Energy Systems Engineer - Modeling & Regulatory Compliance

Our present and future success depends on the creative and dedicated people of our company who demonstrate the principles outlined in the APS Promise : Design for Tomorrow, Empower Each Other and Succeed Together.

If you think you are the right match for the following opportunity, apply after reading the complete description.

Summary

Energy Systems Engineer - Modeling & Regulatory Compliance (Business Consultant, Resource Management) provides data analysis and modeling functions including identification of resource needs and selections, evaluating wholesale markets, planning and assisting with system operations, assessing other business or operational plans or items utilizing advanced qualitative and quantitative techniques, and regulatory support.

Develop resource plan alternatives based on market trends and conditions, wholesale market changes or other analytical findings critical to the business.

What your day will be like :

Daily support of power systems, energy markets, and regulatory frameworks.

Utilize IRP modeling software (e.g., PLEXOS, Aurora, Strategist, SERVM ) to develop and maintain energy models.

Conduct simulations to assess the impact of various scenarios on power system operations and performance.

Analyze complex datasets using advanced tools such as Python, R, or SQL to extract actionable insights and support decision-making.

Ensure compliance with applicable codes, standards, and regulations related to energy systems and power markets.

Monitor changes in regulatory frameworks and assess their potential impact on modeling and planning processes.

Prepare and review documentation to support regulatory filings and compliance reports.

Minimum Requirements

BS / BA Degree in business, engineering, economics, finance, information technology, mathematics, physics or similar quantitative field plus eight (8) years related business experience, or an equivalent combination of education and experience with demonstrated comparable knowledge and abilities.

Knowledge of principles of economic unit commitment / dispatch, wholesale market operations and the functional and economic characteristics of Company power resources and the interconnected system is desired.

Working knowledge of power / energy / gas markets including contracts, and utilization within a power plant.

Must have strong communication, presentation and writing skills. Must be able to lead teams in evaluations and implementation of solutions.

Must be able to work with key internal and external stakeholders and all levels of management.

A high level of proficient computer skills including a thorough knowledge of a commonly used industry programming language to modify large data sets and extensive experience in the applied use of Microsoft Excel, Power Point, Access, and Word is required.

Major Accountabilities

Conducts advanced analysis of energy markets, system operations, or other business or operational plans or items utilizing advanced qualitative and quantitative techniques.

As well as trains and supports team members in less complex analysis.

• Develops and presents information and / or presentations to leaders and executives highlighting or recommending resource plan alternatives based on market trends and conditions, wholesale market changes or other analytical findings critical to the business.
• Leads teams in evaluating resource plans, market changes or other complex analysis that requires input from Legal department, Regulatory, Resource Management, Fossil Generation, and / or Middle and Back Office, etc.
• May perform analysis to optimize the timing of generation outages, determine economic power transactions, and assist traders in developing strategies for serving APS load obligations in the most cost effective manner that also supports system reliability.
• Oversees other analysts' quantitative analysis using production cost models in the development of comprehensive resource plans, support trading and fuel procurement decisions, implement the hedge plan or produce the corporate Fuel Budget.
• Leads teams in evaluating historic and forecasted market data, including pricing and trends to develop forecasts and analytical and mathematical models and analysis to support business unit performance plans and efforts.
• Develops detailed and complex reports, such as the Integrated Resource Plan or topic specific white papers, to support business unit initiatives and decision making involving capital expenditures, major commercial commitments and changes in operating strategy.
• Performs economic and financial studies, including cash flow analysis, rates of return computations and revenue requirements analysis as required.
• Provides technical and advanced quantitative methods in support of system operations, trading, middle office, and risk management functions.
• Provides leadership to produce effective project teams. Ensure the development of a cooperative culture that supports team accomplishments and eliminates barriers and roadblocks.
• Influence the strategic direction of the Company's planning efforts and provide project management among numerous APS departments regarding the planning and implementation of such resources.
• Maintains and focuses others on awareness and understanding of key internal business functions, personnel, business improvement opportunities, key industry issues, key stakeholders, regulators, and technology trends.

Participates in industry forums involving activities that affect the market to provide input for changes and to understand impacts to APS.

Export Compliance / EEO Statement

This position may require access to and / or use of information subject to control under the Department of Energy's Part 810 Regulations (10 CFR Part 810), the Export Administration Regulations (EAR) (15 CFR Parts 730 through 774), or the International Traffic in Arms Regulations (ITAR) (22 CFR Chapter I, Subchapter M Part 120) (collectively, 'U.

S. Export Control Laws'). Therefore, some positions may require applicants to be a U.S. person, which is defined as a U.S.

Citizen, a U.S. Lawful Permanent Resident (i.e. 'Green Card Holder'), a Political Asylee, or a Refugee under the U.S. Export Control Laws.

All applicants will be required to confirm their U.S. person or non-US person status. All information collected in this regard will only be used to ensure compliance with U.

S. Export Control Laws, and will be used in full compliance with all applicable laws prohibiting discrimination on the basis of national origin and other factors.

For positions at Palo Verde Nuclear Generating Stations (PVNGS) all openings will require applicants to be a U.S. person.

Pinnacle West Capital Corporation and its subsidiaries and affiliates ('Pinnacle West') maintain a continuing policy of nondiscrimination in employment.

It is our policy to provide equal opportunity in all phases of the employment process and in compliance with applicable federal, state, and local laws and regulations.

This policy of nondiscrimination shall include, but not be limited to, recruiting, hiring, promoting, compensating, reassigning, demoting, transferring, laying off, recalling, terminating employment, and training for all positions without regard to race, color, religion, disability, age, national origin, gender, gender identity, sexual orientation, marital status, protected veteran status, or any other classification or characteristic protected by law.

For more information on applicable equal employment regulations, please refer to EEO is the Law poster. Federal law requires all employers to verify the identity and employment eligibility of every person hired to work in the United States, refer to E-Verify poster.

View the employee rights and responsibilities under the Family and Medical Leave Act (FMLA).

Arizona Public Service is a smoke free workplace.

FlexRole :

This position is not required to be performed at a specific APS facility as long as adequate technology and a solid ergonomic setup are present.

Pending agreement with leadership, employees hired into this role will be able to choose where they prefer to perform their work, but the ultimate decision is the company's.

Employees will have two options to choose from :

• APS office based : The employee prefers to work most of the time from an APS facility.
• Home based : The employee prefers to work most of the time from his / her home.
• Employees in Flex roles are required to reside in Arizona (or NM for Four Corners-based employees). Role types are subject to change based on business need.

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