Sunir Completes Major Upgrade Of Tanzania’s Mtera Substation To Boost Grid Reliability

Iranian energy and water engineering firm Sunir has completed a major upgrade of the Mtera substation in central Tanzania, a key component of the country’s national power grid. The project, carried out under an engineering, procurement, and construction (EPC) contract, focused on modernizing the 220/33kV facility, which plays a critical role in the transmission of electricity generated from the region’s hydroelectric resources.

The Mtera substation is an essential link for the 80MW Great Ruaha III hydroelectric power plant, operated by the state-owned Tanzania Electric Supply Company (Tanesco). This plant harnesses the waters of the Great Ruaha River to produce electricity and manage water resources effectively. With the completion of the upgrade, the substation is expected to deliver more reliable and efficient power distribution, reduce technical losses, and strengthen the stability of the regional energy supply.

Sunir’s involvement in the project highlights the growing role of international partners in supporting Tanzania’s energy infrastructure. The EPC contract included the supply and installation of advanced electrical equipment, as well as the integration of modern systems capable of meeting the demands of a developing grid. This upgrade ensures that the Mtera substation, part of one of the country’s older hydroelectric schemes, can continue to function effectively and support broader energy goals.

Tanzania has been actively seeking to modernize its aging transmission and distribution networks to meet the rising industrial and residential electricity demand. Upgrades like the one at Mtera are critical to achieving a more resilient and reliable energy system. By reinforcing strategic nodes of the national grid, the government aims to provide a consistent power supply, which is essential for economic growth and improving living standards across the country.

The completion of the project marks an important milestone for Tanesco as it works toward universal electricity access and supports the country’s industrialization ambitions. Strengthening infrastructure at key points like the Mtera substation not only ensures better service to existing consumers but also positions Tanzania to handle future energy needs more efficiently. The project demonstrates how collaboration with international engineering firms can help advance national energy objectives and promote sustainable development in the country.

Overall, the Mtera substation upgrade reflects Tanzania’s commitment to improving its power infrastructure and underscores the importance of strategic international partnerships in enhancing the performance and reliability of its electricity network.