CHESF
| Subsidiary | |
| Industry | Utilities |
| Founded | 1945 |
| Headquarters | Recife, Brazil |
Key people | Dilton da Conti Oliveira (CEO) |
| Products | Electricity generation |
Number of employees | 4,427 |
| Parent | Eletrobras |
| Website | www.chesf.gov.br |
CHESF (Companhia Hidro-Elétrica do São Francisco; São Francisco's Hydroelectric Company) generates and transmits electric power from hydroelectric plants to all of the cities in northeast of Brazil.
The main source of energy is the São Francisco River.