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Wisconsin Power and Light 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: Annual: the Option A capacity credit 'will be updated each calendar year' (MISO auction formula); the standard avoided cost of energy is described in the same rate book as 'annually updated'.
Rates, eligibility and contract terms change: confirm them with the utility or the state utility commission before relying on them.
| Schedule | Schedule PgS-1, Parallel Generation - (In Excess of 20 kW), Sheets 7.75–7.79; Schedule PgS-3 (20 kW or less) pays non-renewable generators the PgS-1 standard avoided cost energy ratesSource: alliantenergy.com: wisconsinelectricscheduleofrates.pdf · checked 2026-10-04 | ||||||||||||||||||
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| Docket or order | Rate sheets 7.75–7.76: PSCW Docket 6680-TE-2026, letter dated 12/30/2025. Sheets 7.77–7.79: Docket 6680-TE-107, order dated 12/9/2022.Source: alliantenergy.com: wisconsinelectricscheduleofrates.pdf · checked 2026-10-04 | ||||||||||||||||||
| Effective date | 2026-01-01Source: alliantenergy.com: wisconsinelectricscheduleofrates.pdf · checked 2026-10-04 | ||||||||||||||||||
| Next update | Annual: the Option A capacity credit 'will be updated each calendar year' (MISO auction formula); the standard avoided cost of energy is described in the same rate book as 'annually updated'. Note: The 'annually updated' wording is on a community solar sheet that references Schedule PgS-3; PgS-1 itself states no update date for the energy credit. No Wisconsin statute or rule setting the cycle was found. Source: alliantenergy.com: wisconsinelectricscheduleofrates.pdf · checked 2026-10-04 | ||||||||||||||||||
| Size cap | Customers taking service under another rate schedule with generation rated in excess of 20 kW-ac but not in excess of 5,000 kW-ac (aggregated across conjunctively billed accounts). Generation of 20 kW or less: Schedule PgS-3. Note: PgS-1 does not mention PURPA or QF certification; it is the parallel generation purchase schedule that PgS-3 calls the 'standard avoided cost' schedule. Source: alliantenergy.com: wisconsinelectricscheduleofrates.pdf · checked 2026-10-04 | ||||||||||||||||||
| Resource types | Option A (default): any parallel generation. Option B (sell-all): only wind, solar PV, hydroelectric, wood or wood waste or refuse-derived fuel, optionally with storage charged solely by the facility.Source: alliantenergy.com: wisconsinelectricscheduleofrates.pdf · checked 2026-10-04 | ||||||||||||||||||
| Energy rate structure | Energy credit per kWh by pricing period (High, Regular, Low) and service voltage (Transmission/Primary/Secondary). High Rate: weekdays 11 a.m.–7 p.m. in summer (June–August) and 5–9 p.m. in winter (December–February); Low Rate: 11 p.m.–6 a.m. weekdays and all weekend/holiday hours; Regular: all other hours. Capacity credit paid per kWh in the High Rate period.Source: alliantenergy.com: wisconsinelectricscheduleofrates.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: Column order as printed: Transmission, Primary, Secondary; the Transmission column equals the Secondary column on the sheet. PgS-3 (Sheet 7.81) repeats these rates and adds an Average row ($0.04349 primary, $0.04254 secondary) for non-time-of-day meters. Source: alliantenergy.com: wisconsinelectricscheduleofrates.pdf · checked 2026-10-04 | ||||||||||||||||||
| Capacity payment | Option A (default): $0.10315 per kWh received during the High Rate period, updated each calendar year (formula (X*365)/768, X = latest MISO capacity auction result). Option B (sell-all, eligible renewables): per-kWh credit in the High Rate period fixed for the contract period; 2026 values $0.04072 (5-year), $0.08144 (10-year), $0.12216 (15-year) per kWh, based on MISO CONE x contract-length multiplier (25%/50%/75%). Option B adds a $0.7500 per day grid connection charge.Source: alliantenergy.com: wisconsinelectricscheduleofrates.pdf · checked 2026-10-04 | ||||||||||||||||||
| Contract terms | Contract specifying technical and operating aspects required. Option B: 5-, 10- or 15-year contract with a committed nameplate capacity; contract may be terminated if the facility produces nothing for six months, with an Early Termination Penalty (capacity credit per kWh x 768 hours x contracted capacity). Either side may negotiate a facility-specific rate, subject to PSC review. Note: Sheet 7.77 (2022) mentions only 5- or 10-year Contract Periods; the 2026 Sheet 7.76 also lists a 15-year contract. Source: alliantenergy.com: wisconsinelectricscheduleofrates.pdf · checked 2026-10-04 | ||||||||||||||||||
| Price fixity | Energy credits variable (revised annually). Option A capacity credit updated each calendar year. Option B capacity credit fixed for the 5/10/15-year contract period.Source: alliantenergy.com: wisconsinelectricscheduleofrates.pdf · checked 2026-10-04 | ||||||||||||||||||
| Schedule link | https://www.alliantenergy.com/-/media/alliant/documents/accountandbilling/ratesandtariffs/wisconsinelectricrates/wisconsinelectricscheduleofrates.pdf Note: Full WPL Volume III electric schedule of rates; PgS-1 is Sheets 7.75–7.79, PgS-3 Sheets 7.80–7.82. Source: alliantenergy.com: wisconsinelectricscheduleofrates.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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