The Houston, Texas energy utility provides electricity service to more than 2 million customers. Its usage history service gives automated access to customer billing history and electricity usage as measured by interval data recorder (IDR). It is intended to encourage involvement by third-party information providers who have customer permission to access electricity usage information.
API methods support contact and validation of the third-party system's information access, along with provider account management. Methods also allow retrieval of usage history for the account specified in the request by the validated application.