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Knoxville Utilities Board (KUB) interconnection application

Knoxville Utilities Board (KUB) is a municipal utility serving 196,674 residential customers in Tennessee (EIA-861, 2025). Applications: PDF + email (KUB Application for Interconnection of Distributed Generation (PDF); submit to KUB contact Bill Warren, Bill.Warren@KUB.org, 4505 Middlebrook Pike, Knoxville, TN 37921, and place a solar interconnection request with KUB New Service at 865-558-2555). Gridpol files Knoxville Utilities Board (KUB) interconnection applications for licensed installers – solar, storage and EV chargers – with single-line diagram and site plan, unlimited for $500 a month.

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Process verified from Knoxville Utilities Board (KUB)’s official sources (see below). kub.org refuses connections from research location; portal (PDF + email to KUB contact), documents, fee and steps confirmed from archived official KUB pages/PDFs (2025-2026 captures). Minor gaps: named KUB contact may change; no stated review timelines; TVA DPP terms/metering not read in detail.

Knoxville Utilities Board (KUB) at a glance

Utility

Knoxville Utilities Board (TVA local power company (municipal))

Type

Municipal utility

EIA utility ID

10421

Residential customers

196,674 (EIA-861, 2025)

Net-metered residential customers

none reported

Service territory

7 counties in Tennessee

How to apply

PDF + email – KUB Application for Interconnection of Distributed Generation (PDF); submit to KUB contact Bill Warren, Bill.Warren@KUB.org, 4505 Middlebrook Pike, Knoxville, TN 37921, and place a solar interconnection request with KUB New Service at 865-558-2555 · official link

Who submits

Customer (account holder) signs application and the Interconnection, Metering, and Parallel Operation Agreement as 'Participant'; application has separate blocks for contact, system owner (third-party ownership allowed), project design/engineering firm (PE license) and electrical contractor (license #). No LOA form published.

Export compensation

Avoided cost – No KUB purchase; TVA EnergyRight Dispersed Power Production (DPP)
KUB agreement creates no obligation for KUB to buy excess generation. TVA DPP (facilities up to 80 MW): sell all or part of generation to TVA at TVA monthly avoided cost (listed $0.034/kWh, changes monthly), 5-year commitment; enroll via green.mytva.com after KUB interconnection; Tennessee has no state net metering mandate for TVA LPCs.

Wholesale supplier / association

Tennessee Valley Authority (TVA) - local power company (distributor) network · TVA Dispersed Power Production (DPP) Guidelines + Dispersed Power Price Schedule CSPP (Attachment A)

Documents Knoxville Utilities Board (KUB) asks for

  • Interconnection application formKUB Application for Interconnection of Distributed Generation: customer/contact/system owner, design firm, electrical contractor, inverter make/model/kW/kVA/V/phases, # inverters, system design capacity, battery backup, energy source, site load, annual kWh, install/in-service dates; complete only when all applicable info correct Gridpol prepares this.
  • Single-line diagram (one-line)Detailed one-line diagram plus applicable elementary diagrams; weatherproof single-line diagram must also be posted at the disconnect Gridpol prepares this.
  • PV module spec sheetMajor equipment specs (generators, transformers, inverters, breakers, relays, batteries, number and location of PV panels), test reports, other drawings; facility address or grid coordinates
  • Inverter spec sheetInverter data on application; compliance with UL 1741 SA, IEEE 1547, IEEE 519 required by agreement
  • Battery spec sheet (when applicable)Battery manufacturer/model if battery backup
  • Customer signatureInterconnection customer certification signature
  • Interconnection agreementKUB Interconnection, Metering, and Parallel Operation Agreement (2024); attach copy of any excess-generation sale agreement (e.g. TVA DPP)
  • Final inspection sign-offLocal building code official inspection and certification of installation forms provided to KUB
  • Other utility-specific document (when applicable)Systems >=100 kW: commissioning test plan on request; IEEE 1547-2018 Cat III / Cat B default settings, Volt-Var and Frequency-Watt active

How the Knoxville Utilities Board (KUB) process runs

  1. Place solar interconnection request with KUB New Service (865-558-2555); submit Application for Interconnection with one-line diagram, specs and $500 fee to KUB contact (Bill.Warren@KUB.org).
  2. KUB reviews application against codes/standards and screens; additional studies at Participant expense if required.
  3. Execute Interconnection, Metering, and Parallel Operation Agreement; then procure and install with lockable visible load-break disconnect adjacent to meter.
  4. Local building code official inspection; provide inspection/certification forms to KUB.
  5. KUB onsite review, metering installation (at Participant expense) and witness of any commissioning test (or waiver).
  6. KUB written authorization for parallel operation.
  7. Optional: enroll in TVA DPP to sell excess/all generation.

Fees

FeeApplies toNote
$500Interconnection application, one time per meter for any Distributed Energy ResourceKUB Electric Division Service Procedures (05/2025) and generate-your-own-power page
actual costAdditional screening studies (KUB discretion), metering installation, testing and witness verificationCalculated case by case; paid by Participant

Utility fees are paid by the installer or customer; they are not part of the Gridpol plan.

Size levels and limits

LevelUp toNote
Standard (< 100 kW)100 kWGeneral agreement requirements
Large Systems (>= 100 kW)At KUB sole discretion; IEEE 1547-2018/UL 1741 SA minimum, specified inverter settings, commissioning tests

No KUB net metering; TVA DPP eligibility up to 80 MW (renewables). Earlier separate >50 kW application form not found in current documents.

Storage, EV and stamps

Battery storage

Agreement covers generating and/or storage systems; disconnect labeled 'Generation and/or Storage Disconnect'; storage inverters >=100 kW must meet IEEE 1547-2018/UL 1741 SA with KUB default settings; anti-islanding trip <10 cycles (<0.1667 s) applies to batteries. Application asks battery backup yes/no and energy source incl. residential battery.

PE stamp

Application has a Project Design/Engineering section with PE license 'as applicable'; no explicit PE-stamp threshold stated. – PE-stamped drawings are not included in Gridpol.

Common issues the utility lists

  • Application not complete until all applicable and correct information is provided (application form)

Gridpol’s pre-submission check covers these before we file.

Sources

Other utilities in Tennessee

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Gridpol Unlimited

$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
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Applications are typically submitted within 2 business days after complete documents. Utility review times are set by each utility.

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