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PNW > SEC Filings for PNW > Form 8-K on 24-Jan-2014All Recent SEC Filings




Other Events

Item 8.01 Other Events.

As we have previously disclosed, on September 8, 2011, a series of transmission and generation disruptions occurred across the systems of several utilities that resulted in outages affecting portions of southern Arizona, southern California and northern Mexico. A total of approximately 7,900 MW of firm load and 2.7 million customers were reported to have been affected. On May 1, 2012, the Federal Energy Regulatory Commission ("FERC") and the North American Electric Reliability Corporation ("NERC") issued a joint report with their analysis and conclusions as to the causes of the events and recommendations to help industry operators prevent similar outages in the future. The joint report did not address potential reliability violations or an assessment of responsibility of the parties involved.

On January 22, 2014, following non-public preliminary investigations, the FERC Staff issued a Notice of Alleged Violations naming six entities involved in the event, including APS. FERC Staff alleges that each of the named entities violated varying numbers of NERC Reliability Standards. APS is alleged to have violated seven Reliability Standard Requirements. The allegations of violations are preliminary determinations by FERC Staff and do not constitute findings by FERC itself that any violations have occurred.

APS intends to work with FERC Staff to resolve the matter. If violations of the Reliability Standards are ultimately determined to have occurred, FERC has the legal authority to assert a possible fine of up to $1 million per violation per day that a violation is found to have been in existence. APS cannot predict the timing or financial or operational impacts that may result from the Staff's Notice of Alleged Violations, including any payments that may result from a settlement if one is reached, or any claims that may be made as a result of the outages.

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