Solar API release notes

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This page is updated with each new release of the Solar API. The changelog lists releases by date and includes any new features, bug fixes and significant performance improvements.

See the Getting Started documentation for information on how to get started using the Solar API.

November 13, 2023

Expanded Solar API coverage

Medium-quality data coverage (requests made with requiredQuality=MEDIUM and corresponding responses with imagery_quality: 'MEDIUM') has been expanded to cover new areas in the following regions:

  • United States: AR, AZ, CT, DC, GA, ID, IN, KY, LA, MD, MI, MS, NC, NH, NJ, NY, NV, OH, OK, PA, SC, TN, VA, WV
  • Canada
  • Poland
  • Austria
  • Switzerland

For more details, see the Solar API coverage map.

October 24, 2023

Expanded Solar API coverage

Medium-quality data coverage (requests made with requiredQuality=MEDIUM and corresponding responses with imagery_quality: 'MEDIUM') now includes most of California, Texas, Massachusetts, and Illinois. For more information, see the Solar API coverage map.

August 08, 2023

Solar API

Announcing the General Availability (GA) release of the Solar API. See the Release Notes for information about this release and for all other releases.

If you are a new user, see Set Up in the Google Cloud Console to start the installation process.


In July of 2023, Google will release a change to the format of URLs returned in the response to a call to a Data Layers request. To prepare for this release, write your apps to support both URL formats. By preparing for the new URL format now, your apps will not be affected by this update.

For more information, see Data Layers request.


  • Launched a restricted preview of the new Solar API, hosted as part of Google Maps Platform on Google Cloud. This new API will replace the now-deprecated EarthEngineSolar API, and, to minimize disruption, we encourage you to migrate as soon as feasible.
    • Revamped project-level access
      • To get access, please reach out to your contact on the Solar API team.
      • Access is manually granted on a per-project basis, and is independent from access to the EarthEngineSolar API.
    • Added new documentation
    • Set new terms of service
    • Integrated with Cloud Monitoring and Cloud Billing
      • Calls to Solar API endpoints will begin appearing on projects' Billing Dashboard (with a 100% discount during the Preview).
    • Renamed endpoints and methods
      • ->
      • solarInfo:get -> dataLayers:get
      • buildings:findClosest -> buildingInsights:findClosest
    • Configured new quota limits
  • Deprecated the existing EarthEngineSolar API.
    • The deprecated EarthEngineSolar API will continue to work while the new Solar API is in Preview.
  • Expanded medium-quality (imagery_quality: 'MEDIUM') data coverage
    • Expanded medium-quality data availability for Germany, the UK, France, Spain, Italy, and Florida.
    • Expanded medium-quality financial data availability (via BuildingInsights) for a significantly larger portion of Florida.


  • Added different quality levels of data.
  • Added quality level to returned data.
  • Added ability to specify the required quality level.


  • Added dataset specifier for early access to non-production data.
  • Added specification of panel parameters (width, height, name, place, capacity, lifetime).
  • Added height of roof segments.
  • Added information about building ground footprints.
  • Added information about unsegmented roof size.
  • Added panel-by-panel production values.


  • Added bounding boxes to building and roof segment structures.
  • Added segment index to roof segment summaries, to unambiguously link each summary to more detailed information.
  • Added documentation for new raster endpoint which will allow access to imagery and detailed solar potential information.


Initial release.