftop project is facing multiple intractable challenges. At that time, Belgium was in the development stage of "stable growth + stock optimization" for distributed rooftop solar PV. Industrial and commercial rooftops have become the market mainstream due to their large area, high self-consumption ratio and short investment payback period. However, the strict EU industry standards and complex rooftop structures also made the project progress difficult.

The customer's core difficulties are concentrated in four aspects: first, the rooftop space is extremely complex. The warehouse rooftop adopts a multi-slope design, with a large number of ventilation ducts and equipment foundations distributed. Conventional cables have insufficient flexibility, making wiring difficult, and it is easy to have messy wiring and too many joints, leaving potential safety hazards; second, the fire protection requirements are strict. As an EU member state, Belgium strictly enforces the CPR regulation (EN 50575), requiring cables to meet the low smoke zero halogen (LSZH) standard to avoid toxic and harmful gases in case of fire, which puts extremely high requirements on cable materials and craftsmanship; third, the installation efficiency is low. The rooftop construction space is limited and the operation difficulty is high. Conventional cables need on-site joint production and have no clear meter marks, which is time-consuming to cut and difficult to meet the project schedule requirements; finally, the long-term reliability requirement. The service life of the solar PV system needs to be more than 25 years, and Belgium has obvious temperature differences between seasons. Cables need to have excellent UV resistance, anti-aging, high and low temperature resistance to avoid frequent maintenance and reduce operating costs in the later period.

When selecting suppliers, the customer compared many enterprises and finally chose us. The core considerations are three points: first, our solar PV cables have authoritative TÜV certification with certificate number B 126326 0001 Rev.00, which fully complies with EU standards and can smoothly pass the project acceptance; second, we have rich experience in undertaking similar projects, able to accurately connect with project needs and provide one-stop customized solutions; third, we have fast delivery and professional services, able to ensure the project is completed on schedule and solve the customer's worries.

Customized Breakthrough: Solving Every Core Pain Point with Compliant Products

In response to the customer's four major difficulties, we did not adopt conventional standardized products, but tailored a set of highly adaptable cable solutions combined with the actual project needs. Every product and every design accurately corresponds to the customer's core demands, which is also the core difference between us and other suppliers.

To solve the problem of "complex rooftop space and difficult wiring", we abandoned the rigid conventional cables and equipped the project with high-flexibility solar PV DC cables (Class 5 conductor). The core product is H1Z2Z2-K model PV Cable, choosing two mainstream specifications: 4mm² (suitable for short-distance wiring at the edge of the rooftop) and 6mm² (suitable for long-distance wiring in the center of the warehouse). The cable adopts tinned copper conductor, which has excellent corrosion resistance, combined with double-layer XLPO insulation design, and the high temperature resistance range can reach -40~120℃. It can not only adapt to the climate characteristics of low temperature in winter and high temperature in summer in Belgium, but also resist outdoor UV radiation for a long time to avoid aging and cracking of the insulation layer; at the same time, its advantage of small bending radius can flexibly adapt to the wiring needs of multi-slope rooftops and around obstacles, without a lot of cutting and splicing, reducing the number of joints, lowering the risk of failure, and making it more convenient for construction personnel to carry and lay.

In response to the "strict fire protection standards", all our cables have passed CPR certification (B2ca/Cca level), fully complying with EU EN 50575 regulations, and adopting low smoke zero halogen (LSZH) materials. Compared with ordinary flame-retardant cables, they will not produce toxic and harmful gases and a lot of smoke in case of fire, which can maximize the safety of personnel and the integrity of equipment, and completely solve the customer's worries about cable non-compliance and failure to pass acceptance. Among them, N2XY model AC Cable (choosing 5×16mm² and 5×25mm² specifications) is used for AC transmission from the inverter to the power distribution system, with excellent insulation performance and low transmission loss; H07V-K model Earthing Cable (choosing 6mm² and 16mm² specifications) is responsible for the grounding protection of the entire system, and the grounding resistance meets EU standards, effectively avoiding the risk of electric leakage.

To solve the pain point of "low installation efficiency", we innovatively provide pre-assembled cables, completing the joint production at both ends of the cables in advance. Construction personnel can directly connect and install them without on-site operation; at the same time, all cables are printed with clear meter marks, which is convenient for accurate cutting and avoiding material waste. Finally, the original 20-day cable installation period was shortened to 14 days, and the installation efficiency was increased by 20–30%. In addition, we also arranged professional technical personnel to provide remote guidance for construction, timely answer questions during the installation process, and further ensure the installation quality and efficiency.

In response to the "long-term reliability" requirement, our solar PV DC cables adopt the structure of tinned copper conductor + double-layer XLPO insulation + sheath. Compared with ordinary copper conductors and single-layer insulation cables of other suppliers, they have more outstanding corrosion resistance, anti-aging and UV resistance, and the service life can reach more than 25 years, which is synchronized with the service life of the solar PV system, greatly reducing the customer's later maintenance costs. At the same time, the supporting control cables are selected from LIYCY (shielded control cable) and KVV series. Among them, LIYCY model chooses 2×1.0mm² and 4×1.5mm² specifications, and KVV model chooses 4×1.5mm² and 7×1.5mm² specifications. The shielding design can effectively resist electromagnetic interference, ensure the stable communication between the monitoring system and the inverter, and avoid solar PV system failures caused by signal interference.

Quality and Delivery: Double Guarantee to Make Cooperation Worry-Free

For overseas solar PV projects, product compliance and delivery timeliness are the keys to the smooth progress of the project. We always put quality first. In addition to the core solar PV DC cables having TÜV certification (certificate number B 126326 0001 Rev.00), all other cables have passed IEC national standard certification. Before leaving the factory, each batch of products will undergo strict quality inspection, including insulation performance, voltage resistance performance, UV resistance performance, bending performance, etc., to ensure that all indicators are fully up to standard. At the same time, we also provide complete product certification documents and test reports to help customers smoothly pass the local project acceptance in Belgium.

The customer has strict requirements on the project schedule, clearly stipulating that the cables must be delivered by mid-April 2024 to ensure the smooth progress of subsequent construction. With a mature production system and efficient supply chain management, we quickly responded to customer needs, prioritized the production plan of the project, optimized the production process, and shortened the production cycle; at the same time, we connected with international logistics in advance, selected efficient and stable transportation channels, and tracked the cargo transportation status throughout the process to avoid logistics delays. Finally, we completed the production, inspection and packaging of all cables on April 10, 2024, which was 5 days earlier than the agreed time, reserving sufficient construction time for the customer. During the delivery process, we also provided detailed product lists and installation manuals, arranged professional technical personnel to connect remotely, and provided technical support throughout the process to ensure the smooth delivery process.

Win-Win Cooperation: More Than Product Supply, But a Long-Term Partner

After the project was put into use, the cable solution we provided performed excellently. It not only perfectly adapted to the complex rooftop structure with neat and standardized wiring, but also passed the strict inspection of the local fire department and acceptance agency in Belgium. The fire protection performance, transmission performance and stability all met expectations. The customer feedback that our cable products have stable performance and strong compliance, and the installation efficiency is greatly improved, which not only helped them complete the project commissioning on schedule, but also reduced the later maintenance costs, realizing the core demand of self-consumption and reducing electricity costs.

This cooperation not only achieved a win-win situation for both parties, but also became an important breakthrough for us to expand the Belgian solar PV market. As a mature distributed rooftop solar PV market in Europe, Belgium has stable policies and strong demand, and our compliant products, customized solutions and efficient services are exactly in line with the needs of the local market. At present, the customer has clearly stated that they will continue to carry out long-term cooperation with us to jointly expand other solar PV projects in Belgium, which has further improved our visibility and influence in the European solar PV cable export field.

Join Hands Together: Invite Belgian Solar PV Practitioners to Embrace a Green Future

The stable growth of the Belgian solar PV market provides broad development space for solar PV cable suppliers, but it also puts higher requirements on the compliance, reliability and efficiency of products. If you are also engaged in the development and operation of solar PV projects in Belgium, facing pain points such as complex rooftop wiring, strict fire protection standards, low installation efficiency and insufficient long-term reliability, if you need a professional, compliant and efficient Belgium Industrial Rooftop Solar PV Cable Solution, please choose Dongguan GERITEL Electrical Co., Ltd.

We have authoritative product certification and rich experience in undertaking similar projects, and can provide customized solutions according to your project needs; our products have guaranteed quality, with a service life of more than 25 years, fully complying with EU CPR regulations and LSZH requirements, and adapting to the climate and market needs of Belgium; we have fast delivery and professional services, providing technical support and after-sales guarantee throughout the process, so that you have no worries in the process of project progress.

Contact us now to get an exclusive solar PV cable solution, and work together to win the Belgian solar PV market and embrace a green energy future!

Contact Information

Dongguan GERITEL Electrical Co., Ltd.

Tel/WhatsApp/WeChat: +86 135 1078 4550 / +86 136 6257 9592

Email: manager01@greaterwire.com