Arizona Public Service Company Rate Case


Synapse investigated a number of issues in a rate case: 1) whether Arizona Public Service’s (APS) acquisition of the Sundance Generating Station was prudent; 2) whether the amounts that APS requested for Operating & Maintenance expenditures (“O&M”) for the PWEC Units and the Sundance Plant were reasonable; and 3) the generation and associated costs included in APS’ base rate application. Synapse found that APS’ acquisition of the Sundance Plant was reasonable and prudent. However, we found that the Company’s requested power plant O&M was unreasonably high and should be reduced for both plants. Project completed in February 2006.

Completed February 2006