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← Reservoir Transparency Index H1 2026

H1 2026 Evaluation

Dominica Reservoir Transparency

F3

Opaque — Ranked #124 out of 167 countries

Coverage0

weight 30%

Data Availability0

weight 20%

Technical Accessibility0

weight 15%

Historical Depth0

weight 13%

Update Frequency0

weight 10%

Methodological Transparency0

weight 8%

Language and Usability65

weight 5%

Primary source evaluated

DOMLEC — Dominica Electricity Services Ltd

https://www.domlec.dm
✗ No API

Dimension breakdown

Data Availability

20% of total score

0

Coverage is 0 (no national reservoirs >10 hm³ with public data). Quality dimensions for the COVERED subset are therefore 0 by definition. Original notes preserved below: Dominica operates three small run-of-river hydroelectric plants on the Roseau River basin: Laudat (1.24 MW), Trafalgar (3.52 MW), and Padu (1.8 MW), all unmanned and controlled from DOMLEC's System Control Centre at Fond Cole. None of these have significant reservoir storage — they are run-of-river diversion schemes. No public portal publishes storage or flow data. DOMLEC's investor relations section lists annual reports but reservoir-level data does not appear in any publicly accessible document.

Technical Accessibility

15% of total score

0

No public data portal, API, or downloadable dataset of any kind exists for water levels or hydro-generation inputs. DOMLEC's public website focuses on tariffs, outage notices, and corporate governance.

Coverage

30% of total score

0

Methodology v1.3.0 (capacity-weighted). Dominica's hydroelectric system (Laudat, Trafalgar, Padu) is entirely run-of-river with no impoundment storage; total national reservoir capacity above the 10 hm³ threshold is 0 hm³. Covered capacity is 0 hm³. Coverage = round(100 × 0 / 0) = 0 by structural convention (no reservoirs to publish).

Historical Depth

13% of total score

0

No publicly accessible historical water level or flow dataset exists for any DOMLEC facility or Dominican river basin. Annual report hydropower generation figures (GWh) are available going back several years via DOMLEC investor reports, but these are energy output statistics, not storage or inflow data.

Update Frequency

10% of total score

0

No public updates on reservoir or river conditions are published. DOMLEC communicates with the public on outages and billing, not on hydrological conditions.

Methodological Transparency

8% of total score

0

No documentation of measurement methodology, monitoring standards, or data governance for hydro-operational data is publicly available. The CREDP/GTZ river gauging programme that DOMLEC continued from 2003 is referenced in academic literature but its outputs are not published.

Language and Usability

5% of total score

65

DOMLEC and all Dominican government communications are in English, the country's official language. The DOMLEC website is navigable by international users. Score reflects genuine English-language accessibility of the broader utility communications environment.

Evaluator notes

Dominica is a volcanically active, heavily forested island with high annual rainfall (>1,000 mm across most of the island, far higher in the interior), making it one of the most water-rich countries in the Caribbean per capita. Paradoxically, its hydroelectric system is entirely run-of-river: the Laudat, Trafalgar, and Padu plants on the Roseau River cascade divert river flow through penstocks to turbines but impound essentially no storage volume. These are automated, unmanned installations managed from DOMLEC's control centre. There are no significant reservoir impoundments to monitor or disclose. DOMLEC is working toward 100% renewable generation by 2030, with the primary vector being geothermal (Wotten Waven project), not expanded hydropower. The 2024 DOMLEC annual report notes that adverse climatic conditions affected hydropower output, confirming that operational data is collected internally, but no hydrological data of any kind reaches the public domain. Dominica's RTI score reflects this: genuinely water-abundant, genuinely green electricity, but zero public transparency for the data dimension. The score is near-zero across all dimensions other than language_usability because the infrastructure, while real, simply does not generate any publicly visible data stream.

Evaluated by Jaime Delgado · 2026-09-15 · Methodology v1.3.0

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