Avoided-Cost Ratesby Hundred Dollar Labs

Kentucky PURPA avoided-cost rates

The standard-offer rates for small generators (qualifying facilities) published by 4 investor-owned utilities we cover in Kentucky: Duke Energy Kentucky, Kentucky Power, KU (Kentucky Utilities) and Louisville Gas and Electric (LG&E). Checked on October 4, 2026.

Utility	Schedule	Size cap	Rate structure	Effective	Checked on
Duke Energy Kentucky	Cogeneration and Small Power Production Sale and Purchase Tariff - 100 kW or Less (KY.P.S.C. Electric No. 2, Ninth Revised Sheet No. 93); identical rates in the Greater Than 100 kW tariff (Tenth Revised Sheet No. 94)	Sheet 93: qualifying facilities of 100 kW or less. Sheet 94 covers facilities greater than 100 kW with the same printed rates; under 807 KAR 5:054 Section 7(4) rates for QFs over 100 kW are the basis for negotiation.	Energy: hourly PJM Real-Time LMP at the DEK Aggregate price node (energy, congestion and losses), converted to $/kWh for each hour of the billing month. Capacity: separate $/kW-month rate by contract start year and contract length.	2026-05-13	2026-10-04
Kentucky Power	Tariff COGEN/SPP (Cogeneration and/or Small Power Production), P.S.C. KY. No. 14, Sheet Nos. 21-1 to 21-4	PURPA Section 210 QFs: cogeneration facilities with net capacity at or below 20,000 kW; small power production facilities at or below 5,000 kW.	Energy credit at variable LMP at time of delivery (standard meter for all kWh, or time-of-day meter with on-peak 7 a.m.-9 p.m. weekdays and off-peak periods). Separate capacity credit in $/kW-month if the customer contracts for a specified capacity. Options: Option 2 sells excess energy over the customer's load; Option 3 sells total output while buying all load from the company. Monthly metering charges apply.	2026-03-01	2026-10-04
KU (Kentucky Utilities)	Standard Rate Rider SQF, Small Capacity Cogeneration and Small Power Production Qualifying Facilities (Sheet No. 55); Rider LQF (Sheet No. 56) carries the same rates for QFs over 100 kW but they are advisory only	Nameplate capacity of 100 kW or less (Rider SQF). QFs over 100 kW use Rider LQF, where the same rates are only the basis for negotiation (807 KAR 5:054 Section 7(4)).	Flat $/MWh energy rates and separate $/MWh capacity rates by technology, by 2-year or 7-year PPA, and by distribution- or transmission-connected project; no time-of-use or seasonal split. Energy and capacity rates are added to give the All-In Rate. As-available energy (no PPA) is priced on the applicable 2-year PPA rate.	2026-02-16	2026-10-04
Louisville Gas and Electric (LG&E)	Standard Rate Rider SQF, Small Capacity Cogeneration and Small Power Production Qualifying Facilities (Sheet No. 55); Rider LQF (Sheet No. 56) carries the same rates for QFs over 100 kW but they are advisory only	Nameplate capacity of 100 kW or less (Rider SQF). QFs over 100 kW use Rider LQF, where the same rates are only the basis for negotiation (807 KAR 5:054 Section 7(4)).	Flat $/MWh energy rates and separate $/MWh capacity rates by technology, by 2-year or 7-year PPA, and by distribution- or transmission-connected project; no time-of-use or seasonal split. Energy and capacity rates are added to give the All-In Rate. As-available energy (no PPA) is priced on the applicable 2-year PPA rate.	2026-02-16	2026-10-04

When these rates change next

Duke Energy Kentucky: At least every two years: 807 KAR 5:054 Section 5(1)(a) requires avoided cost data to be filed not less often than every two years unless the PSC decides otherwise. The tariff states no update date.
Kentucky Power: At least every two years: 807 KAR 5:054 Section 5(1)(a) requires avoided cost data to be filed not less often than every two years unless the PSC decides otherwise. The tariff says only that the credit rates are subject to revision from time to time as approved by the Commission.
KU (Kentucky Utilities): At least every two years: 807 KAR 5:054 Section 5(1)(a) requires utilities with annual retail sales over 500 million kWh to file avoided cost data not less often than every two years unless the PSC decides otherwise. The tariff states no update date; the current SQF rates were set in the base rate case.
Louisville Gas and Electric (LG&E): At least every two years: 807 KAR 5:054 Section 5(1)(a) requires utilities with annual retail sales over 500 million kWh to file avoided cost data not less often than every two years unless the PSC decides otherwise. The tariff states no update date; the current SQF rates were set in the base rate case.

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