The California ISO on Nov. 6 announced a reorganization of its executive level leadership structure that will bring several key functions together under the newly created position of senior vice president and chief operating officer.

Mark Rothleder, currently CAISO's VP of market policy and performance, will assume the role Nov. 9.

Rothleder was promoted to COO Oct. 13 with the announcement that Petar Ristanovic, VP of market policy and performance, and Eric Schmitt, VP of operations, will both retire at the end of 2020.

The senior VP and COO will be responsible for key functions including operations, planning, market policy, and technology and program management. Rothleder's previous positions include executive director of market analysis and development, and principal market developer. He is CAISO's longest serving employee.

The reorganization of CAISO's leadership structure is being overseen by CEO Elliot Mainzer, who took over upon the retirement of former CEO Steve Berberich Sept. 30. The restructuring includes six other promotions, interim appointments, and role expansions.

The newly assembled team will "enable Mainzer to focus on strategy, culture and stakeholder engagement while strengthening the ISO's capacity to effectively integrate new resources and enhance reliability during the transition to a decarbonized electricity grid," CAISO said in a Nov. 6 news release.

"This restructuring will give us the opportunity to look at our roles and responsibilities from a fresh perspective and enhance alignment and integration from market policy to system dispatch," Rothleder said in the release.

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Aria covers California and the Southwest from Austin, Texas. Her work has appeared in a variety of popular and academic publications.