emPOWERing Young Professionals

Alexandra William’s extensive career experience in ERCOT includes contracting over 800 MW of renewable power purchases, managing the two largest demand response books and over 15 GW of power generation.   She joined ExxonMobil (XOM) in 2019, tasked with developing and expanding XOM’s participation in the power markets.  She is responsible for renewable power purchases, trading, growing the demand response portfolio and managing key relationships/accounts in ERCOT, CAISO and MISO.  Alexandra began her career at MP2 Energy on the real-time desk and later moved on to EDF Trading North America.  Alexandra is a NERC certified reliability coordinator and a graduate of the University of Houston with a B.A. in History and a B.S. in Political Science. 

For further information on Alexandra's accomplishments, please click here to see the press release announcing Alexandra as the recipient of the 2021 emPOWERing Young Professionals Award.

David Maggio has been directly engaged with the ERCOT market as an ERCOT staff member since 2007.  In his current role as Director of Market Design and Analytics, his group is primarily responsible for investigating ERCOT wholesale electricity market trends and design changes and for validating day-to-day wholesale market outcomes.  His work was recently focused on developing policy and rules for the implementation of real-time co-optimization of energy and ancillary services and the integration of energy storage resources.  Maggio has also played a key role in the evaluation of reserve requirements for the ERCOT region, the integration of intermittent renewable resources, operation and analysis of the congestion revenue rights market, and systems and rules development for the ERCOT nodal market.  He received his B.S. and M.S. degrees in Electrical Engineering from the University of Illinois at Urbana-Champaign in 2004 and 2006, respectively.

For further information on David's accomplishments, please click here to see the press release announcing David as the recipient of the 2020 emPOWERing Young Professionals Award.  

Katie Coleman is a Partner in the Austin office of O'Melveny & Myers.  She was previously a partner at Thompson & Knight, where she served as the Firm’s Government and Regulatory Practice Group Leader. Katie has more than a decade of experience representing large customers on energy matters in Texas and has extensive experience with both ERCOT’s competitive market and rate regulation under the PUCT. Katie also assists large companies with private contracting and infrastructure projects, including energy supply agreements, joint ownership agreements for privately owned electrical facilities, and generation project development.
 
Katie is a member of the Board of Directors for the Gulf Coast Power Association (GCPA) and is serving as President for 2020-2021. She previously served as President of the State Bar of Texas Public Utility Law Section for the 2016-2017 term. 
 
Katie has been recognized by The Best Lawyers in America® from 2018-2021, selected as “Lawyer of the Year – Energy Regulatory, Austin” by The Best Lawyers in America® for 2019, recognized by Chambers USA for “Energy: State Regulatory & Litigation” from 2015-2021, recognized by The Legal 500 US for “Energy Regulatory – Conventional Power” from 2017-2021, honored as a “Texas Rising Star” in Legislative & Governmental Affairs by Thomson Reuters for 2016-2021, and recognized as one of 23 statewide Texas Lawyer’s “Lawyers on the Rise” in 2018. She also received the Gulf Coast Power Association’s (GCPA’s) “emPOWERing Young Professionals Award” in 2019. 

For further information on Katie's accomplishments, please click here to see the press release announcing Katie as the recipient of the 2019 emPOWERing Young Professionals Award.  

Rebecca Zerwas is Division Director of Market Analysis at the Public Utility Commission of Texas (PUCT). Prior to this, she was Regulatory Affairs Manager at CenterPoint Energy where she provided regulatory support to the electric business unit.

Her utility career started as a Retail Market Analyst at the PUCT and then moved on to Wholesale Market Analyst. She subsequently joined NRG Energy where she further developed her skills in the electric utility regulatory field, moving from Regulatory Specialist to Regulatory Manager in three years. During her time at NRG Energy she was active in Electric Reliability Organization of Texas (ERCOT) issues being the Retail Market Subcommittee (RMS) Vice Chair for two years before becoming the RMS Chair in 2018. During these years, she provided leadership to her employers by providing expert witness testimony, analyses of financial implications of regulatory issues and interfacing with numerous industry groups and lobbyists. She has also been an active participant in GCPA activities. 

For further information on Rebecca's accomplishments please see the press release for her award announcement.