REGIDESO will build a 15 MW solar plant to ease Mbuji-Mayi’s water shortages, its director general said at the Makutano forum on November 26, adding that work begins in January 2026.
He was responding to a resident who said she receives water only once a week. He explained that the project aims to fix power supply shortfalls that regularly disrupt the city’s water distribution.
REGIDESO currently depends on electricity from the national utility SNEL, which itself relies on power from the Tubi-Tubidi hydroelectric plant owned by the mining company SACIM. Frequent failures at the plant cause repeated outages that prevent uninterrupted drinking water supply. This persists even though Mbuji-Mayi’s 500 km pipeline network, considered one of the most modern in the country, is in good condition.
The utility says it has generators, but current tariffs do not cover their sustained operation. “The tariff is lower than production costs. We have raised this with the government for more than three years. We cannot produce water at $1.15 per cubic meter and sell it to households for 0.25 cents,” Tshilumba said.
He added that technical assessments for the photovoltaic plant are complete and that the project will be financed by German cooperation. Radio Okapi earlier reported that Germany had announced an initial 8 MW solar project for REGIDESO in 2022 to reduce its dependence on SNEL. The increase to 15 MW may reflect updated demand estimates, with Tshilumba saying the city now needs between 12 and 13 MW for normal service.
REGIDESO also plans to replicate this self-generation model in other provinces through its subsidiary RégiEnergies, created between 2023 and 2024. Its mission is to supply electricity in areas where SNEL’s service is insufficient or absent, particularly in remote regions. The move revives part of REGIDESO’s historical mandate. When the utility was created in 1939, it handled both water and electricity distribution until the government transferred the electricity portfolio to SNEL in 1978.
Timothée Manoke
