Potomac Electric Power Co. reported yesterday that earnings for the quarter ended Dec. 31, 1984, climbed about 8 percent to $29.1 million (53 cents a share) from $26.9 million (49 cents).

Pepco said annual earnings rose about 20 percent to $168.1 million ($3.23), from $140 million ($2.66).

''In 1984, the company achieved a 21.4 percent improvement in earnings per share from $2.66 to $3.23, while at the same time the cost of electricity to our residential customers decreased 4.5 percent, from 6.73 cents per kilowatt-hour in 1983 to 6.43 cents for 1984,'' said Pepco Chairman W. Reid Thompson.

Thompson said the decrease in customer prices reflects lower fuel rate charges becasuse of stable fuel prices and favorable energy transactions by the firm.

Reynolds Metals of Richmond, the nation's second-largest aluminum producer, reported that fourth-quarter earnings increaed more than 300 percent ot $38.4 million ($1.77), compared with $12.3 million (55 cents) in the same peroid last year.

Reynolds said that annual earnings climbed to $137.3 million ($6.36), compared with a net loss of $99.1 million ($5.15) during the same period in 1983.

Annual sales rose 12 percent to $3.7 billion, compared with $3.3 billion last year.

Chairman David Reynolds cited the company's ongoing cost-reduction efforts and its diverse mix of products as reasons for the strong earnings recovery in 1984.

Vie de France Corp., a nationwide producer of French breads and croissants, said yesterday that net income for the second quarter ended Dec. 15, 1984, increased about 34 percent to $1.58 million (15 cents) from $1.189 million (12 cents) in the same period last year.

Company officials attributed the increase in earnings to expanded sales of croissants to restaurant chains, continued growth of the firm's in store bakery program and sale of frozen croissants in super-markets, which began last May.

Sales for the second quarter rose about 26 percent to $15.5 million, compared with $12.3 million in the same period in 1983. Pepco Says Profits Rise 8% in 4th Quarter By Sari Horwitz Washington Post Staff Writer

Potomac Electric Power Co. reported yesterday that earnings for the quarter ended Dec. 31, 1984, climbed about 8 percent to $29.1 million (53 cents a share) from $26.9 million (49 cents).

Pepco said annual earnings rose about 20 percent to $168.1 million ($3.23), from $140 million ($2.66).

''In 1984, the company achieved a 21.4 percent improvement in earnings per share from $2.66 to $3.23, while at the same time the cost of electricity to our residential customers decreased 4.5 percent, from 6.73 cents per kilowatt-hour in 1983 to 6.43 cents for 1984,'' said Pepco Chairman W. Reid Thompson.

Thompson said the decrease in customer prices reflects lower fuel rate charges becasuse of stable fuel prices and favorable energy transactions by the firm.

Reynolds Metals of Richmond, the nation's second-largest aluminum producer, reported that fourth-quarter earnings increaed more than 300 percent ot $38.4 million ($1.77), compared with $12.3 million (55 cents) in the same peroid last year.

Reynolds said that annual earnings climbed to $137.3 million ($6.36), compared with a net loss of $99.1 million ($5.15) during the same period in 1983.

Annual sales rose 12 percent to $3.7 billion, compared with $3.3 billion last year.

Chairman David Reynolds cited the company's ongoing cost-reduction efforts and its diverse mix of products as reasons for the strong earnings recovery in 1984.

Vie de France Corp., a nationwide producer of French breads and croissants, said yesterday that net income for the second quarter ended Dec. 15, 1984, increased about 34 percent to $1.58 million (15 cents) from $1.189 million (12 cents) in the same period last year.

Company officials attributed the increase in earnings to expanded sales of croissants to restaurant chains, continued growth of the firm's in store bakery program and sale of frozen croissants in super-markets, which began last May.

Sales for the second quarter rose about 26 percent to $15.5 million, compared with $12.3 million in the same period in 1983.