Uganda Reservoir Transparency

Uganda's water data landscape is fragmented. Lake Victoria water levels at Jinja Pier are monitored by the NBI Hydromet network and partially accessible via nilebasin.org, but this is a transboundary resource rather than a national government publication. UEGCL does not publish reservoir storage volumes for Nalubaale, Kiira, Isimba, or Karuma on its website. Operational coordination among dam operators via the Nile Cascade Committee (UCOLD) uses an internal Google Sheets platform not accessible to the public. The WEIS portal (weis.mwe.go.ug) offers surface water level data but requires user registration, limiting de-facto public availability. Karuma and Isimba are run-of-river with negligible live storage, reducing the relevance of storage data for those facilities. No single authoritative, freely accessible, up-to-date dashboard for national reservoir storage exists.

No public REST API or machine-readable open data feed for reservoir or water level data was identified from any Ugandan government source. The WEIS and WEMIS portals require registration before data can be accessed, precluding anonymous programmatic use. The NBI Nile Information System (nileis.nilebasin.org) is a regional platform with no documented public API for Uganda-specific storage data. DAHITI (dahiti.dgfi.tum.de) provides free Lake Victoria water levels via satellite altimetry after a short registration, but it is a German academic service rather than a Ugandan government offering. ERA and UEGCL publish generation statistics in annual PDF reports only. Bulk CSV or JSON downloads of hydrological time series are not advertised by any official Uganda source.

Conservative coverage estimation applied 2026-05-29. Uganda's practical storage capacity is dominated by Lake Victoria, operated as a regulated reservoir via the Nalubaale/Kiira dam complex at Jinja. Water levels for Lake Victoria are partially accessible from NBI Hydromet and satellite sources, but no Ugandan government portal publishes current storage volumes for the Nalubaale-Kiira system. Isimba (183 MW, 2019), Karuma (600 MW, 2023) and Bujagali (250 MW) are run-of-river HPPs with negligible live storage and no public data. Conservative coverage = 25 (down from 32) reflects that the only publicly inferable storage signal is Lake Victoria level via NBI/DAHITI rather than a Ugandan government publication, that UEGCL and NEMA publish nothing operational for the Nalubaale-Kiira complex, that WEIS requires registration thereby gating public reach, and that smaller multipurpose and water-supply reservoirs (NWSC) receive no public monitoring at all.

Uganda holds a long hydrological record institutionally: DWRM gauging data extends back to 1947, and a Consolidated Hydrological Yearbook covering 1978–2014 has been published by MWE. Lake Victoria water level records extend to the 1950s at Jinja Pier and from 1992 via DAHITI satellite altimetry. However, these historical datasets are not freely downloadable as machine-readable files from a government portal; access to DWRM data requires direct contact with the agency, with fees applicable to some products. UBOS has published annual Water Accounts following SEEA-Water standards since 2022, providing a surface water accounting framework, but these do not include dam-level storage time series. Historical richness exists in institutional archives but is poorly disseminated online.

No publicly accessible near-real-time dashboard for reservoir storage exists in Uganda. The NBI Hydromet network monitors Lake Victoria at Jinja Pier and 14 other stations in Uganda, with data feeding into the regional system, but public dissemination frequency is unclear. WEIS claims near-real-time data collection (16 automatic water level stations installed) for registered users, but public access requires login. UEGCL publishes annual reports; ERA compiles generation statistics annually. The LVBC Water Information System (LVB-WIS), operationalised in February 2026, may eventually improve public update frequency for Lake Victoria data but is still in its roll-out phase. In practice, the best a public user can access is satellite-derived Lake Victoria levels with a 1–2 day lag via DAHITI — a non-government service.

Uganda's DWRM operates a monitoring network that follows WMO hydrological standards in principle, and some technical documentation appears in published sector performance reports and donor-funded project documents. However, no dedicated public methodology document for reservoir or lake level measurement is readily available online from the Ugandan government. Dam safety guidelines have existed since 2017 in draft form; formal dam safety regulations were still under development as of late 2024, with ERA and DWRM working with Norwegian (NVE) consultants. The UCOLD Nile Cascade Committee coordinates monitoring of the White Nile cascade but its methodology and data standards are not published for external users. The absence of formalised, publicly accessible measurement protocols keeps this score low.

English is Uganda's official language of government, and all key institutional websites — MWE, UEGCL, DWRM, ERA, UCOLD, LVBC, and NBI — operate primarily in English. Published reports, sector performance reviews, annual reports, and the WEIS/WEMIS portal interfaces are all in English. This is a genuine advantage over many peer countries and means that any data made publicly available is immediately accessible to international users without translation barriers.