Arizona Public Service client in Mesa on Schedule E-32 (Large General Service). The renewable energy standard (RES) rider shows $0.00156/kWh but Arizona Corporation Commission Decision 77856 from 2023 suggests it should be lower. APS seems to be over-recovering RES costs by about 12%.
APS renewable energy standard tariff rider - Arizona
Christie - I audit several APS accounts. The RES rider reconciles every December based on actual renewable energy procurement costs. If they over-collected, there should be a credit adjustment.
Arizona has aggressive renewable portfolio standards. 15% by 2025. The costs fluctuate based on renewable energy certificate prices and long-term contracts.
Filed informal complaint with ACC. APS provided detailed cost breakdown showing actual RES costs were $0.001388/kWh vs billed rate of $0.00156/kWh.
What was the outcome Christie? Did APS agree to issue credits for the over-collection?
Yes! APS agreed to credit the difference. Refund was $2,847 plus they lowered the rider to the correct rate going forward.
Great result. These renewable energy riders are becoming more common but utilities don't always get the calculations right initially.
Renewable energy standard riders require careful verification. Always check that billed rates match commission-approved calculations and watch for annual reconciliation adjustments.