All utilities › Arizona › Tucson Electric Power (TEP)
Tucson Electric Power Company: 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: the 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 | Rider-11 (R-11), Partial Requirements Service (PRS) and Purchase Rates for Qualifying Facilities (Third Revised Sheet No. 711) Note: Current sheet is the compliance tariff in the ACC docket; 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: E000052188.pdf · checked 2026-10-04 | |||||||||||||||||||||
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| Docket or order | ACC Decision No. 81790 (Open Meeting May 7, 2026), Docket No. E-01933A-17-0360, approving TEP's December 30, 2025 application to update the QF purchase rates; compliance tariff filed May 19, 2026 and re-filed June 11, 2026 (errata correcting the 'Filed By' name), stamped approved by Staff on June 19, 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: 0000216615.pdf · also: docket.images.azcc.gov: E000052188.pdf, docket.images.azcc.gov: E000052367.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Effective date | 2026-06-01 Note: Tariff footer prints 'Effective: June 1, 2026'; Decision 81790 orders the purchase rates effective June 1, 2026. 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: E000052188.pdf · also: docket.images.azcc.gov: 0000216615.pdf, docket.images.azcc.gov: E000052367.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Next update | At least every two years: the 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. 79357 (May 2024, effective June 1, 2024) and Decision No. 81790 (May 2026). No ACC rule setting the cycle was found; the cycle comes from the tariff text. TEP's general rate case (Docket E-01933A-25-0103) was still pending on 2026-10-04. Source: docket.images.azcc.gov: E000052188.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Size cap | 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.Source: docket.images.azcc.gov: E000052188.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: E000052188.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Energy rate structure | 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.Source: docket.images.azcc.gov: E000052188.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: Cells without their own source are from the compliance tariff (Sheet 711-3); cells sourced to Decision 81790 come from its Table 2/Table 4 (proposed rates, approved), because the tariff's OCR splits those rows. All values were checked against the tariff page image. Full set: distribution Fixed Tilt 2.198/1.871, Single Axis 2.230/1.924; high voltage Fixed Tilt 2.166/1.846, Single Axis 2.197/1.899; cogeneration distribution on-peak 2.628/2.919, off-peak 2.452/2.640; high voltage on-peak 2.591/2.882, off-peak 2.416/2.606 (summer/winter). Source: docket.images.azcc.gov: E000052188.pdf · also: docket.images.azcc.gov: 0000216615.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; terms set in the contract filed with the Commission.Source: docket.images.azcc.gov: E000052188.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Contract terms | Written contract required for QF Customers; the tariff states no contract term for QFs 100 kW or less. QFs over 100 kW: contract term of no less than 18 years at TEP's long-term avoided cost (Decision No. 77513), filed for Commission approval. Note: Decision No. 77513 (Dec 17, 2019) is a scan with OCR text. Source: docket.images.azcc.gov: E000052188.pdf · also: docket.images.azcc.gov: 0000200429.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); the 2026 update lowered every rate.Source: docket.images.azcc.gov: 0000216615.pdf · also: docket.images.azcc.gov: E000052188.pdf · checked 2026-10-04 | |||||||||||||||||||||
| Schedule link | https://docket.images.azcc.gov/E000052188.pdf Note: TEP's website copy (docs.tep.com 711-Rider-11-PRS.pdf) was still the superseded Second Revised Sheet effective June 1, 2024 (Decision No. 79357) on 2026-10-04; the ACC docket compliance filing is the current sheet. Source: docket.images.azcc.gov: E000052188.pdf · also: docs.tep.com: 711-Rider-11-PRS.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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