SAO PAULO, May 14 (Reuters) - Brazilian power firm

Eletrobras, Latin America's largest utility by

generating capacity, posted on Wednesday a 354 million reais

($62.8 million) net loss for the first quarter, compared to a

331 million-real profit a year earlier.

Adjusted earnings before interest, taxes, depreciation and

amortization (EBITDA), adapted for local regulatory rules, came

in at 5.38 billion reais in the three-month period to the end of

March, down 4.1% from a year earlier.

($1 = 5.6406 reais)