Kentucky interconnection applications
59 electric utilities serve Kentucky (EIA-861, 2025): 4 investor-owned utilitys, 24 electric cooperatives, 30 municipal utilitys, 1 federal power agency. Together they serve 2,062,837 residential customers; 10,993 residential customers were on net metering at year-end 2025.
Largest utilities in Kentucky
Investor-owned utility · 476,780 residential customers · Kentucky
Applications: PDF + email – LG&E/KU Net Metering group
Interconnection process and documents →Investor-owned utility · 388,146 residential customers · Kentucky
Applications: PDF + email – LG&E/KU Net Metering group
Interconnection process and documents →Investor-owned utility · 140,950 residential customers · Kentucky
Applications: PDF + email – Duke Energy Customer Owned Generation
Interconnection process and documents →Investor-owned utility · 130,322 residential customers · Kentucky
Applications: PowerClerk – AEP PowerClerk
Interconnection process and documents →Electric cooperative · 65,494 residential customers · Kentucky
Interconnection process and documents →Electric cooperative · 65,069 residential customers · Kentucky
Interconnection process and documents →Electric cooperative · 61,870 residential customers · Kentucky
Interconnection process and documents →Electric cooperative · 61,500 residential customers · Kentucky
Interconnection process and documents →Electric cooperative · 54,002 residential customers · Kentucky
Interconnection process and documents →Electric cooperative · 49,590 residential customers · Kentucky
Interconnection process and documents →Electric cooperative · 47,514 residential customers · Kentucky
Interconnection process and documents →Electric cooperative · 40,704 residential customers · Kentucky
Interconnection process and documents →Export compensation among the researched Kentucky utilities: Net billing. Rules differ by utility – see each utility page.
Kentucky interconnection rule
Kentucky Public Service Commission
Interconnection ruleKRS 278.465-278.468; PSC 'Interconnection and Net Metering Guidelines - Kentucky' (Appendix A, Order of 2009-01-08, Administrative Case No. 2008-00169) – Interconnection and Net Metering Guidelines - Kentucky · source
Applies toAll retail electric suppliers (KRS 278.465-278.468): investor-owned utilities (KU, LG&E, Kentucky Power, Duke Energy Kentucky) and PSC-regulated rural electric cooperatives. 'Retail electric supplier' excludes municipal corporations (KRS 278.010(4)), so municipal utilities are not covered.
Application formUtility-specific 'Application for Interconnection and Net Metering' (Level 1 / Level 2) filed with tariff, following the PSC guideline template; must be posted on utility website; mail or in-person submission must be accepted
TimelinesLevel 1: decision within 20 business days; Level 2: 30 business days of a complete application (incomplete-information time added). If inspection/witness test required, customer notifies within 3 business days of completion and test occurs within 10 business days of completion.
FeesLevel 1: none. Level 2: up to $100 application/inspection/processing fee; reasonable impact study costs up to $1,000.
InsuranceCustomer must maintain general liability insurance (homeowner's, commercial or other policy) for Level 1 and Level 2; proof on request at application.
External disconnectWhere required by the utility, visible-break lockable external disconnect switch adjacent to the meter (or location labeled on meter), accessible to utility at all times; utility may waive case-by-case.
Export compensationNet billing – KRS 278.465-278.466 (2019 SB 100)
Systems <=45 kW. Exports compensated at a rate set by the PSC in each supplier's rate case, as dollar bill credits carried forward (no cash refund). Systems in service before the supplier's first post-2020 NM order keep 1:1 kWh netting for 25 years. Supplier obligation may end at 1% of single-hour peak. PSC guidelines template still shows original 30 kW limit; statute now 45 kW.
Cooperatives are covered. Municipal utilities (mostly TVA distributors) are excluded from 'retail electric supplier' and follow their own/TVA policies.
| Level | Up to | Criteria / review / fee |
|---|---|---|
| Level 1 | 45 kW | inverter-based, UL 1741 certified; aggregate gen <=15% of line-section peak; shared secondary <=20 kVA; not on area/spot network; no utility construction required · approve/deny within 20 business days · no application, study, inspection or witness test fees |
| Level 2 | 45 kW | non-inverter, non-UL-1741 equipment, or failing a Level 1 condition; utility technical requirements based on IEEE 1547 · 30 business days after complete application · up to $100 non-refundable; initial impact study costs up to $1,000 |
- KY PSC Interconnection and Net Metering Guidelines (Appendix A, Adm. Case 2008-00169): https://psc.ky.gov/agencies/psc/Industry/Electric/Final%20Net%20Metering-Interconnection%20Guidelines%201-8-09.pdf (retrieved 2026-11-13)
- KRS 278.465 Definitions: https://apps.legislature.ky.gov/law/statutes/statute.aspx?id=49545 (retrieved 2026-11-13)
- KRS 278.466 Availability of net metering: https://apps.legislature.ky.gov/law/statutes/statute.aspx?id=49546 (retrieved 2026-11-13)
- KRS 278.467 Guidelines and forms: https://apps.legislature.ky.gov/law/statutes/statute.aspx?id=49547 (retrieved 2026-11-13)
- KRS 278.010 Definitions (retail electric supplier): https://apps.legislature.ky.gov/law/statutes/statute.aspx?id=57960 (retrieved 2026-11-13)
All 59 utilities in Kentucky
- KU454,021
- LG&E388,146
- Duke Energy140,950
- Kentucky Power130,322
- South Kentucky Rural E C C65,346
- Owen Electric Cooperative Inc.65,069
- Blue Grass Energy Cooperative Corporation61,870
- Warren Rural Electric Cooperative Corporation61,500
- Salt River Electric Cooperative Corporation54,002
- Jackson Energy Cooperative Corporation49,590
- Kenergy Corporation47,514
- Pennyrile Rural Electric Cooperative40,704
- Nolin Rural Electric Cooperative Corporation36,631
- West Kentucky Rural E C C32,248
- Meade County Rural E C C29,572
- City of Bowling Green27,433
- Inter County Energy Cooperative Corporation26,993
- Clark Energy Cooperative Inc.26,315
- Farmers Rural Electric Cooperative Corporation25,109
- Taylor County Rural E C C24,888
- Jackson Purchase Energy Corporation23,989
- Fleming-Mason Energy Cooperative Inc.23,845
- City of Owensboro23,316
- Cumberland Valley Electric, Inc.22,506
- Tri-County Electric Member Corporation (TN)20,632
- City of Paducah18,967
- City of Frankfort17,258
- Shelby Energy Cooperative, Inc.17,245
- Licking Valley Rural E C C16,861
- Grayson Rural Electric Cooperative Corporation14,471
- Big Sandy Rural Electric Cooperative Corporation11,521
- Henderson City Utility Comm10,505
- City of Hopkinsville9,760
- Madisonville Municipal Utils6,923
- City of Murray6,187
- City of Glasgow5,675
- City of Berea Municipal Utility4,698
- City of Franklin4,621
- City of Mayfield Plant Board4,351
- City of Russellville3,098
- Gibson Electric Members Corporation2,531
- City of Benton1,891
- City of Jellico1,755
- City of Fulton1,195
- City of Hickman813
- City of Nicholasville0
- City of Bardstown0
- Corbin City Utilities Comm0
- Barbourville Utility Comm0
- City of Princeton0
- City of Paris0
- City of Vanceburg0
- Williamstown Utility Comm0
- City of Providence0
- City of Olive Hill0
- City of Falmouth0
- City of Bardwell0
- City of Benham0
- Tennessee Valley Authority0
Residential customers in Kentucky per EIA-861 (2025). Customer counts = bundled + delivery-only service (EIA-861 Part A + Part D). Service territory is reported by county; a county can be served by several utilities.
$500 / month
Unlimited interconnection applications. 12-month agreement, signed online. The agreement starts the day you sign; first invoice right away, then monthly.
- Unlimited interconnection applications
- Single-line diagram and site plan for every application
- Pre-submission check against the utility’s requirements
- Homeowner e-signature link for the authorization
- Filing in your utility portal accounts or by the utility’s method
- Utility questions, corrections and resubmissions
- Follow-up through approval, inspection and PTO
- Customer list, exports, API and webhooks
Applications are typically submitted within 2 business days after complete documents. Utility review times are set by each utility.