View the solar photovoltaic and renewable auction mechanism (PV RAM) project map and grid needs assessment (GNA) map

These maps are designed to help contractors and developers find potential project sites. The maps show electric transmission lines, distribution lines and substations in our service areas. They also list information such as hosting capacity, grid needs, operating voltages, line capacity and substation names.

The map does not guarantee that generators can interconnect at particular times and places. Many factors affect interconnection capability and costs, for example:

  • Distributed generation system size
  • Distributed generation system type, such as inverter or machine-based
  • Circuit load and substation and capability
  • Operating voltage

You can submit an Interconnection Application to our Generation Interconnection team at We'll determine your requirements and costs based on our review of your project's location, size and application date compared with other projects in the same area.

In addition, government-permitting procedures may limit the suitability of a particular site. These procedures are designed to minimize environmental and land use impacts. They're independent of our interconnection process.

Access the maps


  • The PVRAM map shows selected electric transmission lines, distribution lines and substations in our service area paired with general electric system information as well as hosting capacity analysis results.
  • The GNA map show assumptions and results of the distribution planning process that yield grid needs related to distribution grid services.
  • The ICA map is designed to help contractors and developers find potential project sites for distributed energy resources (DERs).
  • Contractors and developers use these map to find potential project sites.
  • Our electric system is dynamic. Circuit configurations on the distribution system change for various reasons. Examples include new loads, undergrounding projects, seasonal switching patterns, new circuits, voltage and reliability.
  • Over time, a location may produce different circuit results due to varying update frequencies of data.
  • You must log in to access each map.

Log in to view the PVRAM map

Log in to view the GNA map

Log in to view the ICA map

To learn more about using the ICA map, download the ICA Map User Guide (PDF, 2.5 MB).

PG&E will publish its 2019 GNA/DDOR data to the DRP Data Portal on September 1, 2019. The data that is currently on the portal is for the 2018 GNA/DDOR and will be replaced by the 2019 on September 1, 2019.

Data release disclaimer

Pacific Gas and Electric Company (PG&E) has a strong interest in enabling technologies, models, policies, and ways of thinking that advance public safety, system reliability, energy affordability, and clean energy adoption within its service territory. As such, PG&E supports the Distribution Resources Plan’s objectives including publishing a Grid Needs Assessment (GNA) report.

The data being released is PG&E intellectual property. By using this information parties agrees to:

  1. Recognize this information and all derivatives as the property of PG&E;
  2. Not utilize this information beyond the primary purpose of the GNA without the prior written consent of PG&E;
  3. While the GNA includes the best information currently available, PG&E makes no representation as to the accuracy or quality of the data provided, its fitness for the purpose intended, or its usability by the recipient; PG&E cannot be held liable for inaccuracies or the impact of decisions made on this information.

While PG&E supports GNA's scope as currently defined, PG&E cannot support the inappropriate use of this data that:

  1. Put the physical or cyber-security of the electricity grid or gas pipelines at risk;
  2. Violate customer privacy;
  3. Compromise sensitive market data; or
  4. Void company intellectual property, patents, or trade secrets.

PG&E's sharing of GNA or any other information is contingent on the above areas being aided or unaffected.

Frequently asked questions

Following are frequently asked questions (FAQ) and answers about our PV RAM project map.

Will PG&E provide the map in a Google Earth® file format or any other downloadable format?

At this time, we do not plan to make the map available in any other downloadable format. Following are the reasons for this decision:

  • The need to keep files that represent the electric system out of the public domain
  • The dynamic nature of our electric system, and the prospect of different users with varying files and system configurations
  • The method used to display the data and its associated volume

Will PG&E provide the information in the pop-up windows for electric distribution lines in a table format, such as Excel or comma-separated value (CSV)?

Some data is provided through links in pop-ups. We're considering providing information in a broader data portal as part of an ongoing project.

Why doesn't the map show the locations of existing distributed generators?

The California Public Utilities Commission (CPUC) doesn't require utilities to show the locations of existing distributed generators. Only the amount of the generation on a circuit is required. In addition, the distributed generators are not owned by PG&E. We don't have permission from distributed generators to show their facility locations. Therefore, the map is not configured to provide this type of information.