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Municipal utility

Cedar Falls Utilities interconnection application

Cedar Falls Utilities is a municipal utility serving 17,746 residential customers in Iowa (EIA-861, 2025). Gridpol files Cedar Falls Utilities 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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Iowa’s commission rule (199 IAC Chapter 45 (199-45.1 to 45.13)) does not bind municipal utilitys; Cedar Falls Utilities sets its own interconnection policy. We confirm its form on the first project. Municipal utilities and non-rate-regulated electric cooperatives are outside 199 IAC 45 and §476.49 definitions (rate-regulated utilities only); they adopt their own interconnection and net metering/buyback policies.

Cedar Falls Utilities at a glance

Utility

Cedar Falls Utilities

Type

Municipal utility

EIA utility ID

3203

Residential customers

17,746 (EIA-861, 2025)

Net-metered residential customers

78 (EIA-861, 2025)

Service territory

3 counties in Iowa

Documents Cedar Falls Utilities 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 Cedar Falls Utilities. We confirm Cedar Falls Utilities’s exact list on the first project.

Iowa interconnection rule

Commission

Iowa Utilities Commission (IUC, formerly Iowa Utilities Board)

Interconnection rule

199 IAC Chapter 45 (199-45.1 to 45.13) – Electric Interconnection of Distributed Generation Facilities · source

Applies to

Electric utilities subject to IUC rate regulation (MidAmerican Energy, Interstate Power & Light/Alliant) for DG not subject to FERC/MISO/SPP/affected-system interconnection requirements (199-45.1 'Utility', 45.2). >10 MVA starts at Level 4.

Application form

Commission-approved statewide interconnection request forms and agreements posted on iuc.iowa.gov (Level 1 Interconnection Request Application form and Distributed Generation Interconnection Agreement incl. Conditional Agreement; Level 2/3/4 forms; Certificate of Completion) (199-45.4(1)); electronic submission if agreed.

Timelines

Level 1: completeness 7 BD, screens 15 BD; approval conditioned on local electrical code approval, Certificate of Completion, witness test (completed or waived), signed Conditional Agreement within 30 BD (+15 BD extension). Level 2: completeness 10 BD, screens 20 BD. Witness test needs 15 BD notice. Preapplication report $300.

Fees

Caps (199-45.4(3)): L1 $125 (+$125 witness test); L2 $250 + $1/kVA (+$125); L3 $500 + $2/kVA; L4 $1,000 + $2/kVA. Preapplication report $300.

Insurance

Chapter 45 text contains no insurance requirement (terms may be in commission-approved forms; not checked).

External disconnect

Required for DG placed in service after 2015-07-01: customer-owned disconnection device easily visible and adjacent to meter (within 10 ft home/business, 30 ft multi-building; 30-72 in height), labeled; permanent placard within 10 ft of meter (199-45.3(2)).

Export compensation

Net billing – Iowa Code §476.49; utility tariffs
Rate-regulated utilities file either net billing (monthly kWh credit, annual cash-out at avoided cost split with LIHEAP) or inflow-outflow billing (hourly/subhourly, credited at retail volumetric rate for 20 years until value-of-solar). Facility <=1 MW AC and <=110% of annual usage. Value-of-solar proceeding after 2027-07-01 petition or 5% statewide DG penetration.

Not bound by the rule

Municipal utilities and non-rate-regulated electric cooperatives are outside 199 IAC 45 and §476.49 definitions (rate-regulated utilities only); they adopt their own interconnection and net metering/buyback policies.

Other utilities in Iowa

All Iowa 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