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The standard-offer rates for small generators (qualifying facilities) published by 3 investor-owned utilities we cover in Arizona: Arizona Public Service (APS), Tucson Electric Power (TEP) and UNS Electric. Checked on October 4, 2026.
| Utility | Schedule | Size cap | Rate structure | Effective | Checked on |
|---|---|---|---|---|---|
| Arizona Public Service (APS) | Rate Rider EPR-2, Partial Requirements Service for Qualified Facilities of 100 kW or Less (A.C.C. No. 6214, Revision No. 21); purchase terms in Service Schedule 2 (Terms and Conditions for Energy Purchases from Qualified Cogeneration and Small Power Production Facilities) | Customers with an on-site QF of 100 kW-ac nameplate or less interconnected to APS's distribution grid; QFs larger than 100 kW contract under Decision Nos. 52345 and 77512. | Bill credit for exported energy in $ per kWh, by season (summer = May-October billing cycles, winter = November-April) and by on-peak/off-peak hours of the customer's retail rate (shoulder-peak hours credited at the on-peak rate); separate Non-Firm and Firm rates. | 2024-03-08 | 2026-10-04 |
| Tucson Electric Power (TEP) | Rider-11 (R-11), Partial Requirements Service (PRS) and Purchase Rates for Qualifying Facilities (Third Revised Sheet No. 711) | Published purchase rates apply to QF Customers (generator and load at the same premises) with nameplate capacity 100 kW or less; QFs over 100 kW get individually negotiated contracts under Decision No. 77513. Not available to customers on Net Metering Rider-4. | Short-run avoided cost energy rates in cents per kWh, by season (summer = May-September billing cycles, winter = October-April) and by interconnection voltage (distribution vs. high voltage). Renewable QFs: flat seasonal rate by solar technology profile. Cogeneration QFs: on-peak/off-peak (summer on-peak 2-8 p.m. weekdays; winter on-peak 6-10 a.m. and 5-9 p.m. weekdays). A minimum $25.00 monthly basic service charge applies to QF Customers selling energy. | 2026-06-01 | 2026-10-04 |
| UNS Electric | Qualified Facilities tariffs QF-A (Full Requirements 100 kW or Less, Sheet 804), QF-B (Partial Requirements 100 kW or Less, Sheet 805) and QF-C (Optional Service Over 100 kW, Sheet 806); Fourth Revised Sheets | QF-A and QF-B: QF Customers requiring 100 kW or less (QF-A buy/sell full requirements; QF-B partial requirements; both must take a standard offer rate with a demand charge). Renewable rate tables are stated for QFs with nameplate capacity below 100 kW. QFs over 100 kW contract under Decision No. 77514 (QF-C). | Short-run avoided cost energy rates in cents per kWh, by season (summer = May-October billing cycles, winter = November-April) and by interconnection voltage (distribution vs. high voltage). Renewable QFs: flat seasonal rate by solar technology profile. Cogeneration QFs: on-peak/off-peak (summer on-peak 2-8 p.m. weekdays; winter on-peak 5-9 a.m. and 5-9 p.m. weekdays). QF-A nets monthly kWh and pays the purchase rate only on net deliveries. | 2026-06-01 | 2026-10-04 |
Rates, eligibility and contract terms change: confirm them with the utility or the state utility commission before relying on them.