APS offers several rate plan options for residential customers. Flat-rate plans charge the same per-kWh price regardless of usage or time. Tiered plans charge more as you use more. Time-of-use (TOU) plans charge different rates based on when you use electricity. Some utilities also offer EV-specific plans with very low overnight charging rates.
The best APS rate plan depends on your usage patterns. If your usage is consistent throughout the day, a flat rate may be simplest. If you can shift usage to evenings and weekends, a TOU plan could save 15-25%. High-usage households may benefit from TOU plans that avoid expensive upper tiers. Analyze your usage data before switching.
You can switch APS rate plans through their website, app, or by calling customer service. Most switches take effect at the start of your next billing cycle. There's typically no fee to switch, and you can switch back if the new plan doesn't work for you. APS may offer a rate comparison tool to estimate your costs under different plans.
When comparing APS rate plans, use at least 12 months of usage data to account for seasonal variations. Don't just compare the advertised rate — calculate your total annual cost under each plan. Consider whether you can realistically shift your usage patterns for TOU savings. Our sanity check tool can help identify if you're on the optimal plan.
Compare your rate against other APS customers.
No upload required. Enter two numbers from your bill to see if it falls within typical ranges for APS.
Most utility bills are calculated correctly.
This quick check helps you understand if your bill stands out from typical ranges. It cannot determine accuracy without a full bill review.
The "Total Amount Due" on your bill
Usually labeled "Total kWh" or "Usage"
Disclaimer: This tool provides a rough estimate based on typical residential rates. It does not account for fixed charges, demand charges, time-of-use pricing, taxes, fees, or other bill components. Results are for informational purposes only and should not be considered financial or legal advice. We cannot determine billing accuracy without reviewing your full bill.
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