If you are interested in installing your own electric generating system – such as a wind turbine, solar system or biogas system – you will need to follow several steps to "interconnect" to the WPS electric distribution system.

The following information will guide you through the steps and requirements to ensure everybody's safety.

The interconnection process can seem overwhelming at first, but WPS partners with Focus on Energy to help connect you with experts on renewable energy systems and Cash-Back Rewards for installations.

For systems 20kW or less

  1. Start the interconnection process
    Contact Corey Kuchta at 920-433-2913 or CJKuchta@wisconsinpublicservice.com to review your project.
  2. Review the parallel generation rate
  3. Review and understand the rules and requirements
  4. Complete the interconnection application and mail to: Attn: Corey Kuchta
    Wisconsin Public Service
    P.O. Box 19001
    Green Bay, WI 54307-9001
  5. WPS reviews the application
     
    WPS will review your application to determine if it contains all the information needed to begin the interconnection process. WPS will contact you about the status of your application. If the application is incomplete, additional information will be requested.
  6. WPS determines if a distribution study is needed
     
    After your application is considered complete, WPS will determine if a distribution study is needed. This study is to assess the level of impact your system will have when it's connected to the grid.
     
    If the study is needed, WPS will inform you about the cost of the study. After you have provided written authorization to proceed and paid the applicable fee, we'll complete the study.
  7. Discuss distribution study and review interconnection options and costs
     
    Once the distribution study is complete, WPS will contact you to discuss all of the options available – along with their associated costs – and the timeline for the interconnection of your parallel generation system.
  8. Install parallel generation and distribution system upgrades
     
    You will need to install your generating equipment within a mutually agreed upon timeframe. After receipt of payment for the agreed-upon interconnection costs, WPS will perform all work needed to upgrade the distribution system to accommodate your parallel generation system.
  9. Sign the interconnection agreement
     
    Before parallel operation can begin, both you and WPS will need to complete and sign a standard interconnection agreement and power purchase agreement.
  10. Test the system
     
    When the installation of your system is complete, send Certificate of Compliance or local inspector verification to Corey Kuchta and notify local WPS engineer so we can witness or verify the system testing. This could include:

    • Witnessing commissioning tests.
    • Performing anti-islanding tests.
    • Verifying the protective equipment settings.

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For systems greater than 20kW

  1. Start the interconnection process
     
    Contact Corey Kuchta to review your project:
    Phone: 920-433-2913
    Email: CJKuchta@wisconsinpublicservice.com
  2. Select parallel generation rate rreference
  3. Review and understand the rules and requirements
  4. If the application is for over 20kW, complete the interconnection application
     
    Complete the Application Form 6028 and mail it with the applicable review fee as described in PSC-119 to:
     
    Attn: Corey Kuchta
    Wisconsin Public Service
    P.O. Box 19001
    Green Bay, WI 54307-9001
  5. WPS reviews the application
     
    WPS will review your application to determine if it contains all of the information needed to begin the interconnection process. WPS will contact you about the status of your application. If the application is incomplete, additional information will be requested.
  6. WPS determines if a distribution study is needed
     
    After your application is complete, WPS will determine if a distribution study is needed. This study assesses the level of impact your system will have when connected to the grid.
     
    If the study is needed, WPS will inform you about the cost of the study. After you've provided written authorization to proceed and paid the applicable fee, we'll complete the study.
  7. Discuss distribution study and review interconnection options and costs
     
    Once the distribution study is complete, WPS will contact you to discuss the all of the options available – along with their associated costs – and the project timeline for the interconnection of your parallel generation system.
  8. Installation of parallel generation and distribution system upgrades
     
    You will need to install your generating equipment within a mutually agreed upon timeframe. After receipt of payment for the agreed-upon interconnection costs, WPS will perform all work needed to upgrade the distribution system to accommodate your parallel generation system.
  9. Sign the interconnection agreement
     
    Before parallel operation can begin, both you and WPS will need to complete and sign a standard interconnection agreement and power purchase agreement.
  10. Test the system
     
    When the installation of your system is complete, send Certificate of Compliance or local inspector verification to Corey Kuchta and notify local WPS engineer so we can witness or verify the system testing. This could include:

    • Witnessing commissioning tests.
    • Performing anti-islanding tests.
    • Verifying the protective equipment settings.

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Other parallel generation resources

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WEC Energy Group