ARTHUR ANDERSEN LLP Exhibit (15) To CMS Energy Corporation: We are aware that CMS Energy Corporation has incorporated by reference in its Registration Statements No. 33-29681, No. 33-47629, No. 33-57719, No. 33-57719-01, No. 33-64044, No. 33-60007, No. 33-61595, No. 33-62573 and No. 33-01261 its Form 10-Q for the quarter ended June 30, 1996, which includes our report dated August 9, 1996 covering the unaudited interim financial information contained therein. Pursuant to Regulation C of the Securities Act of 1933, that report is not considered a part of the registration statement prepared or certified by our firm or a report prepared or certified by our firm within the meaning of Sections 7 and 11 of the Act. ARTHUR ANDERSEN LLP Detroit, Michigan, August 9, 1996.