The California Independent System Operator (ISO) and PacifiCorp announced that tariff amendments to expand the ISO's real-time energy scheduling market across multiple states in the West was approved by the Federal Energy Regulatory Commission (FERC). The new market, known as the energy imbalance market (EIM), is expected to increase resource efficiency, reduce costs and more effectively use renewable and conventional resources. Under the EIM, the California ISO will automatically dispatch the best resources to meet immediate changes in energy demands. The scheduled EIM go live is set for October 1, 2014. In addition, Las Vegas-based NV Energy has applied with their state regulator to begin participation in the new market beginning in October 2015.