Paulo Afonso Hydroelectric Complex
Brazilian hydroelectric project

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.
“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.
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.
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.
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.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Paulo Afonso Hydroelectric Complex”, its source revision and the description used here.
- Expand the search: follow Paulo Afonso Hydroelectric Complex primary sources, Paulo Afonso Hydroelectric Complex archive and Paulo research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Paulo Afonso Hydroelectric Complex”?
- Which cited source is closest to the event, object or claim?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
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.