ERCOT

ERCOT ESR Public Data API

Energy Storage Resource public data, launched May 29, 2025 per the ERCOT Public Data API release notes, beginning with four-second ESR charging MW telemetry (GET /rptesr-m/4_sec_esr_charging_mw). Documented in the ERCOT API Explorer as the esrapi-apim-api product. No machine-readable specification is published for this API in ERCOT's public api-specs repository, and no base URL was independently confirmed, so none is asserted here. Access follows the same subscription-key plus B2C ID token model as the Public Data API.

GitHub

Documentation

📖
APIReference
https://apiexplorer.ercot.com/api-details#api=esrapi-apim-api
📖
Authentication
https://developer.ercot.com/applications/pubapi/user-guide/registration-and-authentication/

Other Resources

🔗
ChangeLog
https://developer.ercot.com/applications/pubapi/relnotes/

API entry from apis.yml

apis.yml Raw ↑ 
aid: ercot:ercot-esr-public-data-api
name: ERCOT ESR Public Data API
description: Energy Storage Resource public data, launched May 29, 2025 per the ERCOT Public Data API
  release notes, beginning with four-second ESR charging MW telemetry (GET /rptesr-m/4_sec_esr_charging_mw).
  Documented in the ERCOT API Explorer as the esrapi-apim-api product. No machine-readable specification
  is published for this API in ERCOT's public api-specs repository, and no base URL was independently
  confirmed, so none is asserted here. Access follows the same subscription-key plus B2C ID token model
  as the Public Data API.
humanURL: https://apiexplorer.ercot.com/api-details#api=esrapi-apim-api
tags:
- Energy Storage
- Batteries
- Telemetry
- Energy Markets
properties:
- type: APIReference
  url: https://apiexplorer.ercot.com/api-details#api=esrapi-apim-api
- type: ChangeLog
  url: https://developer.ercot.com/applications/pubapi/relnotes/
- type: Authentication
  url: https://developer.ercot.com/applications/pubapi/user-guide/registration-and-authentication/