O&P REF Steering Committee Members

Brad Arnold
Manager, Policy & Compliance
Ameren Missouri


Brad Arnold is the Manager of Policy and Compliance for Ameren Missouri.  Mr. Arnold has worked in the energy industry for over 13 years, with experience in power trading, load forecasting, Financial Transmission Rights, and asset optimization.  In his current role, Mr. Arnold leads the Ameren Missouri Generation NERC Compliance and Market & Policy groups.  His responsibilities include business area oversight and coordination of reliability standards compliance activities.  Mr. Arnold has held elected leadership roles in both the SERC and MISO stakeholder communities, and actively participates in NERC, SERC, MISO, and industry groups and seminars to stay current on both ongoing and developing compliance issues.

Prior to joining Ameren, Mr. Arnold worked in Financial Operations at the Boeing Company and in Regulatory Compliance at A.G. Edwards & Sons, Inc.

Mr. Arnold has a B.S. in Finance from Missouri State University and an MBA from St. Louis University.  He also holds the Project Management Professional (PMP) certification from the Project Management Institute.

Andy Ali 
Lead Compliance Analyst  
Duke Energy


Andy's career started in the US Navy as a gas turbine technician and instructor. Transitioning to the civilian sector, Andy applied his training and skills in the utility industry as an auxiliary operator and generator control room operator at a 225 MW Cogen and 550 MW combined cycle station. Andy transitioned from O&M to NERC Compliance and Natural Gas Pipeline Compliance which includes compliance management, risk management and auditing.

Andy has been in a compliance role for the last 12 years and has provided compliance support from within the business unit (generation and transmission) and from the oversight role (corporate compliance). He is currently the Lead O&P Corporate Compliance Analyst for Duke Energy Florida (DEF) and provides support and direction from the corporate level. He is the interface and led numerous audits with differing regulatory agencies/bodies i.e. WECC, SERC, FRCC, DOT, PHMSA.

He has served on industry committees such as the NATF CPG Core Team now the RCC Team. Andy has an MBA and MSM from Colorado State and has worked previously with Edison Mission Operations and Maintenance and NRG Energy.

Greg Davis
Regulatory Compliance Manager
Georgia Transmission Corporation


As the Regulatory Compliance Manager of Georgia Transmission Corporation (GTC), Greg Davis guides GTC in maintaining compliance with the Electric Reliability Organization Standards. He identifies and evaluates all new or modified reliability standards proposed by NERC and SERC, and assists in the evaluation and understanding of each requirement to ensure compliance readiness. Greg also maintains GTC’s program to monitor processes, procedures, guidelines and documentation to ensure compliance. 

During his time as a Compliance Manager, Greg has represented GTC in NERC and SERC conferences and has been a member of the SERC Protection and Control Sub Committee along with serving on the SERC Standard drafting team for SERC Standard PRC-006-1 Automatic Underfrequency Load Shedding Requirements. Over Greg’s 20 year career, he has worked in various Electric Utility disciplines from relay maintenance, system protection, bulk planning, and ERO compliance. 

Greg is known for his ability to work cooperatively, and has the knowledge and experience to be a valuable member of the Registered Entity Forum.

Bill Thigpen
Supervisor of Compliance Support
PowerSouth Energy Cooperative


Bill Thigpen is currently Supervisor of Compliance Support for PowerSouth Energy Cooperative. PowerSouth Energy Cooperative serves the energy needs of 16 electric Cooperatives and four municipal electric systems in Alabama and Northwest Florida. Mr. Thigpen has over 29 years of experience in the utility industry, having worked in PowerSouth’s Energy Control Center as a System Operator for almost 18 years, followed by 11 years as the Energy Control Center Supervisor. Mr. Thigpen began working in the Compliance Support Department in June of 2015. Compliance Support’s main role is to facilitate PowerSouth's compliance with NERC Standards and to ensure that sufficient internal controls are in place to maintain that compliance.

Mr. Thigpen has a Bachelor of Science degree in Electrical Engineering from Auburn University. He maintains a NERC System Operator Certification. In his previous role as Energy Control Center supervisor, Mr. Thigpen was an active member of the SERC System Operator Subcommittee (SOS). Mr. Thigpen participates in NERC, SERC, and industry seminars and conferences to maintain compliance awareness. Mr. Thigpen has also worked on several SERC Audits as an Industry Subject Matter Expert.