Solar/Wind/Battery Interconnections

A TDPUD Interconnection Agreement is required for any residential power system that can push power back onto the electric grid, including batteries, solar power system and wind power systems.

It's important that TDPUD has information about this equipment on record so that we can properly manage our electric distribution system. For TDPUD, it's necessary so we can monitor and predict our electric load accurately and operate our system safely. For the customer, we want to make sure you're on the most cost-beneficial rate for your account, which for customers with power generation or storage systems is often our Time-of-Use Electric Rate.

See below for the step-by-step process for applying for an Interconnection Agreement, as well as a list of requirements for the application. The Town of Truckee requires a separate permitting process for these systems. Visit their website for additional permitting and fee details.

Requirements for Interconnection

• Solar-Wind-Battery Project Review & Inspection Agreement
• Solar-Wind-Battery Application
• Site Plans with Cut Sheets
• $550 Fee
• Equipment documentation

How to Obtain a TDPUD Interconnection Agreement

1. Submit Interconnection Application and supporting documents
2. • Interconnection Application
   • Solar-Wind-Battery Project Review & Inspection Agreement
   • Interconnection Agreement for Net Energy Metering
   • Site Plans including Cut Sheets (all documents must be combined and submitted in a single PDF file)
2. Engineering Review: the TDPUD electric engineering team will review your application to ensure that your plans meet the established standards.
3. System Installation: following engineering approval, you may begin installation of your system.
4. Site Inspection: once construction is complete, final approval must be given before the system may be energized. A TDPUD electrician will come to your house to inspect the installation, to ensure the installation was done properly and all standards were met.
5. Customer Signs Interconnection Agreement: following the site inspection, TDPUD will send the customer a completed interconnection agreement for you to sign and return to TDPUD.
6. Billing Systems Updated: TDPUD will update your electric rate and reprogram your electric meter to be bidirectional.
7. TDPUD Signs Interconnection Agreement: TDPUD will finalize and sign the interconnection agreement and return it to you.
8. Permission to Operate Granted: once you receive the signed interconnection agreement from TDPUD, you are free to operate your system.

Have a question? Email us at interconnection@tdpud.org

Additional Details

• Submit your application documents to interconnection@tdpud.org and reference the service location in the subject line.  
• Deposits may be paid at the new construction counter of our office, or mailed to Truckee Donner PUD, Attn: Solar Agreement, 11570 Donner Pass Rd, Truckee, CA  96160.  Please reference the service address and account number.