During 2021, TETRA Bitola successfully designed and completed the full procurement, delivery, and installation of hydrotechnical equipment for drainage wells for the needs of the energy complex REK Bitola. This project included the equipment of protective drainage wells intended for monitoring and lowering groundwater levels in open-pit mining zones, ensuring stable and safe conditions for uninterrupted coal extraction.

The implemented systems feature high-efficiency submersible well pumps from the renowned German manufacturer WILO (models Actun ELECTRO-SUB B34 and Actun OPTI-MS), specially designed for long-term heavy-duty operation in demanding industrial and mining conditions. The pumps are connected via high-quality GRE (Glass-fiber Reinforced Epoxy) pipelines manufactured by Dutch company FPI, offering exceptional resistance to corrosion, high mechanical strength, and extended operational lifespan in aggressive environments.

Beyond the pumping and piping hardware, the scope included fully automated electrical control panels equipped with advanced protective relays, borehole water level monitoring probes, and remote control systems, ensuring maximum operational reliability and energy efficiency across the entire well field infrastructure.