The use of sub-metered data for event performance calculations is permitted for virtual power plant and vehicle-grid-integration aggregators. The use of sub-metered data will be approved by PG&E on a case-by-case basis. Aggregators that elect to use sub-meter data for settlement purposes shall also comply with approved submetering services as outlined in the Aggregator Agreement. The election to utilize sub-metering will apply to all locations within the aggregation. During the aggregator enrollment process, the aggregator needs to choose if the event performance will be calculated at the PG&E meter or sub-meter, which cannot be changed until the next calendar year.