Nov 29 - Fitch Ratings has assigned a 'BBB' rating to American Electric Power Company's (AEP) $850 million issuance of senior unsecured notes. The notes will be issued in five-year and 10-year tranches. The $550 million, 1.65% five-year series E notes will mature on Dec. 15, 2017. The $300 million, 2.95% 10-year series F notes will mature on Dec. 15, 2022. The Rating Outlook is Stable. Proceeds from the issuance will be used for general corporate purposes. Such purposes include the redemption of AEP's $242.775 million, 5.25% senior unsecured series D notes due June 1, 2015 and $315 million, 8.75% junior subordinated debentures due March 1, 2063. The issuance is expected to close on Dec. 3, 2012. Key rating factors for AEP include: --AEP's regulatory and geographic diversification from ownership of electric utilities with operations in 11 states; --Generally balanced regulatory environments; --Challenges associated with the transition to market-based rates for power in Ohio; --Exposure to federal environmental regulation that will result in increased expenditures to many of AEP's coal-fired electric generation plants and the retirement of older, less efficient plants. Regulatory and Geographic Diversification: AEP benefits from its ownership of eight regulated electric utilities. The utilities have operations in 11 states, providing regulatory and geographic diversification. AEP's combination of electric utilities that are exposed to different operating environments helps provide some stability to consolidated cash flows. Low-Cost Operations: AEP and its utilities have a favorable competitive position due to their ownership of low-cost, coal-fired electric generation plants. AEP's utilities are able to keep their fuel costs low through at-cost coal delivery contracts with affiliated company AEP River Operations LLC (not rated), a wholly owned AEP subsidiary that also barges agricultural products, coal, construction materials, and other products to third parties. Environmental Regulatory Concerns: AEP's integrated utilities are exposed to environmental regulation, which is a concern for credit quality. The AEP family of utilities operates the largest coal-fired electric generation fleet in the U.S. AEP expects the pending implementation of various environmental regulations to result in roughly $6 billion-$7 billion of capex through 2020, along with the retirement of more than 5,000 MW of older, less-efficient, coal-fired electric generation plants. Fitch would expect the utilities to be able to recover their environmental capital spending in a timely manner given the various environmental cost recovery mechanisms allowed by the regulatory commissions in AEP's states of operation. The expected timely recovery of these costs mitigates the concerns associated with such large capital outlays. Financial Profile: Fitch expects AEP's EBITDA to interest coverage to average more than 4.0x and FFO to debt to average around 18%. Significant cash contributions in recent years to the company's pension plan have shored up the funding level of AEP's pension plan and should mitigate the need for large cash contributions during the next few years. AEP's liquidity position is solid, with the company's $1.5 billion credit facility maturing in June 2015 and $1.75 billion credit facility maturing in June 2016. Ample amounts are available under these facilities, which back up a commercial paper program that is used to support short-term needs at the utilities not funded by the internal money pool. Rating Triggers: A positive rating action on AEP is unlikely given the decreasing cash flows at the company's largest utility subsidiary, Ohio Power Company (OPCo). The weakening financial profile at OPCo is associated with the Public Utility Commission of Ohio (PUCO)-mandated transition to market-based pricing for power in Ohio. A negative rating action on AEP could occur if Fitch's forecasted FFO to debt ratio for AEP were to drop below 15% over a multi-year period. Fitch currently rates AEP as follows: --Long-term Issuer Default Rating (IDR) 'BBB'; --Senior unsecured debt 'BBB'; --Junior subordinated debt 'BB+'; --Short-term IDR 'F2'; --Commercial paper 'F2'. Following redemption of AEP's $315 million, 8.75% junior subordinated debentures, Fitch will withdraw AEP's 'BB+' junior subordinated debt rating.