Solar Cable for Poland 18kW Rooftop Solar PV System

Background of the Poland 18kW Rooftop Solar PV System Project

The 18kW rooftop solar photovoltaic system project in Krakow, Poland, is a small-scale distributed photovoltaic installation. This project promotes the use of clean and renewable energy by utilizing solar energy to meet household electricity needs. The system has a total installed capacity of 18 kW, providing a stable, efficient, and environmentally friendly power supply to the residential area while reducing dependence on traditional fossil fuels. In recent years, Poland has actively promoted the development of renewable energy, with the government encouraging rooftop solar projects through subsidies and green electricity policies.

The rooftop photovoltaic system consists of high-efficiency monocrystalline silicon solar modules, inverters, mounting brackets, and related electrical accessories. The solar cables play a crucial role in ensuring the safe, reliable, and efficient transmission of power between the solar panels and the inverter.

The Process of Purchasing Solar Cable

The project contractor contacted our business manager, Carolyn, through the company website, expressing a need for high-quality solar cables suitable for their rooftop photovoltaic (PV) system. They required H1Z2Z2-K solar cables with XLPO insulation, UV resistance, and high-temperature resistance (up to 120°C). These cables would be used for the DC connection between the PV modules and the inverter and must fully comply with EN 50618 and IEC 62930 standards.

Upon receiving the client's inquiry, Carolyn immediately consulted our technical R&D department. Considering the project environment—high UV radiation, temperature variations from -25°C to +90°C, and rooftop installation—our engineers recommended H1Z2Z2-K 4mm² single core solar cables, and 6mm² single core solar cable, featuring double insulation and tinned copper conductors. Solar cables' excellent weather resistance and mechanical properties which is ideal for long-term outdoor applications.

During the communication process, the client's technical engineers requested detailed TÜV Rheinland certification numbers for each cable type to verify their authenticity. In addition, they requested samples for testing to ensure the cable's insulation resistance and current-carrying capacity met Polish standards.

Customer Feedback on GERITEL Wire Manufacturer

The client expressed high satisfaction with the performance and certification compliance of GERITEL solar cables. They specifically noted the excellent performance of our TÜV-certified wires and cables. Furthermore, our prices were highly competitive compared to local suppliers. The client appreciated the rapid response and professional service provided throughout the procurement and technical support process.

Through the successful supply of solar cables for this project, GERITEL Wire once again demonstrates its ability to provide high-performance, internationally certified wire and cable solutions for renewable energy applications. As a manufacturer specializing in high-end cables, GERITEL Wire is committed to supporting the global clean energy transition through products that combine safety, reliability, and sustainability.

If you are looking for a trusted solar cable supplier for your photovoltaic project, contact GERITEL Wire – we will provide you with tailored professional solutions.