NextEra Energy Resources Executive and Leadership Team

September, 2026

Leadership Overview

NextEra Energy Resources has 6 executives leading key functions including strategy, operations, administration, corporate leadership, regional management, and commodities trading.

Focused on sustainable power generation, NextEra Energy Resources delivers reliable wholesale electricity solutions while maintaining a diverse fuel mix for utilities and industrial partners across North American markets.

Leadership Roles at NextEra Energy Resources

  • Chief Executive Officer - Sumon Tanvir
  • Chief Operating Officer - Kelly Cison
  • President - Michael Toal
  • President - Richard Argentieri
  • President, Commodities, Trading & Commercial Services - Lawrence Silverstein
  • Chief of Staff - Shanelle Wilson
  • Sumon Tanvir - Chief Executive Officer

    Sumon Tanvir, the Chief Executive Officer at NextEra Energy Resources, directs the overarching strategic vision for wholesale power generation. By overseeing the entire portfolio of power plants, the Chief Executive Officer ensures alignment with long-term sustainability goals and market demands. This leadership role involves constant engagement with the Board to optimize capital allocation across diverse fuel assets. Sumon Tanvir drives the expansion of renewable energy initiatives, securing a competitive position within the North American energy landscape. Through rigorous oversight of operational efficiency, the Chief Executive Officer maintains high standards of reliability for retail electricity providers and municipal partners. By fostering innovation in grid technology, Tanvir strengthens the company's market impact. Ultimately, the Chief Executive Officer guarantees that all corporate activities support the mission of providing clean, affordable energy to industrial clients and cooperatives throughout the region.

    Kelly Cison - Chief Operating Officer

    Kelly Cison, the Chief Operating Officer at NextEra Energy Resources, manages the daily technical performance of power generation facilities. Overseeing the maintenance and reliability of diverse fuel assets, the Chief Operating Officer ensures seamless integration into the wholesale power grid. This role requires constant coordination with engineering teams to maximize output and minimize downtime across North American operations. Kelly Cison drives operational excellence by implementing advanced monitoring systems that track plant efficiency in real-time. By optimizing supply chain logistics for fuel procurement, the Chief Operating Officer supports the company's commitment to cost-effective energy delivery. Cison collaborates with the executive team to scale infrastructure projects that meet the evolving needs of utilities and large industrial companies. Through disciplined management of physical assets, Cison secures the operational stability necessary for sustained growth in the competitive wholesale energy sector.

    Michael Toal - President

    Michael Toal, the President at NextEra Energy Resources, leads the development and execution of large-scale renewable energy projects. Overseeing the expansion of wind and solar assets, the President ensures that new capacity meets the rigorous demands of utility partners and retail electricity providers. This role involves navigating complex regulatory environments to secure project viability across North American markets. Michael Toal drives the integration of sustainable technologies into the existing wholesale power mix, enhancing the company's environmental impact. By managing relationships with key stakeholders and municipal electric providers, the President secures long-term service agreements. Toal collaborates with the Chief Executive Officer to align project development with corporate growth targets. Through strategic oversight of capital-intensive initiatives, Toal strengthens the company's leadership in the renewable energy sector. This executive role remains central to maintaining a diverse and resilient power generation portfolio.

    Richard Argentieri - President

    Richard Argentieri, the President at NextEra Energy Resources, manages the operational performance of traditional power generation assets. Overseeing the fuel mix strategy, the President ensures that thermal and conventional plants operate at peak efficiency to support grid stability. This role involves optimizing dispatch schedules to meet the fluctuating needs of power cooperatives and industrial clients throughout North America. Richard Argentieri drives initiatives to modernize legacy infrastructure, improving reliability and reducing emissions. By coordinating with the operations team, the President maintains a consistent supply of wholesale electricity during periods of high demand. Argentieri monitors market trends to adjust generation strategies, ensuring that the company remains a preferred partner for utilities. Through rigorous oversight of plant performance, Argentieri secures the financial health of the generation portfolio. This leadership role focuses on balancing operational output with the company's commitment to sustainable energy practices.
    Richard Argentieri

    Lawrence Silverstein - President, Commodities, Trading & Commercial Services

    Lawrence Silverstein, the President, Commodities, Trading & Commercial Services at NextEra Energy Resources, directs the financial hedging and energy marketing strategies. Overseeing the trading desk, the President manages price risk for the company's diverse power generation portfolio. This role involves analyzing market volatility to optimize revenue streams from wholesale electricity sales across North American regions. Lawrence Silverstein drives the development of commercial services that provide value-added solutions to retail electricity providers and large industrial companies. By leveraging sophisticated data analytics, the President identifies opportunities to maximize margins in competitive energy markets. Silverstein collaborates with the executive team to ensure that trading activities align with the company's overall risk appetite and growth objectives. Through expert management of commodity portfolios, Silverstein secures financial stability for the organization. This position remains essential for navigating the complex financial landscape of the wholesale power industry.
    Lawrence Silverstein

    Shanelle Wilson - Chief of Staff

    Shanelle Wilson, the Chief of Staff at NextEra Energy Resources, coordinates cross-functional initiatives to streamline executive decision-making processes. Overseeing internal communications and strategic planning, the Chief of Staff ensures that departmental goals align with the broader mission of wholesale power generation. This role involves managing high-priority projects that impact the company's market position across North American territories. Shanelle Wilson drives organizational efficiency by facilitating collaboration between the C-suite and operational leaders. By synthesizing complex data into actionable insights, the Chief of Staff supports the development of long-term business strategies. Wilson monitors the progress of key corporate objectives, ensuring that resources remain focused on high-impact energy solutions. Through meticulous management of executive workflows, Wilson enhances the overall effectiveness of the leadership team. This position remains vital for maintaining organizational agility while navigating the complexities of the modern energy industry.

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    Frequently Asked Questions Regarding NextEra Energy Resources Top Executives and Leadership Team

    Who leads NextEra Energy Resources?
    NextEra Energy Resources is led by Sumon Tanvir (Chief Executive Officer), along with executives such as Kelly Cison (Chief Operating Officer) and Michael Toal (President).
    Who is part of NextEra Energy Resources’s executive team?
    The executive team of NextEra Energy Resources includes leaders such as Sumon Tanvir (Chief Executive Officer), Kelly Cison (Chief Operating Officer), Michael Toal (President) and other senior executives.
    How many executives does NextEra Energy Resources have?
    NextEra Energy Resources has 6 executives leading key business areas.
    What roles are included in NextEra Energy Resources’s leadership team?
    The leadership team of NextEra Energy Resources includes roles such as Chief Executive Officer, Chief Operating Officer, President, President, President, Commodities, Trading & Commercial Services.