Business Context and Reporting Period
This Form 8-K is a combined current report filed by Pinnacle West Capital Corporation and its subsidiary, Arizona Public Service Company (APS), on May 2, 2006. The filing addresses regulatory actions by the Arizona Corporation Commission (ACC) regarding emergency interim rate increases for APS to recover under-collected fuel and purchased power costs.
Key Financial Metrics and Regulatory Orders
- Emergency Interim Rate Increase: The ACC approved an interim adjustor under the Power Supply Adjustor (PSA) effective May 1, 2006, resulting in an approximate 8.3% retail rate increase.
- Cost Recovery Target: The interim adjustor is designed to recover approximately $138 million of fuel and purchased power costs during 2006.
- Combined Rate Impact: When combined with a previously approved PSA surcharge (0.7% increase), the total rate increase is approximately 9.0%, targeting the recovery of approximately $149 million in costs for 2006.
- Deferral Cap: The order affirms APS's ability to defer fuel and purchased power costs above the prior annual cap of $776.2 million until the general rate case is decided.
- 2005 Deferral Recovery: A temporary rate increase of approximately 0.7% was approved to recover $15.3 million of 2005 PSA deferrals, effective May 2, 2006.
Material Changes and Conditions
The primary material change is the regulatory approval of rate increases to address higher annual fuel and purchased power costs. The filing notes that amounts collected through the retail rate increase remain subject to a prudency review at the appropriate time. Additionally, all unplanned Palo Verde outage costs for 2006 are required to undergo a prudence audit by the ACC Staff.
Outlook, Management Commentary, and Risks
- Prudency Review Risk: Future recovery of costs is contingent upon a prudency review and a specific prudence audit for unplanned Palo Verde outage costs.
- Regulatory Recommendations: The ACC encouraged parties to propose modifications to the PSA to address timing issues when deferrals are large and growing.
- Strategic Direction: The ACC encouraged APS to diversify resources through large-scale, sustained energy efficiency programs and the use of low-cost renewable energy resources as a hedge against high fossil fuel costs.
Investor Verification Checklist
- Verify the final outcome of the prudence audit regarding unplanned Palo Verde outage costs for 2006.
- Monitor the status of the general rate case to determine the permanent resolution of fuel and purchased power cost deferrals.
- Review future filings for proposed modifications to the Power Supply Adjustor (PSA) mechanism as encouraged by the ACC.
- Confirm the actual collection amounts against the targeted $149 million recovery figure during the 2006 fiscal year.