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Wisconsin / Local permit guide

Madison Solar Permit Guide

Your local requirements. The official sources. A clearer next step.

Electric utility
Madison Gas and Electric (MGE)Source linked
Local pathway
Not yet verified.
Review time
Same-day review for eligible expedited-permit projectsNo verified standard-path permit timeline is available.See source scope and conditions below.
See your permit path

Dane County ·

Madison Solar Permit Checklist
Printed from mygridpermit.com/wisconsin/madison/solar-permit-guide/ · Last verified 2026-08-13 · City of Madison Building Inspection Division (Zoning and Building Inspection) / MGE · Verify current requirements before relying on this checklist. Programs and fees change.
Source healthLast verified 2026-08-132 official sources5 of 6 core facts verified
Jump to a section
Informational only. This page is not legal, engineering, or permit advice. Every fact below links to the official source it came from and shows how confident we are in it. Verify current requirements with City of Madison Building Inspection Division (Zoning and Building Inspection) and MGE before making a decision.

Research coverage

Your permit path,
at a glance.

This shows what GridPermit has verified for Madison. It does not show the status of a specific project.

  1. 01Permit authorityCity of Madison Building Inspection Division (Zoning and Building Inspection)Authority sourced
  2. 02DocumentsChecklist includes conditional itemsConditions apply
  3. 03InspectionInspection guidance for MadisonSteps sourced
  4. 04Utility & PTOMadison Gas and Electric (MGE)Utility path sourced

01 / Know your path

Two approvals.
One project.

Local authority

Permit & inspection

City of Madison Building Inspection Division (Zoning and Building Inspection)

Local requirements
Electric utility

Interconnection & PTO

Madison Gas and Electric (MGE)

Utility requirements

A local permit and utility permission to operate are different approvals. Check the local sequence and requirements below.

How to read this guide

GridPermit collects Wisconsin residential solar and permitting facts directly from official sources (city, county, and state government sites, utilities, and public utilities commissions) and shows only what we can verify, with a confidence score and a link to where it came from. Nothing here is estimated or inferred beyond what's stated below. See our methodology for the rules this page follows.

Permit timeline

Same-day review for eligible expedited-permit projects

No verified standard-path permit timeline is available.

Per the City's own page, standard residential applications with no zoning complications can receive a permit immediately once documents are complete. Properties in a historic district or Planned Development require additional approval steps that may extend the timeline by two weeks or more — this record's same-day figure applies only to the standard, non-complicated path.

Sources & confidence

Confidence: Medium (0.75)

Source(s): How to Go Solar

Battery/solar incentive program on record

No battery/storage incentive program is on record for this locality.

02 / Prepare your application

What you need.

0 of 6 markedSaved only on this device; not confirmation of permit readiness.

Sources & confidence

Confidence: High (0.9)

Source(s): How to Go Solar

Permit fees

The City's own page states applicable fees apply per its Building Inspection Fees schedule but does not state a specific dollar figure inline — left null rather than estimated.

Not yet verified.

Rebates on record

Rebates on record

Not yet verified.

Utility and generation supplier

Utility

Madison Gas and Electric (MGE)

Sources & confidence

Confidence: High (0.9)

Source(s): Customer-Owned Generation

Generation supplier

Madison Gas and Electric (MGE) (utility)

MGE also separately offers a 'Shared Solar' community-solar program, distinct from a customer-owned rooftop system. Some supporting official material could not be independently confirmed from the full source in GridPermit's latest review. Verify the current requirement with the authority before relying on it.

Sources & confidence

Confidence: Medium (0.6)

Source(s): Customer-Owned Generation

Interconnection

https://www.mge.com/smart-energy/clean-energy/solar-energy/customer-owned-generation

MGE's own page confirms a traditional retail-rate net metering structure (bill credit for excess power delivered to the grid), structurally different from We Energies' buy-back-rate approach elsewhere in Wisconsin (see the utility-comparison note on the We Energies-territory locality researched separately, if published). Some supporting official material could not be independently confirmed from the full source in GridPermit's latest review. Verify the current requirement with the authority before relying on it.

Confidence: High (0.8)

Permit authority

City of Madison Building Inspection Division (Zoning and Building Inspection)

Wisconsin's Uniform Dwelling Code (UDC) is a genuinely statewide code for one- and two-family dwellings, administered by the state Department of Safety and Professional Services (DSPS) but enforced locally in every Wisconsin municipality — permit issuance for residential solar in Madison is handled by the City's own Building Inspection Division, not directly by DSPS. Electrical work statewide is separately governed by the Wisconsin Electrical Code (SPS 316, based on the NEC).

Sources & confidence

Confidence: High (0.9)

Source(s): How to Go Solar

Permit page: https://www.cityofmadison.com/sustainability/energy/renewable-energy/how-to-go-solar

Inspection steps

  • Inspections are scheduled during construction and must be completed before proceeding to the next construction phase
  • A final inspection is requested upon completion
  • The homeowner is responsible for coordinating all inspections with assigned inspectors
Sources & confidence

Confidence: High (0.85)

Source(s): How to Go Solar

Eligibility constraints

  • Property types: residential
  • Max system size (AC): Not yet verified.
  • Max system size (DC): Not yet verified.
  • Max thermal capacity: Not yet verified.
  • Program/pathway: Not yet verified.
  • Other conditions:
    • Properties in a historic district or subject to a Planned Development require additional approval steps beyond the standard permit path
Sources & confidence

Confidence: Medium (0.7)

Source(s): How to Go Solar

Official contacts

Official contacts

Confidence: Medium (0.7)

Need a solar installer who handles permits in Madison?

EnergySage is an independent solar marketplace where you can request property-specific pricing from installers familiar with local permitting.

Compare quotes from solar installers →

You'll continue on EnergySage's website. GridPermit links to EnergySage as an independent third-party resource. This link is not currently tracked for compensation.

Official sources

Official sources

Frequently Asked Questions

What utility serves solar customers in Madison, Wisconsin?

Madison Gas and Electric (MGE) is the interconnection and distribution utility for Madison. The same utility is also listed as the default electricity generation supplier.

How long does an expedited-eligible residential solar permit take in Madison?

Per the City's own page, standard residential applications with no zoning complications can receive a permit immediately once documents are complete. Properties in a historic district or Planned Development require additional approval steps that may extend the timeline by two weeks or more — this record's same-day figure applies only to the standard, non-complicated path. No verified standard-path permit timeline is available.

What documents are required for a solar permit in Madison?

Commonly required documents include: Zoning information from the Assessor's property lookup; Electrical documentation showing the photovoltaic device is UL listed; Plumbing documentation proving non-toxic transfer fluid or a double-walled heat exchanger; Structural calculations and drawings showing roof attachment and the existing structure's capacity; Solar device catalog sheets with weight specifications; Site plan and placement plan indicating solar system location and adjoining improvements.

Who do I contact about solar permits in Madison?

MGE customer service, phone 608-252-7000, email AskExperts@mge.com.

Disclaimers: This page is for informational purposes only and is not legal, engineering, financial, tax, or permit advice. GridPermit is not a solar installer, contractor, engineering firm, public utility, or government agency. Requirements, fees, and program terms change. Verify current requirements with City of Madison Building Inspection Division (Zoning and Building Inspection) and MGE before starting a project. Last verified 2026-08-13.

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