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Investor-owned utility

Duke Energy Florida interconnection application

Duke Energy Florida is an investor-owned utility serving 1,819,962 residential customers in Florida (EIA-861, 2025). Gridpol files Duke Energy Florida 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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Partly researched from official sources. Rule-level process verified from FAC 25-6.065. Not verified: duke-energy.com blocks our server and WebFetch (403); archive captures contain no Florida body content (location-gated). Verify on first project: Duke FL portal name/URL, applicant/LOA rules, document checklist (one-line/site plan), current Tier 2/3 application fees (2008 PSC staff rec: $240/$750 for Progress Energy Florida), battery/storage rules, meter/PTO steps.

Duke Energy Florida at a glance

Utility

Duke Energy Florida, LLC (Duke Energy)

Type

Investor-owned utility

EIA utility ID

6455

Residential customers

1,819,962 (EIA-861, 2025)

Net-metered residential customers

103,861 (EIA-861, 2025)

Service territory

32 counties in Florida

Who submits

Customer of record (third-party purchase/lease/O&M allowed under FAC 25-6.065(2)(a)); installer typically prepares the request. Exact applicant/agent rules on Duke's portal not confirmed.

Export compensation

NEM – Net Metering (FAC Rule 25-6.065)
Monthly kWh netting; excess credited to next month, carried up to 12 months; unused credits paid at end of calendar year (and on leaving) at average annual COG-1 as-available energy rate. Customer charge and demand charges still apply. Customer keeps RECs.

Review time (official)

FAC 25-6.065(7): within 10 business days of receipt the utility confirms the application is complete or states deficiencies; within 10 business days of a completed application it confirms receipt, gives inspection dates and whether a Tier 3 study is needed; utility executes the agreement within 30 calendar days of completed application (90 days if Tier 3 study). Customer returns executed agreement >=30 calendar days before parallel operation and within 1 year; utility inspections within 30 calendar days of receiving the executed agreement; customer notifies utility >=10 days before initial parallel operation.

Documents Duke Energy Florida asks for

  • Interconnection application formApplication for interconnection of customer-owned renewable generation (Tier 1/2/3); FAC 25-6.065(7)(a) requires a downloadable application on the utility website Gridpol prepares this.
  • Interconnection agreementStandard Interconnection Agreement (Tier 1, Tier 2/3) executed by customer and returned >=30 calendar days before parallel operation
  • UL 1741 / IEEE 1547 certificationEquipment listed by NRTL to IEEE 1547/1547.1 and UL 1741; utility-interactive inverter with anti-islanding (FAC 25-6.065(4)(b)-(c))
  • Proof of insurance (when applicable)General liability up to $1M Tier 2, up to $2M Tier 3; none required for Tier 1 (FAC 25-6.065(5)(e))
  • Final inspection sign-offLocal code official inspection/approval before parallel operation (FAC 25-6.065(5)(a))
  • Single-line diagram (one-line) (when applicable)Not confirmed from Duke pages (site blocked) Gridpol prepares this.

How the Duke Energy Florida process runs

  1. Customer/installer submits the Duke Energy Florida interconnection application for the Tier (Tier 2/3: PSC-approved fee, insurance).
  2. Duke confirms completeness or lists deficiencies within 10 business days; confirms completed application with inspection dates/Tier 3 study need.
  3. Duke executes Standard Interconnection Agreement within 30 calendar days (90 days with Tier 3 study); customer signs and returns >=30 days before parallel operation.
  4. Install; local code official (AHJ) inspection and approval.
  5. Notify Duke >=10 days before initial parallel operation; Duke inspection within 30 calendar days and net meter installed at no cost.
  6. Parallel operation after Duke approval (permission to operate).

Fees

FeeApplies toNote
$0Tier 1 ≤10 kWFAC 25-6.065(4)(e): no application fee for Tier 1
Tier 2 / Tier 3PSC-approved fees; 2008 PSC staff recommendation listed $240 (Tier 2) and $750 (Tier 3) for Progress Energy Florida - verify current tariff

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

Size levels and limits

LevelUp toNote
Tier 110 kWno application fee, no insurance, inverter-based exempt from manual disconnect
Tier 2100 kW>10 kW to 100 kW
Tier 32000 kW>100 kW to 2 MW; interconnection study possible
Net metering cap2000 kW

Gross power rating = AC nameplate (inverter systems: DC x 0.85) and must not exceed 90% of the customer's distribution service rating (FAC 25-6.065(2)(b),(4)(a)).

Sources

Florida interconnection rule

Commission

Florida Public Service Commission

Interconnection rule

Rule 25-6.065, F.A.C. – Interconnection and Metering of Customer-Owned Renewable Generation · source

Applies to

All investor-owned electric utilities (FPL, Duke Energy Florida, TECO, FPUC). Municipal utilities and rural electric cooperatives are not bound by the rule but must adopt their own standardized interconnection agreement and net metering program under s. 366.91(6), F.S.

Application form

Utility-specific standard interconnection application and Standard Interconnection Agreement (filed as part of each IOU's tariff); forms must be posted on the utility website, hard copy within 5 business days of request

Timelines

Completeness check within 10 business days of receipt; written notice of receipt/inspection dates/study need within 10 business days of complete application; utility executes agreement within 30 calendar days (90 days if Tier 3 study); customer returns signed agreement >=30 days before parallel operation and within 1 year; utility inspection within 30 calendar days of receiving signed agreement; customer notifies utility >=10 days before first energization.

Fees

Tier 1: no fees beyond those of other retail customers. Tiers 2-3: cost-based application fee only with Commission approval; Tier 3 may add study charge. No interconnection fees without prior Commission approval.

Insurance

Tier 1: none required (utility may recommend). Tier 2: general liability up to $1 million. Tier 3: up to $2 million. Self-insurance allowed.

External disconnect

Utility may require a visible, lockable load-break manual disconnect adjacent to the meter at customer expense; inverter-based Tier 1 systems are exempt unless the utility installs it at its own expense.

Export compensation

NEM – Rule 25-6.065(8), F.A.C.; s. 366.91, F.S.
Monthly netting; excess credited to next month's bill, rolled up to 12 months; unused credits paid at average annual COG-1 as-available energy rate at year-end. Customer keeps RECs. No aggregate cap in rule.

Not bound by the rule

Each municipal electric utility and rural electric cooperative selling at retail must develop a standardized interconnection agreement and net metering program for customer-owned renewable generation (s. 366.91(6), F.S.); terms set by each governing authority.

Other utilities in Florida

All Florida utilities →

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
Get started

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

Get started – $500/month unlimited