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Public power district

SRP interconnection application

SRP is a public power district serving 1,074,095 residential customers in Arizona (EIA-861, 2025). Applications: PowerClerk (SRP Interconnect (PowerClerk)). Gridpol files SRP 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 SRP’s official sources (see below). Fees and solar price plan not confirmed in this research; process doc dated 11/2022.

SRP at a glance

Utility

Salt River Project

Type

Public power district

EIA utility ID

16572

Residential customers

1,074,095 (EIA-861, 2025)

Net-metered residential customers

63,437 (EIA-861, 2025)

Service territory

3 counties in Arizona

How to apply

PowerClerk – SRP Interconnect (PowerClerk) · official link

Who submits

Installer applies via PowerClerk; property owner signs Distribution Interconnection Agreement electronically.

Review time (official)

Customer has six months to complete IA, installation and commissioning after application.

Documents SRP asks for

  • Interconnection application formPowerClerk Program Application Gridpol prepares this.
  • Interconnection agreementDistribution IA sent to property owner for e-signature; based on kW-AC
  • Three-line diagramThree-line drawing reviewed by SRP design consultant; as-builts for modifications 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.
  • Final inspection sign-offCity Clearance (CC) from AHJ, or Certificate In-lieu of Electrical Clearance (CILC) to CCDESK@srpnet.com where AHJ doesn't permit
  • Other utility-specific document (when applicable)Meter Pull form in PowerClerk if de-rate required

How the SRP process runs

  1. Apply online via PowerClerk
  2. SRP reviews for completeness
  3. SRP sends Distribution Interconnection Agreement to property owner
  4. Design review by SRP design consultant (schedule SES upgrade/meter pull first if needed)
  5. Install after design approval and AHJ permits
  6. AHJ inspection - CC sent to SRP or CILC
  7. Request SRP Final Inspection via PowerClerk (revisions ≥5 days before)
  8. SRP sets new meters; energize within 24 h
  9. SRP issues Permission to Operate letter

Storage, EV and stamps

Battery storage

Battery included in DER process; battery must be charged for SRP Final Inspection.

PE stamp

Three-line drawings must be stamped by AZ-registered PE if the jurisdiction does not issue permits. – PE-stamped drawings are not included in Gridpol.

Common issues the utility lists

  • Failed final inspection - reasons emailed to installer

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

Sources

Other utilities in Arizona

All Arizona 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