Manager, Power Supply

The Manager, Power Supply provides leadership for the cooperative’s power supply strategy, portfolio optimization, commodity risk management, rate design, financial modeling, and large-load planning initiatives. Reporting to the Chief Power Supply Officer, this role ensures the cooperative maintains a reliable, affordable, and financially sustainable energy portfolio that serves the long-term interests of its member-owners.

This position is responsible for evaluating generation assets and power purchase agreements (PPAs), executing natural gas and power hedging strategies, supporting cost-of-service and rate design efforts, developing advanced financial models supporting the strategic power supply plan, and directing generation and transmission planning to support emerging large-load growth, including data centers.

Strategic Financial Modeling & Power Supply Planning

• Develop, maintain, and enhance integrated financial and production cost models supporting the cooperative’s long-term power supply strategy.
• Model impacts of generation investments, asset retirements, renewable additions, storage deployment, and demand-side programs.
• Provide scenario and sensitivity analysis to support executive decision-making
• Ensure modeling integrity, transparency, documentation, and internal controls
• Incorporate large, concentrated load scenarios (e.g., hyperscale and colocation data centers) into long-range planning models.
• Conduct sensitivity analysis for fuel costs, wholesale prices, capital expenditures, regulatory risk, and load forecast variability.

Generation & Transmission Planning for Data Centers and GreyStone’s Portfolio Optimization

• Lead generation planning to support high-density, high-load-factor data center development.
• Coordinate with Georgia Transmission Corporation and GreyStone’s engineering team to evaluate required upgrades, interconnections, and system reinforcement.
• Assess resource adequacy implications of large, concentrated loads and ensure compliance with GSOC’s capacity requirements.
• Facilitate RFP power supply process on behalf of data center growth and conduct rigorous economic analysis of power supply options and behind the meter solutions to meet desired ramp schedule
• Model incremental cost impacts and develop pricing strategies for large-load service.
• Support contract structuring for data center customers, including cost recovery mechanisms and risk mitigation provisions.
• Collaborate with commercial marketing and member services teams to align power supply capability with growth strategy.
• Evaluate new and existing power purchase agreements (PPAs), including pricing structures, contract flexibility, risk allocation, and credit exposure.
• Assess net present value (NPV), levelized cost of energy (LCOE), and long-term rate impacts.
• Make strategic recommendations to the Chief Power Supply Officer regarding long-term power supply procurement, contract renegotiations, and rate strategies.

Natural Gas & Power Hedging Strategy

• Develop and execute natural gas and wholesale power hedging strategies within approved risk limits.
• Utilize financial instruments including futures, swaps, options, and structured transactions.
• Monitor commodity markets and adjust hedge positions to manage volatility and protect rate stability.
• Measure hedge effectiveness and report exposure, mark-to-market impacts, and risk metrics.

Retail Rate Design & Contract Administration

• Coordinate cost-of-service studies with COO and CPSO ensuring equitable allocation of power supply and fixed costs across residential, commercial, industrial, and large-load rate classes
• Provide power supply cost modeling and financial impact analysis to support retail rate design decisions
• Collaborate with finance, operations and member services teams on the retail rate design strategy
• Evaluate time-of-use (TOU), demand-based, and economic development rate structures
• Analyze the rate impact of portfolio changes, hedging decisions, and large-load additions
• Support development and negotiation of retail service agreements for large-load customers, including data centers
• Oversee administration of large-load retail service contracts, ensuring compliance with contractual obligations and service terms
• Monitor contract requirements related to performance assurance, deposits, pricing provisions, cost recovery mechanisms, and operational requirements
• Develop financial models to calculate expected margins and overall financial impact of data center customers on the cooperative’s power supply portfolio and member rates
• Analyze revenue requirements, incremental power supply costs, transmission investments, and risk exposure associated with data center service agreements
•  Provide ongoing evaluation of contract performance and margins outcomes to support executive decision-making and future contract structuring
• Coordinate with legal, finance, engineering, and commercial marketing teams to ensure effective implementation and management of agreements
• Support board approvals with comprehensive financial and member impact analysis.

Financial & Risk Management

• Develop, monitor, and manage wholesale power purchased budgets
• Perform monthly reconciliation against actual expenditures, analyzing budget variances, and implementing strategies to minimize total power cost
• Benchmark budgeted financials against actual costs managing the wholesale power cost adjustment mechanism to ensure financial stability and cost recovery
• Develop, monitor, and update short – and long-term load forecasts to predict seasonal energy demand for both native and large load growth trajectories
• Oversee portfolio risk reporting including fuel supply diversity, concentration of generation shaft risk, gas pipeline concentrated risk, expected CODs for newly committed resources, and large-load concentration risk
• Coordinate with finance on long-range financial planning, retail rate planning, capital patronage allocation methodologies, and cost/margin reporting on behalf of large loads

Leadership & Organizational Development

• Lead and develop teams in power supply analytics, modeling, planning, and rate design.
• Recruit and provide direct supervision of a new Power Supply Data Analyst role to support departmental operations.
• Promote disciplined risk management, financial stewardship, and member-focused decision-making.
• Foster cross-functional collaboration across transmission planning, engineering, finance, and commercial marketing teams.
• Lead or participate in working groups within the cooperative Family of Companies (OPC, GSOC, GTC and GPEMC) to advocate for GreyStone’s position regarding capacity and transmission planning, reliability and grid resiliency energy policy, and other related industry topics
• Build and maintain strategic relationships with the Family of Companies, power supply marketers, data center developers, and community stakeholders

Safety and Corporate Standards

• Perform all work in a safe manner, encouraging others to do the same, and reporting unsafe situations, environments, and work procedures.
• Maintain working knowledge and abide by the Cooperative's Board Policies, Service Rules and Regulations as well as the Cooperative's various rate schedules and service charges.
• Complete all assigned work in an accurate, timely, and efficient manner.
• Maintain a neat and orderly work area.

• Bachelor’s degree in engineering, Finance, Economics, or related field required.
• MBA or advanced technical degree preferred.
• 5+ years of experience in electric utility power supply, generation economics, transmission planning coordination, commodity markets, or rate design.
• Advanced financial modeling and portfolio risk management expertise.
• Cooperative or G&T experience is strongly preferred.
• Advanced production cost and financial modeling capabilities.
• Deep understanding of wholesale power markets and retail rate design strategies.
• Expertise in natural gas markets and hedge strategy execution.
• Strong knowledge of resource adequacy and transmission planning principles.
• Ability to translate complex modeling and reliability considerations into strategic recommendations.
• Excellent executive-level communication (written and oral) and board presentation skills.
• Requires a valid Georgia driver’s license before employment.

• Must pass the Cooperative’s pre-employment physical, criminal background, and drug screen.
• Excellent interpersonal skills to interact with employees, members, and the general public.
• Develop an interest in the ideals and objectives of an organization which is concerned with the Rural Utilities Service and the conduct of its business in a cooperative form of business enterprise and to be in sympathy with same. Attitude in the position must reflect a willingness to cooperate, perform, and contribute to the department's goal of providing service to the total organization.
• Pursue a continuous program of self-development both inside and outside of work hours in furthering his/her knowledge to develop in the job and accept increasing responsibilities.
•  Proficiency with personal computers & Microsoft Office Applications (i.e., OUTLOOK, WORD, EXCEL, POWERPOINT).