The Energy Storage Association (ESA) began engaging directly in the Electric Reliability Council of Texas (ERCOT) stakeholder driven market redesign process. The Texas Energy Storage Alliance (TESA) had convened a group of industry members to work collaboratively; that effort has now been folded into the larger national organization. ESA is the forum for broad industry input that will ensure proposed rules will enable the advancement of utility scale energy storage technologies. ERCOT issued a white paper last December identifying the need to update and overhaul the ancillary services market that originated in the 1990's, before significant deployments of wind energy and other generation sources. ERCOT recognizes that a new approach to ancillary services could allow for more effective, efficient and reliable use of existing and new resources like energy storage.