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UNS Electric, Inc.: what it publishes for small generators (qualifying facilities) under PURPA, field by field, with the source for each. Checked on October 4, 2026.
When this may change: At least every two years: each tariff says the QF Purchase Rates will be updated and filed for Commission approval not less than every two years.
Rates, eligibility and contract terms change: confirm them with the utility or the state utility commission before relying on them.
| Schedule | 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 Note: Decision 81792 states the purchase rates are the same on all three tariffs. ACC docket filing is a scanned image with an OCR text layer; quotes are from the OCR text and the values were also checked against the page image. Source: docket.images.azcc.gov: E000051684.pdf · also: docket.images.azcc.gov: 0000216617.pdf · checked 2026-10-04 | |||||||||||||||||||||
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| Docket or order | ACC Decision No. 81792 (Open Meeting May 7, 2026), Docket No. E-04204A-18-0087, approving UNSE's December 30, 2025 application (revised tariffs filed March 6, 2026); compliance tariffs filed May 20, 2026, stamped approved by Staff on June 15, 2026. Note: ACC docket filing is a scanned image with an OCR text layer; quotes are from the OCR text and the values were also checked against the page image. Source: docket.images.azcc.gov: E000051684.pdf · also: docket.images.azcc.gov: 0000216617.pdf, docket.images.azcc.gov: E000052264.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Effective date | 2026-06-01 Note: ACC docket filing is a scanned image with an OCR text layer; quotes are from the OCR text and the values were also checked against the page image. Source: docket.images.azcc.gov: E000051684.pdf · also: docket.images.azcc.gov: E000052264.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Next update | At least every two years: each tariff says the QF Purchase Rates will be updated and filed for Commission approval not less than every two years. Note: Prior updates: Decision No. 79358 (May 2024, effective June 1, 2024) and Decision No. 81792 (May 2026). No ACC rule setting the cycle was found; the cycle comes from the tariff text. Source: docket.images.azcc.gov: E000051684.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Size cap | 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). Note: The tariff wording differs: applicability says '100 kW or less' but the renewable rate paragraph says 'below 100kW'. Source: docket.images.azcc.gov: E000051684.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Resource types | Renewable QFs: rate tables only for Fixed Tilt Solar and Single Axis Solar; cogeneration QFs: on-peak/off-peak rates. QF status per 18 C.F.R. Part 292 Subpart B and ACC Decision No. 52345. Note: The tariff prints no rate for non-solar renewable QFs. Source: docket.images.azcc.gov: E000051684.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Energy rate structure | 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.Source: docket.images.azcc.gov: E000051684.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Energy rates (sample cells) |
Copied as printed: a few labelled cells, not the full rate matrix. The whole schedule is linked below. Note: From the compliance tariffs (Sheets 804-1/805-1/806-2 and 804-2/805-2); values checked against the page image. Full set (summer/winter): distribution Fixed Tilt 4.221/1.949, Single Axis 4.788/2.097; high voltage Fixed Tilt 4.159/1.924, Single Axis 4.719/2.070; cogeneration distribution on-peak 6.670/6.038, off-peak 4.608/4.305; high voltage on-peak 6.600/5.982, off-peak 4.560/4.266. Source: docket.images.azcc.gov: E000051684.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Capacity payment | No capacity payment in the published rates. For QFs 100 kW or less able to deliver Firm Capacity, the contract must include a credit of not less than 10% of the standard rate, plus an additional capacity credit when capacity deferrals justify it.Source: docket.images.azcc.gov: E000051684.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Contract terms | Written contract required for QF Customers; the tariffs state no contract term for QFs 100 kW or less. QFs over 100 kW: contract term of no less than 18 years (Decision No. 77514), filed for Commission approval. Note: Decision No. 77514 (Dec 17, 2019) is a scan with OCR text. Source: docket.images.azcc.gov: E000051684.pdf · also: docket.images.azcc.gov: 0000200430.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Price fixity | Not fixed for a term: the tariff purchase rates apply until the Commission approves updated rates (at least every two years).Source: docket.images.azcc.gov: 0000216617.pdf · also: docket.images.azcc.gov: E000051684.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Schedule link | https://docket.images.azcc.gov/E000051684.pdf Note: The UNSE website copy (docs.uesaz.com 805-QF-B.pdf) was still the superseded Third Revised Sheet effective June 1, 2024 (Decision No. 79358) on 2026-10-04; the ACC docket compliance filing holds the current sheets. Source: docket.images.azcc.gov: E000051684.pdf · also: docs.uesaz.com: 805-QF-B.pdf · checked 2026-10-04 |
Values are copied as printed in the source. Where a value draws on more than one document, every source is listed, primary first.
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