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Wisconsin Public Service (WPS), Wisconsin: PURPA avoided-cost rates

Wisconsin Public Service Corporation: 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: Annual, per the tariff: the Avoided Energy Cost Rate is updated on January 1 of each year (forecast load-weighted day-ahead LMP for the WPS.WPSM zone plus distribution losses); the PG-2B capacity rate is updated each June 1 to the current MISO CONE; PG-2A accredited capacity is adjusted each June 1.

Rates, eligibility and contract terms change: confirm them with the utility or the state utility commission before relying on them.

ScheduleSchedule PG-2A, Parallel Generation-Purchase by WPSC (sell-all QFs; Sheets E4.15–E4.18) and Schedule PG-2B, Parallel Generation-Purchase by WPSC (QF customers on a time-of-use rate selling to the Company; Sheets E4.19–E4.20.1)

Note: Schedule PG-2C (Sheet E4.21, up to 20,000 kW) provides negotiated buy-back rates only.

Source: wisconsinpublicservice.com: PG-2A.pdf · also: wisconsinpublicservice.com: PG-2B.pdf · checked 2026-10-04
Docket or orderEnergy rates: PSCW Order 6690-TE-2026 dated 12-23-2025. Capacity rates: Letter 6690-TE-2026 dated May 5, 2026. Remaining sheets: Order 6690-TE-114 dated 12-8-2022.Source: wisconsinpublicservice.com: PG-2A.pdf · also: wisconsinpublicservice.com: PG-2B.pdf · checked 2026-10-04
Effective dateEnergy rates: 2026-01-01; capacity rates: 2026-06-01Source: wisconsinpublicservice.com: PG-2A.pdf · also: wisconsinpublicservice.com: PG-2B.pdf · checked 2026-10-04
Next updateAnnual, per the tariff: the Avoided Energy Cost Rate is updated on January 1 of each year (forecast load-weighted day-ahead LMP for the WPS.WPSM zone plus distribution losses); the PG-2B capacity rate is updated each June 1 to the current MISO CONE; PG-2A accredited capacity is adjusted each June 1.

Note: No Wisconsin statute or rule setting a QF rate filing cycle was found; the cycle stated is the tariff's own.

Source: wisconsinpublicservice.com: PG-2A.pdf · also: wisconsinpublicservice.com: PG-2B.pdf · checked 2026-10-04
Size capPG-2A: certified QFs with total generating capacity of 5,000 kW or less, all output purchased by the Company, directly connected via a Company generation meter with no other load except generator auxiliaries. PG-2B: QF customers on a time-of-use rate with customer-owned capacity of 5,000 kW or less.Source: wisconsinpublicservice.com: PG-2A.pdf · also: wisconsinpublicservice.com: PG-2B.pdf · checked 2026-10-04
Resource typesAny QF certified under FERC Part 292 (PURPA); no fuel or technology restriction. Renewable generators may be offered an optional per-kWh renewable premium for transferring renewable credits.Source: wisconsinpublicservice.com: PG-2A.pdf · checked 2026-10-04
Energy rate structureAvoided Energy Cost Rate per kWh, not subject to fuel or other adjustments, by on-peak/off-peak, Winter (October–May)/Summer (June–September) and service voltage (Secondary/Primary/Transmission). On-peak: 7:00 AM–10:00 PM winter, 7:00 AM–11:00 PM summer, Monday–Friday except holidays. Avoided Transmission Cost Rate $0.00000 per kWh.Source: wisconsinpublicservice.com: PG-2A.pdf · checked 2026-10-04
Energy rates (sample cells)
Cell (as labelled, with vintage)RateUnits
PG-2A, Secondary, On-Peak, Winter$0.03798$/kWh
PG-2A, Secondary, On-Peak, Summer$0.04472$/kWh
PG-2A, Secondary, Off-Peak, Winter$0.03130$/kWh
PG-2A, Secondary, Off-Peak, Summer$0.03110$/kWh
PG-2A, Transmission, On-Peak, Summer$0.04341$/kWh

Copied as printed: a few labelled cells, not the full rate matrix. The whole schedule is linked below.

Note: Rates printed as '$0.03798/kWh' etc. PG-2B (Sheet E4.19) prints the same values without the '/kWh' suffix.

Source: wisconsinpublicservice.com: PG-2A.pdf · checked 2026-10-04
Capacity paymentPG-2A: monthly credit = QF accredited capacity x Avoided Capacity Cost Rate (MISO Zone 2 CONE for the planning year the QF is first energized, loss-adjusted): $11.666 / $11.328 / $11.186 per kW per month (Secondary / Primary / Transmission), effective June 1, 2026. PG-2B: on-peak excess energy credit 0.03497 (printed without '$') / $0.03396 / $0.03353 per kWh (Secondary / Primary / Transmission).Source: wisconsinpublicservice.com: PG-2A.pdf · also: wisconsinpublicservice.com: PG-2B.pdf · checked 2026-10-04
Contract termsNo contract term or length printed in PG-2A/PG-2B. Schedule PGX rule 1 requires a contract specifying technical connection and operating aspects; any renewable premium could be set when the contract is signed; PG-2C gives QFs the right to request negotiated buy-back rates (Company must respond within 30 days).Source: wisconsinpublicservice.com: PGX.pdf · also: wisconsinpublicservice.com: PG-2A.pdf, wisconsinpublicservice.com: PG-2C.pdf · checked 2026-10-04
Price fixityEnergy rates variable: reset every January 1. PG-2A capacity rate tied to the CONE of the planning year the QF is first energized (accredited kW reset each June 1); PG-2B capacity rate reset each June 1.

Note: Sheet E4.16 prints only the June 1, 2026 capacity row; it does not show rates for QFs energized in earlier planning years.

Source: wisconsinpublicservice.com: PG-2A.pdf · also: wisconsinpublicservice.com: PG-2B.pdf · checked 2026-10-04
Schedule linkhttps://www.wisconsinpublicservice.com/company/wi_tariffs/PG-2A.pdf

Note: Companion sheets: PG-2B https://www.wisconsinpublicservice.com/company/wi_tariffs/PG-2B.pdf; rules PGX https://www.wisconsinpublicservice.com/company/wi_tariffs/PGX.pdf

Source: wisconsinpublicservice.com: PG-2A.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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