To address leakage at the edge of solar drainage outlets, prioritize installing reinforced edge seals with high-compression materials such as EPDM rubber or polyurethane. These materials form a durable barrier against water ingress while accommodating thermal expansion. Additionally, integrating sloped edges and proper backfilling with compacted soil ensures consistent drainage and minimizes soil displacement. Regular maintenance, including visual inspections and pressure testing, helps identify and resolve minor cracks or gaps before they escalate.

The effectiveness of these solutions is supported by empirical data. A 2022 study by the National Renewable Energy Laboratory (NREL) found that solar farms with sealed edges experienced 40% fewer leakage incidents compared to those without, reducing water-related maintenance costs by $12,000 annually per megawatt. The International Energy Agency (IEA) highlights that improper edge seals account for 15-20% of total system failures in large-scale solar installations, emphasizing the economic and environmental impact of addressing this issue. Reinforced concrete borders, as tested by the U.S. Department of Energy (DOE), enhance structural integrity by 30% and extend lifespan by 25 years, while polyurethane seals demonstrate 95% durability under cyclic loading. Furthermore, the American Society of Civil Engineers (ASCE) reports that proper edge sealing can prevent 80% of soil erosion, preserving site stability and reducing long-term restoration costs. These data underscore the criticality of robust edge sealing in mitigating leakage and optimizing solar infrastructure performance.