California Independent Service Operator (CAISO) Committee

WPTF's California Independent System Operator (CAISO) Committee was the first committee created by WPTF and has been going strong for 10 years. Originally, the committee focused on the CAISO transition from a zonal market to a nodal market in the CAISO's Market Redesign and Technology Upgrade (MRTU). Having proved successful at advocating for open and efficient market rules and for operational effectiveness and transparency, the committee continues to be a valued forum through which WPTF members can have a voice at the CAISO.

By attending stakeholder meetings and submitting comments, the CAISO Committee participates in market-related CAISO stakeholder initiatives. The committee also takes advantage of the CAISO Board's comment processes, and actively participates in the CAISO's Market Surveillance Committee meetings. Additionally, through the CAISO Committee, WPTF files comments and protests at the Federal Energy Regulatory Commission (FERC) and participates in FERC technical conferences and settlement meetings. Committee advocacy also occurs through one-one-one meetings with the CAISO staff and management, and through coalitions built between WPTF and other market sectors and consortia.

The WPTF CAISO Committee has earned its reputation as a credible, thoughtful, and active participant. The CAISO values the committee's input, in particular because the breadth of WPTF membership results in committee proposals that are balanced and robust.

Examples of where the CAISO Committee has been effective are numerous—below are some highlights:

  • With the committee's relentless pursuit of market-based pricing, the CAISO agreed to compensate suppliers for serving the CAISO's flexible ramping constraint commitments and redispatches, and to implement a Flexible Ramping Product.
  • Thanks to the CAISO Committee's advocacy, the CAISO initiated the Market Performance and Planning Forum to support in-depth discussions of issues that cross policy and market performance topics.
  • The committee's advocacy of transparency resulted in the CAISO's phased transparency improvement processes.
  • The committee's ongoing advocacy at FERC has maintained a virtual bidding platform in the CAISO's nodal market.

The CAISO Committee coordinates closely with WPTF's other committees. For example, it works with the Greenhouse Gas (GHG) Committee to ensure that GHG market design results in workable CAISO energy markets. In addition, the CAISO Committee works with the Western Electricity Coordinating Council (WECC) Committee to roll out Energy Imbalance Markets (EIMs), and with WPTF's activities at the California Public Utilities Commission (CPUC) regarding resource adequacy and utility procurement.

Contact Person

Ellen Wolfe coordinates WPTF's CAISO Committee. She has more than 25 years' experience with electric utilities and in the energy industry, and has been active with the CAISO since the 1990s, when the CAISO was being formed. Ellen dives in deep on technical issues, sees the "big picture," and works effectively with CAISO staff and other stakeholders.

Ellen has extensive experience in Western markets generally and in the Electric Reliability Council of Texas (ERCOT) in particular. She has performed detailed modeling activities; evaluated benefits and costs associated with the Regional Transmission Organization–West, WestConnect, ERCOT, and Southwest Power Pool; and developed tariffs and implementation processes for ERCOT and other ISOs. She has worked as an industry consultant since 1994, prior to which she had employment engagements with the U.S. Department of Energy's national labs and at the Rancho Seco nuclear power plant.

Ellen holds a Bachelor's degree in Electrical Engineering from the University of California, Davis, and Master's degrees in Management, and Technology and Policy from the Massachusetts Institute of Technology. Ms. Wolfe is a registered Electrical Engineer in the state of California.

Ellen Wolfe
Resero Consulting
9289 Shadow Brook Place
Granite Bay, CA  95746
Telephone: 916-791-4533

Archived Documents