Change or renew your interconnection agreement with PG&E
Learn how to execute a new Power Purchase Agreement (PPA) when your old one expires
As a qualifying facility (QF), you sell your electricity to public utilities and generate about 25 percent of our energy supply. Deregulation allows QFs, like you, to choose the markets in which you sell the electricity you generate.
You must execute a new PPA and replace your current interconnection agreement with us, if:
- Your current PPA is expiring.
- You plan to sell power into additional or different markets.
The type of PPA you choose and whether you connect at the transmission level (60 kV and above) or distribution level (less than 60 kV), determines the type of interconnection agreement you sign with us.
This page explains the different types of interconnection agreements and the resources available to help you renew your agreement with us.
Our Generation Interconnection Services (GIS) offers free interconnection outreach, education and services. GIS helps customers manage the process.
PLEASE NOTE: The renewal process can be lengthy, so we recommend that you begin the required steps at least six months before your current PPA expires.
Explore the Interconnection Agreement renewal process
Find out how to renew your agreement and get a list of the items that you must provide to us.
Download Wholesale Generation Interconnection Services Wholesale Qualifying Facilities Conversion (PDF, 158 KB)
Understand your Interconnection Agreement
Three types of agreements detail the terms of your interconnection with PG&E:
- A California Independent System Operator (CAISO) Tariff Agreement.
- A rule 21 agreement.
- A wholesale distribution tariff (WDT) Agreement.
Interconnect with a CAISO tariff agreement
Following are guidelines for a CAISO tariff agreement:
- This agreement type is for transmission customers with QFs of 60 kV or greater.
- If your QFs are larger than 20 MW and are interconnected to the CAISO-controlled grid, you must execute a large generator interconnection agreement (LGIA). Download Large Generator Interconnection Agreement for Interconnection Requests in a Queue Cluster Window (PDF, 302 KB).
- If your QFs are smaller than 20 MW and interconnected to the CAISO-Controlled grid, you must execute a small generator interconnection agreement (SGIA). Download Small Generator Interconnection Agreement (PDF, 153 KB).
- This three-party agreement is between you, CAISO and PG&E.
- Select any PPA if you intend to sell power under California Public Utilities Commission (CPUC) jurisdiction. Visit Procurement Processes.
- You can also select any PPA if you intend to sell power under Federal Energy Regulatory Commission (FERC) jurisdiction. Visit Qualifying Facilities.
- CAISO oversees your agreement.
Interconnect with a Rule 21 Agreement
Following are guidelines for a Rule 21 Tariff Agreement:
- This agreement is for distribution customers with QFs of less than 60 kV. Download Interconnection Agreement for an Existing Small Generating Facility Connecting to the Distribution System Under Rule 21, Form 79-1136 (PDF, 305 KB).
- If your QFs are interconnected to the PG&E-controlled grid, you must execute a rule 21 or wholesale distribution tariff agreement with us.
- LGIA and SGIA are two-party agreements between you and PG&E.
- The CPUC oversees your agreement.
- A Public Utility Regulatory Policy Act (PURPA) PPA is eligible for a Rule 21 Agreement.
- An example of a PG&E PURPA PPA is the AB 1613 program. Visit Standard Contracts for Combined Heat and Power Facilities pursuant to AB 1613.
Interconnect with a WDT agreement
Following are guidelines for a WDT tariff agreement:
- For distribution customers with QFs of less than 60 kV.
- If your QF is interconnected to the PG&E-controlled grid, you must execute a rule 21 or wholesale distribution tariff agreement with us.
- If your QF is larger than 20 MW, you must execute an LGIA. Download Attachment H: Large Generator Interconnect Agreement (LGIA) (PDF, 444 KB).
- If your QF is smaller than 20 MW, you must execute an SGIA. Download Attachment F: Small Generator Interconnection Agreement (SGIA) (PDF, 273 KB).
- LGIA and SGIA are two-party agreements between you and PG&E.
- The FERC oversees your agreement.
- Use a WDT agreement with any PPA.

Contact us
If you have questions about the renewal process, we’re here to help.
Email:wholesalegen@pge.com.
Get additional resources
Following are additional sources of information related to Wholesale Qualifying Facilities Conversion:
- Read our Getting Started Guide. Download Wholesale Qualifying Facilities Conversion (PDF, 158 KB).
- Learn about our Wholesale Distribution Tariff. Download Pacific Gas and Electric Company Wholesale Distribution Tariff (WD Tariff) (PDF, 1778 KB).
- Read more about California ISO regulations. Visit Diligent oversight ensures a competitive market.