This report, “Assessment of APS’s Bill Comparison Web Tool: Methodology and Findings,” was prepared for APS. APS commissioned The Brattle Group to assess the rate recommendations provided by its new bill comparison web tool. The scope of this project was to conduct bill analysis for a representative sample of more than 46,000 residential customers who are eligible to use the APS web tool and independently assess the rate recommendations provided by the APS web tool to each customer in the sample.

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Assessment of APS's Bill Comparison Web Tool: Methodology and Findings