Arizona solar policy planning
Solar savings depend on two values: electricity you avoid buying from the grid and exported solar energy your utility credits back. This page explains how SolarCalcNow models export value as a planning assumption, not a final utility-specific tariff.
Source coverage: Arizona Public Service (APS)
APS offers RCP and EPR-2 export riders. RCP depends on the rate assigned at application; EPR-2 varies by season and time period. Use your agreement; SRP and TEP are separate territories.
Read the primary source — APS RCP / EPR-2Source checked: · Next review due: 2026-10-04
10%, 35% and 100% of retail are author-selected sensitivity scenarios, not this utility's tariff. Same inputs: 900 kWh/month, 100% annual energy target, 55% direct solar use, low shade, 400 W panels. Change only export value to see its effect on energy savings and gross-cost payback.
| Export / retail | Annual energy savings | Simple gross-cost payback |
|---|---|---|
| 10% | $975 | 11.4 years–17.0 years |
| 35% | $1,160 | 9.6 years–14.3 years |
| 100% | $1,639 | 6.8 years–10.1 years |
Annual totals cannot reproduce hourly export prices, monthly credit expiry, demand charges or utility-specific minimum bills. Match the utility and interconnection date before selecting a scenario. For an actual proposal, request a bill simulation under that tariff.
After checking export value, compare the same assumptions against installer proposals and incentive claims.