As of 2/25/2025, the URDB V3 API no longer returns a list of rates given a zip code:

https://developer.nrel.gov/api/utility_rates/v3.json?api_key=DEMO_KEY&address=97202

The 'address' parameter is no longer supported. Pass in the 'lat' and 'lon' parameters instead. Email notification about this change was sent to affected API users on 2025-02-25. For further questions or assistance, contact us at https://developer.nrel.gov/contact/.

Going forward, the API requires lat/lon as input:

https://developer.nrel.gov/api/utility_rates/v3.json?api_key=DEMO_KEY&lat=45.486&lon=-122.641

Need to update OpenEI Utility Rate Database window:

Options are:

1. Remove search by zip code.
2. Replace search by zip code with search by lat/lon

Note that you search Google Maps for a zip code and right click to get a lat/lon for that zip code.