H1 2026 Evaluation
Republic of the Congo Reservoir Transparency
F5Opaque — Ranked #121 out of 167 countries
weight 30%
weight 20%
weight 15%
weight 13%
weight 10%
weight 8%
weight 5%
Primary source evaluated
SNE — Société Nationale d'Electricité (Republic of the Congo)
https://africa-energy-portal.org/aep/country/congo-republicDimension breakdown
Data Availability
20% of total score
The Republic of the Congo operates two significant hydropower reservoirs: Moukoukoulou Dam (750 Mm³, 74 MW, on the Bouenza River, commissioned 1979) and Imboulou Dam (inaugurated May 2011, 120 MW, on the Léfini River). SNE manages these facilities but publishes no reservoir water levels, storage volumes, or inflow data on any public platform. Government concession agreements for both dams were updated in 2023–2024, confirming continued operation, but no public data disclosure accompanies this regulatory framework.
Technical Accessibility
15% of total score
SNE has no known public data portal, API, or bulk download service for reservoir operations. The Africa Energy Portal aggregates country-level electricity capacity statistics but does not carry operational reservoir level data. The Congolaise des Eaux (LCDE), responsible for urban water supply, similarly has no public data infrastructure.
Coverage
30% of total score
Moukoukoulou and Imboulou together represent the entirety of the country's significant hydroelectric storage. A third smaller facility at Djoué is run-of-river. Neither major reservoir is covered by any public monitoring publication. New dam construction planned for 2025 onward (Liouesso concession signed March 2024) has not yet produced storage data.
Historical Depth
13% of total score
Some historical data on Moukoukoulou is available in ANDRITZ Hydro technical records and in academic studies of Congo Basin hydrology (e.g., Nature Communications Earth & Environment, 2023), but these are externally sourced, not published by Congo national authorities. No national historical time series is publicly accessible.
Update Frequency
10% of total score
No regular publication cycle exists. The 2023–2024 concession renewals for Imboulou and Moukoukoulou establish an operational framework but impose no public reporting requirement visible in available documentation. There is no evidence of any periodical reservoir bulletin or release.
Methodological Transparency
8% of total score
No public documentation of monitoring methodology, measurement standards, or data quality control from SNE or the government. Concession agreement texts are not publicly available in full.
Language and Usability
5% of total score
French is the sole official language and any future data publication would be in French, which is broadly accessible internationally. A modest score reflects this potential accessibility advantage, acknowledging that no data currently exists to access.
Evaluator notes
Congo-Brazzaville has meaningful reservoir infrastructure — Moukoukoulou (750 Mm³) and Imboulou are material storage assets with a combined installed capacity of 194 MW — but near-zero public data transparency. The 2023–2024 concession renewals for both major dams (plus Liouesso in March 2024) signal a structural reorganization of the electricity sector, which could in principle introduce reporting requirements under international lender conditionality, but no transparency obligations have materialized in any public data release as of mid-2026. The country scores marginally above the absolute RTI floor because it has genuine, well-documented reservoir storage assets referenced in international databases and academic literature, even though their operational data is not disclosed. This distinguishes it from countries where no reservoirs exist at all. Future evaluations should monitor whether the new concession framework produces any mandatory hydrological reporting.
Evaluated by Jaime Delgado · 2026-09-15 · Methodology v1.3.0