Aggregator – An entity registered with the Public Utility Commission that brings together a group of customers to buy electricity in bulk. Aggregators were set up by the PUCT (see definition below) to assist customers with their energy needs and help customers find a lower rate amongst the different Retail Electric choices. Aggregators utilize the bulk group of customers to leverage the REP (see definition below) to produce safer and cheaper rates by joining customers together into a “single purchasing unit”. Current Utilities is not a licensed aggregator, however Tremcor Energy was a licensed Aggregator and had been since 2003. The PUC does not allow aggregators access to their customer status in ERCOT. Aggregators are the only licensed players by the PUC that do not have access o ERCOT which has resulted in aggregation in Texas becoming a dismal failure.