UPDATE 1-AES, Enel, CPFL among interested in buying Brazil's Celg-D

SAO PAULO, Feb 5 (Reuters) - U.S. power utility AES Corp , Italy's Enel and several Brazilian rivals have shown preliminary interest in buying state-controlled power distributor Centrais Elétricas de Goiás SA (Celg-D), a group organizing the sale and a source briefed on the plan said.