UPDATE 4-Groups deliver proposals for EDP Brazil's hydroelectric plants -source

(Adds AES comments)

SAO PAULO, June 14 (Reuters) - Brazilian energy companies Eneva SA and Votorantim Energia are among groups interested in acquiring three hydroelectric plants EDP Energias do Brasil put up for sale, one source with knowledge of the matter said on Monday.

The source added that around 10 groups delivered initial proposals for the assets. The investment banking unit of Banco Bradesco SA is managing the process.

Brazilian newspaper Valor Economico reported the deal earlier on Monday, also mentioning AES Brasil Energia SA as a bidder. In a statement to Reuters, AES Brasil said it has not delivered an offer.

EDP Brasil is aiming to raise roughly 4.5 billion reais ($880 million) from the sale. The plants are located in the Brazilian states of Espirito Santo and Amapa, with a total capacity of 800 megawatts.

Votorantim, Eneva and Bradesco did not immediately respond to a Reuters request for comment. EDP Energias do Brasil said it “does not comment on market rumors.”

Portugal’s EDP had discussed a deal involving Latin America two years ago with its shareholder China Three Gorges Corp.

The Chinese company has been reducing its stake in EDP and sold 2.5% of the company last January.

$1 = 5.1142 reais Reporting by Tatiana Bautzer, additional reporting by Carolina Mandl; editing by Louise Heavens, Steve Orlofsky and Dan Grebler