The NW Solar Communities Permitting Work Group developed “Permitting Packets” – information, examples, and checklists  to support jurisdictions in implementing their respective state codes.

The work group also developed template one line diagrams in cooperation with utilities, so that the same diagram meets the needs of electrical permitting authorities, utility interconnection managers, and state incentive issuers.

Permitting Best Practices

The following practices were developed by NW Solar Communities in consultation with building code officials, solar installers, and industry advocates. Take the Permitting Best Practices Questionnaire to see how your jurisdiction can save time and money, while promoting solar business!

1. Adopt a Permit Checklist for Solar Installations

Jurisdictions should provide a checklist of permit requirements to ensure that applications are complete.


2. Establish Reasonable Building Permit Fees

Jurisdictions’ building permit fees should not exceed the amount necessary to cover the costs of administering and enforcing the permit process. Set a flat fee for prescriptive (standard) installations. Consider calculating the permit fee for non-prescriptive installations based on valuation of the structural components and labor only, excluding the value of the solar modules and inverters, that are not part of the structural review.


  • The City of Hillsboro exempts renewable energy devices from city permit fees. Since renewable energy permits are a small part of overall permitting, the impact to funding for the Building Department is minimal.
  • Clackamas County charges a $190 flat fee for prescriptive project permits, based on 2 hours of time. Non-prescriptive solar permit fees are based on the total value of the project excluding solar panel and inverter costs.

3. Provide Solar Permit Information Online

Information on fees, requirements, and the permit process should be easily accessible on your jurisdiction website. A solar-specific web page may include:

  • solar permit application checklist
  • solar permit fee information
  • contact information for solar-related permitting questions
  • state, federal, and or/utility incentive information
  • links to helpful educational websites


4. Train Permit Staff in Solar Installations

Training building department staff and inspectors on the specific concerns for solar installations helps to reduce the time and cost of permit issuance and ensures projects are reviewed consistently. In addition, cross-training of building and electrical inspectors allows the inspection of solar installations to be completed in a singe visit rather than two separate visits.


  • The City of Eugene Building Permit Services is cross-training inspectors to complete both the building and electrical portions of a solar inspection in a single visit.
  • In Oregon, the Building Codes Division is the sole provider of continuing education to maintain inspector certifications.  To view a list of scheduled trainings or request a training, go to:
  • In Washington, WSU Extension Energy Program provides training for building officials, including training on the solar portion adopted in 2014.

5. Implement Online or E-permitting System

An online permitting system can significantly reduce time for installers and staff who would otherwise need to schedule in-person appointments. A fully online system would enable all aspects of the permit process – application submittal, plan review, fee payment and delivery of approved permits via email or a website, within a short period of time.   In Washington, there is no state-wide platform, but local jurisdictions are adopting systems tailored to their specific needs.


  • The City of Bellevue is one of 17 jurisdictions in Washington that use the intergovernmental platform,
  • The City of Edmonds developed their own in-house solution for online permitting.
  • The Oregon Building Codes Division offers an e-permitting system, including solar, that Oregon jurisdictions can subscribe to.
  • The City of Eugene Building Permit Services tested a simple electronic review process for prescriptive installations, before implementing a full plan-review and permit issuance website. Installers submitted their permit applications and plans via email. The plans were reviewed electronically, fees collected over the phone, and the approved plans were emailed back to the customer the same day. This simple process saved time and Eugene will launch full e-permitting in October 2014.

Background Information:

View results from the survey of permitting practices in each state:

Additional Resources

Model Inspection Checklist for Rooftop PV Systems

Released in September of 2013, the Interstate Renewable Energy Council, Inc. (IREC) developed a model Inspection Checklist for Rooftop Photovoltaic (PV) Systems for use by municipalities across the United States.

Webinar | Expedited Permitting for Solar PV

This webinar covered a new, streamlined process that a team of four cities has developed to make the permitting process for standard rooftop solar simple, fast, and cost effective for both reviewing jurisdictions and permit applicants. Delivered June 4, 2013.

Webinar | Standardizing and Simplifying Permitting for Rooftop Solar Systems: Can We Do Better Together?

This webinar covered the approaches the team is currently working on to streamline and standardize the permitting process for rooftop PV systems. Delivered October 30, 2012.

Report | Streamlined Permitting for Solar PV

This report describes how four Washington cities are taking steps to lower the cost of solar in their communities.  The report covers best practices and recommendations on how other jurisdictions can streamline their solar permitting process and attract solar business. Published October 9, 2012.

Report | Expedited Permit Process for PV Systems

The Solar American Board for Codes and Standards permit process takes advantage of the many common characteristics inherent in most small‐scale PV systems to streamline the application and award of permits. Published July 2012.

Report | The Impact of City-level Permitting Processes on Residential PV Installation Prices & Development Times

This report by the Lawrence Berkeley National Laboratory uses an empirical analysis of solar systems in California cities to quantify the costs imposed by city-level permitting processes on both the time and expense of the PV development process.  Published in April 2013.

Report | Benchmarking Soft Costs for U.S. PV Systems Using a Bottom-Up Approach & Installer Survey

This report by the National Renewable Energy Laboratory presents non-hardware balance-of-system costs for residential and commercial PV systems in the U.S. Published October 2013.