Annual, 1984-; Biennial; Vol. 12-; Vols. for 1978- cover statistical and analytical data through 1976-; Prepared by North Carolina Utilities Commission. Finance, Statistics, Budget & Planning Division.
Cover title.; "December 2006."; Supplemented by : Written public comments on the La Capra Associates, Inc. study: Analysis of a renewable portfolio standard for the state of North Carolina.; Includes bibliographical references.