Construction Methodology
During the LV–MV trenching works, a carefully compacted stabilised‑sand layer delivers mechanical protection. Low‑voltage and medium‑voltage power cables are installed in parallel runs with calibrated spacing to safeguard thermal performance across the electrical network. These measures establish a resilient electrical backbone connecting more than 215 000 PV modules to the grid‑connection infrastructure.
Quality and Environmental Assurance
A rigorous quality‑assurance programme governs every stage of the LV-MV trenching works, ensuring compliance with execution standards and regulatory requirements. Depth gauges systematically confirm the thickness of the stabilised‑sand bedding, while optical‑level checks validate that the trench grade remains within design tolerances. High‑resolution, time‑stamped photographs taken at key stages document conductor alignment, phase separation and burial depth, providing full traceability against the applicable IEC and EN requirements. Upon completion of civil works, each circuit undergoes a comprehensive series of electrical tests—including insulation‑resistance measurement, continuity and polarity verification, sheath‑integrity inspection and very‑low‑frequency withstand testing—to confirm operational integrity before energisation.Environmental stewardship remains integral to the methodology. Topsoil is stripped and stored separately to preserve nutrient content and soil structure, then reinstated in its original horizons immediately after laying. This allows neighbouring farmland to resume productive use without delay.
Project Outlook
Production rates continue to meet target, keeping the LV–MV trenching works on the critical path for mechanical completion in Q3 2025. By coupling precision civil execution with standards‑compliant cable testing, Ostenweg reinforces its commitment to delivering renewable‑energy infrastructure safely, transparently and on schedule.