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Investor-owned utility

Duquesne Light interconnection application

Duquesne Light is an investor-owned utility serving 553,124 residential customers in Pennsylvania (EIA-861, 2025). Applications: Own online portal (Duquesne Light online generation interconnection portal (account required to submit applications and supporting documents)). Gridpol files Duquesne Light 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. Re-checked 2026-11-13: duquesnelight.com returns empty/blocked content, puc.pa.gov and the PJM-hosted Duquesne 'Distribution System Generation Interconnection Requirements' (Rev 0, 09/09/2024) unreachable; archive.org not reachable. Existence of an online interconnection portal (account required) only from a search snippet of a PA PUC filing. Verify on first project: portal URL, document checklist, steps, storage rules; fees shown are PA standard fees (52 Pa. Code Ch. 75), not confirmed from Duquesne.

Duquesne Light at a glance

Utility

Duquesne Light Co (Duquesne Light Holdings)

Type

Investor-owned utility

EIA utility ID

5487

Residential customers

553,124 (EIA-861, 2025)

Net-metered residential customers

11,185 (EIA-861, 2025)

Service territory

3 counties in Pennsylvania

How to apply

Own online portal – Duquesne Light online generation interconnection portal (account required to submit applications and supporting documents)

Export compensation

NEM – Pennsylvania net metering (52 Pa. Code §75.11 et seq.)

Documents Duquesne Light asks for

  • Interconnection application formFilled in by us from your project data in the utility’s portal or on its form. Gridpol prepares this.
  • Single-line diagram (one-line)Drawn by us from your equipment data: modules, strings, inverter, battery, disconnects, point of interconnection, meter. Gridpol prepares this.
  • Site plan / site layoutDrawn by us from your roof sketch or photos: array, inverter, battery, disconnect, meter and main panel locations. Gridpol prepares this.
  • PV module spec sheetManufacturer data sheet of the modules.
  • Inverter spec sheetManufacturer data sheet (string inverter, microinverter or hybrid inverter).
  • Customer signatureThe account holder signs the application or authorization. We send the signature link.
  • Recent electric billName, service address, account and meter number must match the application.
  • Final inspection sign-offApproved electrical inspection from the authority having jurisdiction after installation.

Typical documents for US utilities – not yet verified for Duquesne Light. We confirm Duquesne Light’s exact list on the first project.

Fees

FeeApplies toNote
$100Level 1 (certified inverter <=10 kW)
$250 + $1/kWLevel 2
$350 + $2/kWLevel 3 / Level 4

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

Size levels and limits

LevelUp toNote
Level 110 kWcertified inverter-based
Level 22000 kWcertified inverter-based
Level 3non-certified / larger
Level 4non-export
Net metering cap50 kW

PA NEM: residential <=50 kW; systems >=500 kW need PUC review (per utilities)

Sources

Pennsylvania interconnection rule

Commission

Pennsylvania Public Utility Commission

Interconnection rule

52 Pa. Code 75.21-75.51 (Chapter 75 Subchapter C, Interconnection Standards); fee policy 52 Pa. Code 69.2104 – Alternative Energy Portfolio Standards - Interconnection Standards · source

Applies to

Electric distribution companies (EDCs) regulated by the PUC, for customer-generators' small generator facilities <=5 MW not subject to RTO interconnection rules (75.31); not electric cooperatives or municipal utilities

Application form

EDC standard interconnection request forms and standard small generator interconnection agreement (examples posted on EDC websites, 75.33); Certificate of Completion

Timelines

Level 1: completeness 10 business days; screen verification 15 BD after; witness test within 10 BD of certificate of completion or deemed waived; approval conditional on local code approval, certificate of completion and signed standard agreement (75.37).

Fees

Policy statement 52 Pa. Code 69.2104: Level 1 $100; Level 2 $250 + $1/kW; Level 3 $350 + $2/kW plus studies; engineering not over $100/hour.

Insurance

Not addressed in the Chapter 75 sections reviewed.

External disconnect

Required: lockable, visible-break isolation device accessible by EDC, owned/maintained by facility owner; padlockable draw-out breaker acceptable; lockbox option for locked areas (75.36(9)-(10)).

Export compensation

NEM – 52 Pa. Code 75.11-75.17; 73 P.S. 1648.1 et seq. (AEPS Act)
Residential <=50 kW; nonresidential <=3 MW (<=5 MW under 75.16); >=500 kW needs PUC approval. Full retail kWh credit (generation, transmission, distribution), excess carried forward through the year; year-end excess compensated per 75.13 (price-to-compare).

Not bound by the rule

Electric cooperatives and municipal utilities are not EDCs under the AEPS rules and set their own net metering/interconnection policies.

Other utilities in Pennsylvania

All Pennsylvania 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