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Paulo Afonso Hydroelectric Complex

Brazilian hydroelectric project

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 15, 2025
Entity authorityQ1142374 ↗
Source-derived summary

The Paulo Afonso Hydroelectric Complex (Complexo Hidrelétrico de Paulo Afonso), also known as the Paulo Afonso Complex, is a system of three dams and five hydroelectric power plants on the São Francisco River near the city of Paulo Afonso in Bahia, Brazil. The complex exploits an 80-metre (260 ft) natural gap on the river, known as the Paulo Afonso Falls. Constructed in succession between 1948 and 1979, the dams support the Paulo Afonso I, II, III, IV and Apollonius Sales (Moxotó) power plants which contain a total of 23 generators with an installed capacity of 4,279.6 megawatts (5,739,000 hp).

PA I was the first large power plant constructed in Brazil and the complex constitutes the densest area of dams in Brazil. The complex provides electricity to areas in northeastern Brazil and is the main tourist attraction in the region.

Background and history

On January 23, 1913, the 1.1 MW Angiquinho Hydroelectric Plant, built by industrialist Delmiro Gouveia, was the first use of the Paulo Afonso Falls for power production and the first hydroelectric power plant in northeastern Brazil. Construction of the power plant was intended to spur economic growth in the area and soon after another hydroelectric plant was constructed upstream near Petrolândia. By the 1940s Brazil's Ministry of Agriculture recognized the importance of harnessing the São Francisco River for economic development in the semi-arid region. They began to plan the river's development and the Companhia Hidro-Elétrica do São Francisco (CHESF) was formed in 1945. On May 23, 1944, construction on Paulo Afonso I had been authorized with two generators.

Editorial summary

“Paulo Afonso Hydroelectric Complex” enters the record as brazilian hydroelectric project. Crown Archives preserves that source wording while asking what Paulo, Afonso and Hydroelectric can confirm, complicate or overturn.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1948, 1979, 1913, 1945—that can be checked directly. The linked authority record independently contributes the date 1955-01-01. Its strongest next move is a source search built around Paulo, Afonso and Hydroelectric.
Editorial analysis

Why this record matters

“Paulo Afonso Hydroelectric Complex” is worth following because a concise public description often conceals a longer documentary argument. Here, Paulo, Afonso and Hydroelectric provides the most credible route into that argument.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 15, 2025. The linked authority identifier is Q1142374. Authority coordinates are -9.397, -38.202. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1948, 1979, 1913 and 1945.

Critical limits

The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

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Source & attribution

This entry incorporates text from “Paulo Afonso Hydroelectric Complex” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.