Edison International

(EIX) - Get Report

reported consolidated first-quarter earnings that more than doubled from a year ago, partly as a result of improved operating results from Mission Energy Holding Company's independent power business.

The company earned 61 cents a share in the first quarter, up from 30 cents a year ago. Edison also attributed the increased earnings to gains from Edison Capital's investment in the Emerging Europe Infrastructure Fund and higher revenue at Southern California Edison.

Revenue totaled $2.4 billion. A year ago, the company had revenue of $2.1 billion.

Edison, based in Rosemead, Calif., said Monday that "we had improved results across the entire company. Our independent power company particularly benefited from higher energy prices in the Midwest and Eastern wholesale power markets."