EXHIBIT 15 August 18, 2003 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Commissioners: We are aware that our report dated August 18, 2003 on our review of consolidated interim financial information of FirstEnergy Corp. (the "Company") as of and for the three and six months ended June 30, 2003 and included in the Company's quarterly report on Form 10-Q for the quarter then ended is incorporated by reference in its Registration Statements on Form S-3 (Nos. 333-48587, 333-102074 and 333-103865) and Form S-8 (Nos. 333-48651, 333-56094, 333-58279, 333-67798, 333-72764, 333-72766, 333-72768, 333-75985, 333-81183, 333-89356 and 333-101472). Very truly yours, PricewaterhouseCoopers LLP 156 EXHIBIT 15 August 18, 2003 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Commissioners: We are aware that our report dated August 18, 2003 on our review of consolidated interim financial information of Ohio Edison Company (the "Company") as of and for the three and six months ended June 30, 2003 and included in the Company's quarterly report on Form 10-Q for the quarter then ended is incorporated by reference in its Registration Statements on Form S-3 (Nos. 33-49413, 33-51139, 333-01489 and 333-05277). Very truly yours, PricewaterhouseCoopers LLP 157 EXHIBIT 15 August 18, 2003 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Commissioners: We are aware that our report dated August 18, 2003 on our review of interim financial information of Pennsylvania Power Company (the "Company") as of and for the three and six months ended June 30, 2003 and included in the Company's quarterly report on Form 10-Q for the quarter then ended is incorporated by reference in its Registration Statements on Form S-3 (Nos. 33-62450 and 33-65156). Very truly yours, PricewaterhouseCoopers LLP 158 EXHIBIT 15 August 18, 2003 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Commissioners: We are aware that our report dated August 18, 2003 on our review of consolidated interim financial information of Pennsylvania Electric Company (the "Company") as of and for the three and six months ended June 30, 2003 and included in the Company's quarterly report on Form 10-Q for the quarter then ended is incorporated by reference in its Registration Statements on Form S-3 (Nos. 333-62295, 333-62295-01 and 333-62295-02). Very truly yours, PricewaterhouseCoopers LLP 159