IESO Retrofit System API
A web service API for the Retrofit program under Save on Energy, IESO's conservation and demand management portfolio, allowing participants to integrate with the Retrofit application and project workflow. SPEC-188 documents it on the same Online IESO Appian platform (https://online.ieso.ca/suite/webapi/) using API-key authentication via HTTP Basic, an Appian-API-Key header, or a Bearer token. Access requires an IESO-issued API machine account; there is no public signup and no anonymous endpoint.