Texas RE's 2025 Winter Weatherization Workshop will be held on October 1, 2025, beginning at 9:00 a.m. Central. This virtual-only workshop is intended for all stakeholders in the Texas Interconnection and will feature speakers from Texas RE and external entities.

Rachel Coyne is the executive chief of staff at Texas RE, where she oversees cross-departmental projects and manages the Reliability Standards program. Before coming to Texas RE she worked on the enforcement team at the Western Electric Coordinating Council (WECC). Rachel has a B.A. in economics from Rhodes College.

Blair Giffin is the manager of O&P Compliance at Texas RE. He joined the company in 2022 as an operations and planning compliance engineer with over 18 years of electric industry experience, having worked for MISO, SPP, LCRA, and Nextera Energy. Blair holds a BSEE from Louisiana State University and is a NERC certified Reliability Coordinator.

David Kezell is director of weatherization and inspection at the Electric Reliability Council of Texas (ERCOT). Over the last ten years he has also worked in Senior Director and Director roles at CPS Energy  and Seminole Electric Cooperative in Tampa, Florida respectively.  Previously he worked with WorleyParsons (now Worley) in several roles including Project Manager, Director of Construction Management, and General Manager of Chattanooga Operations. Earlier in his career he worked for an independent power producer and consulting engineering firms in the San Francisco Bay area. While there he helped to develop and execute new power projects and worked as an air quality compliance consultant.  He is a graduate of The Pennsylvania State University and Arizona State University and is a licensed Mechanical Engineer in California.

Therese Harris is the director of the infrastructure division at the Public Utility Commission of Texas. In this role she works closely with division's mapping, infrastructure analysis, and engineer managers to oversee work on infrastructure planning, operations, reliability and resiliency, and mapping issues that affect electric and water utilities. Her perview includes the PUCT's contract to analyze and review electric entities' emergency operations plans and reports on electric entity weather emergency preparedness. Additionally she contributes to the state's electricity supply chain map required by the Texas Senate.

Therese holds a master of arts degree in mineral resources from the Cockrell School of Engineering and a bachelor of science degree in geology from the University of Texas at Austin.

Kiel Lyons is a senior manager in the compliance assurance and certification group at NERC. In this position he manages operations, planning, cyber, and physical security technical subject matter experts responsible for ERO Enterprise compliance monitoring and certification programs. The compliance assurance and certification group’s primary focus is to provide oversight, guidance, and coordination in managing programs and processes to monitor, review, and evaluate the ERO Enterprise implementation of risk-based compliance monitoring and certification in support of BES reliability and security. Prior to joining NERC, Kiel worked as an electrical engineer in the Office of Electric Reliability at the Federal Energy Regulatory Commission (FERC). Kiel holds his BSEE from Geneva College in Pennsylvania.

Michael Kuhl is the manager of operations and planning monitoring at SERC Reliability Corporation. Prior to that role he worked as a compliance assessment specialist. Michael began his career in 1989 during the construction and start-up phases of W.H. Zimmer Station, a 1,300 MW supercritical unit and the world's first nuclear-to-coal conversion project. From there he became a control area operator and coordinator and went on to work in the electric reliability field.

Michael graduated from the University of Cincinnati with a B.S. in Chemistry. He is a certified internal auditor, a NERC certified system operator at the reliability coordinator level, and earned an undergraduate certificate in renewable energy from Clemson University.

Daniel Marr, PE, serves as the Lower Colorado River Authority’s vice president, transmission system operations. In his role Daniel leads several groups that provide operations support for LCRA Transmission Services Coordination, including the transmission system operators, operations engineering, outage coordination, system operator training and reliability engineering. Prior to taking this position, Daniel led a group responsible for providing operational engineering support, outage coordination and system operator training for LCRA TSC's 24/7 operations. With a strong focus on process improvement while providing excellent customers service, Daniel has led in the development of several improvements that have greatly impacted the way in which LCRA coordinates outages and meets regulatory requirements. He also led in the development and maintenance of LCRA TSC's blackstart plan. Daniel holds a bachelor of science degree in electric engineering from Texas A&M University.

Evan Shuvo is a senior reliability engineer at Texas RE with expertise in power system reliability and transmission operations. His background encompasses reliability assessment, transmission planning, and project leadership within the energy sector. He currently serves in the leadership team for the NERC Reliability Assessment Subcommittee which is responsible for its periodic energy, resource, and transmission adequacy assessments in North America. He performs research and interpretation of power system data to support inquiries and assessments related to reliability, resilience, and adequacy of the bulk power system in Texas. Evan has served various engineering roles at SERC Reliability Entity, Ameren, and Alliant Energy dating back over 20 years. He holds an electrical engineering degree from Iowa State University and prior certifications in NERC reliability coordinator system operation and project management.

Gilbert Herrera is the director of field operations for the critical infrastructure division (CID) of the Railroad Commission of Texas, where he is focused on ensuring the reliable and sustained operation of natural gas to prevent energy emergencies by ensuring adequate weatherization among gas companies. Before joining CID, Gilbert lead the field operations for plugging and abandonment of orpan wells for the Houstin district of the oil and gas division. Prior to joining the RRC, Gilbert was a field engineer with SLB for their well integrity and construction division. Gilbert holds a degree in mechanical engineering from the University of Oklahoma. 

Chris Coleman is ERCOT's has been ERCOT's chief meteorologist since 2012. Prior to joining ERCOT he worked in aviation, doing weather forecasting for the Minneapolis airport, and then retail doing long-range weather forecasting until he joined Exelon in 2008.

Robert Clark is an electrical engineer with a passion for grid reliability. He studied at North Carolina State University and earned his bachelor’s degree before pursuing a master's degree specializing in electric power systems engineering.

In 2014, Robert joined FERC, where he has since made significant contributions to projects including the Winter Storm Uri and Elliot inquiries. Robert served as a co-lead on the December 2023 blackstart study report.

Thomas Coleman has been in the energy industry for 35 years.  He started his career working for Tenneco where he worked in the natural gas transportation, marketing, and rates departments.  He later worked for Williams Energy, Bear Energy, and JP Morgan Energy where he worked as a natural gas and power trader and subsequently an originator serving as vice president of East Origination where he negotiated and closed power purchase agreements, asset management deals, and load serving deals.  Following JP Morgan, Mr. Coleman spent a decade as NERC’s chief technical advisor.  In this role he led natural gas policy and NERC’s risk mitigation program for natural gas and power interoperability.  He also served as the executive director of the Center for Grid Security at SAFE, where he developed and promoted policy changes to ensure a reliable and resilient power grid. He is currently a senior power advisor at ANL where he leads and manages projects that promote power grid reliability and resilience, focusing on the unique attributes of gas and power interdependence. Mr. Coleman holds a B.S. degree from the University of Florida and an MBA from Vanderbilt University.

Gerad Freeman is a senior engineer at NERC. His work focuses on scoping, constructing, and applying advanced engineering analyses and modeling to identify, understand, and communicate the reliability risks to North America’s Bulk Power System. Prior to joining NERC, Dr. Freeman led the system planning team at Pacific Northwest National Laboratory (PNNL) and was a lab staff detailee to the grid resilience program at DOE’s Grid Deployment Office. His research focused on both gas and electric system resilience planning and operations, drawing on his experience working in the natural gas distribution industry. He holds a Ph.D. in engineering and public policy from Carnegie Mellon University, a masters in alternative energy from the University of Rochester, and a B.S. in energy systems engineering, business, and finance from Penn State.