Metering and telemetry ensure operational accuracy
Accurate metering of electricity generated or consumed provides key data inputs for accurate settlement calculations. Direct measurement of a generator or load participant through telemetry allows the ISO to manage and monitor power generation in real-time.
Process and requirements
Operating procedures - 5700 metering process
Meter data represents the energy generated or consumed during a settlement interval. The ISO, ISO metered entities, and scheduling coordinator metered entities follow prescribed processes and procedures to ensure the data is settlement quality. These procedures complement, but do not replace, section 10 of the ISO Tariff and Business Practice Manual for Metering.
Additional information, required forms and lists for metered entities
Meter data submission and reporting
Specifications for submitting and retrieving meter data and instructions using the Operational Meter Analysis and Reporting (OMAR) system.
Operational Meter Analysis and Reporting (OMAR)
Scheduling coordinator self audit of settlement quality meter dataScheduling coordinators must annually complete a self-audit of settlement quality meter data processes. This requires examining meter data processes to demonstrate appropriate controls for accurate reporting.
Qualified reporting entityThe role of the Qualified Reporting Entity (QRE) is to submit meter data associated with renewable energy on behalf of ISO Metered Entities (ISO Polled) using the WREGIS application.
Station power programStation power — the energy used to operate auxiliary equipment and other load that is directly related to the production of energy — can be converted from retail service to wholesale service.
Generating units and load participants must establish and maintain a data processing gateway between plant facilities and the ISO energy management system for the purpose of generation control and monitoring. The ISO requires direct telemetry of participating generators and load by installing a remote intelligent gateway (RIG) for generating units providing regulation energy or a data processing gateway (DPG) or other ISO-approved technology for resources providing non-regulation ancillary services or supplemental energy.
The ISO and its market participants must adhere to rigorous requirements to help ensure the integrity and confidentiality of commercially sensitive or proprietary information and data, as well as to protect the ISO grid and its assets.