Modeling mini-grids for communities in mining regions

This report by Reiner Lemoine Institut in collaboration with Resource Matters presents detailed case studies on how decentralized electrification—particularly solar-powered mini-grids—can provide affordable and sustainable electricity to mining communities in the Democratic Republic of Congo.

It combines satellite mapping, field data, and energy modelling to better understand local electricity demand and identify optimal technical solutions. The study also updates population and demand data used in the Congo Epela platform, strengthening its usefulness for planning electrification across the country.

The project mapped a total of nine villages located in resource-rich decentralized territorial entities (ETDs), including Kapanda, Mamfwe, Lufupa, Fikupa, Debungi, and three sites in Mimbilu, as well as one additional site near Kolwezi. Among these, four villages—Kapanda, Mimbilu I, Debungi, and Mamfwe—were selected for detailed modelling of mini-grid systems based on their accessibility, economic potential, and availability of field data.

The main findings show that solar-based mini-grids, often combined with batteries and limited diesel backup, represent a cost-effective and technically viable solution for electrifying these communities. The analysis highlights significant differences in electricity demand across villages, requiring tailored system designs, but confirms strong solar potential across all sites.

Overall, the report demonstrates that decentralized solutions can play a key role in expanding electricity access in the DRC, provided that planning is adapted to local conditions and supported by accurate data.