Open pit coal mining near electrical power lines presents distinct geotechnical challenges and regulatory demands, particularly under Section 17.6 of South Africa's Mine Health and Safety Act. This section requires a minimum 100 m buffer between mines and structures such as power lines unless deemed safe at closer distances. To balance safety with economic considerations, a detailed geotechnical risk assessment was performed to reduce this distance without compromising safety. This practical study is pivotal in optimising coal extraction while ensuring the integrity and safety of nearby power lines through well-considered geotechnical design. Employing empirical methods based on geological and geotechnical data, the study proposes a suitable geotechnical design, incorporating slope stability, ground control, and real-time monitoring to evaluate risks. This approach not only ensures compliance with regulatory standards but also enhances economic feasibility by increasing the minable coal resources. The findings highlight the critical role of comprehensive geotechnical design in allowing mining operations to coexist safely with essential power infrastructure. This research provides valuable insights for engineers, regulators, and industry stakeholders, establishing a framework for responsible mining in complex geotechnical environments. The recommendations from this study also guide future mining projects facing similar challenges, promoting sustainable and compliant mining practices.