Seven States Power Corporation Expands Team Amidst Substantial Growth
December 7, 2021

Less than one year after Seven States Power Corporation launched as an independent business under the leadership of Betsey Kirk McCall, the trusted energy and technology solutions provider is expanding with the addition of two full-time team members.

Joining the team are Marleen Hamilton and Joe Knox, who bring unique experience to help Seven States deliver industry-leading expertise in electric vehicle charging infrastructure; solar power generation technology; middle-mile fiber connectivity; battery storage; and other game-changing technologies designed to empower the Tennessee Valley’s local power companies to deliver on the promise of safe, reliable, and innovative energy projects.

“As we have defined our brand and built out a portfolio of projects over the past year, we have been blown away by the need for our services,” said Betsey Kirk McCall, President and CEO of Seven States Power Corporation. “The substantial growth we are experiencing affirms the decision our board made less than a year ago to launch Seven States as an independent business. By bringing Marleen and Joe on board, Seven States will be better positioned to support the growing number of projects across the Valley as we continue to serve as the ‘easy button’ for our member-owners.”

Marleen Hamilton joins Seven States as Director of Finance and Accounting. With more than 26 years of corporate accounting experience with both for profit and not for profit organizations, Hamilton is uniquely positioned to lead finance efforts for Seven States. Most recently, she oversaw day-to-day operations for 19 separate entities, with experience in budgeting, cash management, compliance, accounts payable, accounts receivable, balance sheet reconciliations, and audits. Hamilton holds a bachelor of science in accounting from Lee University and resides in Cleveland.

“I could not be more excited to join the Seven States team during this time of explosive growth,” said Marleen Hamilton, Director of Finance and Accounting. “The energy and excitement around the innovative work being done here is palpable, and I look forward to helping the team fulfill its mission as we continue to best serve our member-owners across the Tennessee Valley.”

Licensed professional engineer Joe Knox joins Seven States as Director of Technology Deployment from Knox Consulting Services, a consulting business he started in 2015 to provide technical services to a wide range of clients. His extensive engineering and project management experience will be invaluable as Seven States continues to partner with local power companies to meet the growing demand for technology in the Valley. Knox is a native of Middle Tennessee and graduated from Tennessee Technological University with a bachelor of science degree in civil engineering. He currently resides in Hendersonville with his wife and two children.

“With my extensive background in electrical systems and vehicle fueling technologies, combined with my engineering experience, I am excited to serve local power companies in the Tennessee Valley and assist the team as we execute on the vision for Seven States,” said Joe Knox, Director of Technology Deployment.

 

By Jessica Bradshaw July 1, 2026
The second quarter of 2026 has been a productive period for the Seven States team, with much of the spring and early summer dedicated to engaging utility leaders, elected officials, community stakeholders, and the public to share the vision, progress, and benefits of the Energy Express Project. Members of the Seven States team had the privilege of speaking with leaders from BrightRidge, Memphis Light, Gas and Water (MLGW), and the Nashville Electric Service (NES). These publicly held meetings served as important forums to answer questions, share project milestones, and demonstrate how the Energy Express Project will modernize and strengthen the Valley’s electric infrastructure for decades to come. Led by Seven States, the project will deliver 220MW of battery storage capacity across multiple site locations in partnership with BrightRidge (20MW), MLGW (100MW), and NES (100MW). The project is backed by Seven States’ award of a landmark $439 million zero-interest loan and grant from the U.S. Department of Agriculture’s Rural Utilities Service (USDA RUS). A primary objective of the project will be creating a stronger, more flexible electric grid capable of meeting increasing energy demands related to the state's industrial, commercial, and residential sectors. The battery assets will charge during off peak hours and discharge during peak hours to help peak shave, reducing costs and grid strain while providing utilities with greater operational flexibility. Originally envisioned as a utility scale solar project, the initiative will now deploy battery storage as a standalone resource on the distribution system and the assets will be owned and operated by Seven States. The project's outreach efforts have been featured by local media outlets (highlighted below), and a dedicated website has been launched to provide project updates while offering the public an opportunity to submit comments and questions. As we continue advancing the project, we remain grateful for the opportunity to engage with partners across Tennessee and share our progress with the Seven States audience. We look forward to continuing these conversations with utilities, local governments, community organizations, and rate payers as the Energy Express Project moves forward. Together, we are building and energizing the grid of the future. POWERING UP: Chattanooga-based Seven States to build grid batteries with $439M in federal funds BrightRidge, Seven State Power Corporation partnership to bring battery storage to the Tennessee Valley MLGW and Seven States Power form partnership for battery storage MLGW, Seven States make deal to deploy battery storage Energy Express Project to Bring Battery Storage to Greater Nashville Nashville's power grid is about to get a boost. Here's how.
By Jessica Bradshaw June 25, 2026
June 25, 2026 Seven States Power Corporation, headquartered in Chattanooga, Tenn., is pleased to announce that it will deliver a significant infrastructure investment to modernize the electric grid in partnership with Nashville Electric Service (NES), a municipal public utility based in Nashville, TN. The initiative, named the Energy Express Project, will deploy battery storage as a standalone resource designed to support peak demand, improve grid resiliency, and provide NES with greater operational flexibility. The project is backed by Seven States’ award of a landmark $439 million zero-interest loan and grant from the U.S. Department of Agriculture’s Rural Utilities Service (USDA RUS). This announcement follows similar recent announcements related to additional project locations across the state in partnership with Memphis Light, Gas and Water in Memphis, TN and BrightRidge in Johnson City, TN. The approach reflects a strategic decision to prioritize dispatchable energy assets that can respond immediately to system needs. By focusing solely on battery storage, Seven States and its partners aim to enhance reliability, allowing the utilities to better manage demand fluctuations and unexpected outages while maintaining some of the lowest electric rates in the country. “The Energy Express Project demonstrates how federal financing, local ownership, and collaborative partnerships can accelerate deployment of advanced grid technologies to help manage growing demand to meet the region’s energy needs,” said Betsey Kirk McCall, President and CEO of Seven States Power Corporation. “Battery storage provides an innovative tool that aligns with national priorities around energy dominance, affordability, and reliability.” Led by Seven States, the project will consist of 100 megawatts of battery storage capacity interconnected with NES’s electric distribution system. The batteries will be capable of storing energy from the existing grid and deploying it during periods of peak demand or system stress, helping stabilize the grid while reducing exposure to high-cost power purchases. “Our partnership with the team of experts at Seven States will allow us to deliver a battery solution that will modernize our grid, improve operations, and provide reliability for our customers,” said Teresa Broyles-Aplin, president and CEO of NES. “It gives us greater control during peak demand periods and supports our ongoing effort toward reliable energy distribution.” The battery installations will be constructed at several NES substations throughout Greater Nashville. Construction is expected to begin in 2027, with the project targeted for completion by December 2028. Once operational, the initiative is expected to support the electric needs of approximately 12,000 homes and businesses across the Greater Nashville area and create jobs during construction.  Seven States will utilize the award from USDA to build 220MW of battery storage with its electric utility partners in west, middle and east Tennessee. The initiative is among the first of its kind in the Tennessee Valley and represents a significant investment in grid reliability and local energy infrastructure. Seven States and NES view the project as a model for future battery-focused investments across the Southeast.
By Jessica Bradshaw June 18, 2026
June 18, 2026 Seven States Power Corporation, headquartered in Chattanooga, Tenn., announced in September a partnership with MLGW that would deliver a significant infrastructure investment to modernize the electric grid in partnership with Memphis Light, Gas and Water (MLGW) a municipal public utility based in Memphis, TN. Since that time, the project has expanded beyond its original scope. Originally envisioned as a combined solar-and-storage project, the initiative will now deploy battery storage as a standalone resource designed to support peak demand, improve grid resiliency, and provide MLGW with greater operational flexibility. The project remains backed by Seven States’ award of a landmark $439 million zero-interest loan and grant from the U.S. Department of Agriculture’s Rural Utilities Service (USDA RUS). The revised approach reflects a strategic decision to prioritize dispatchable energy assets that can respond immediately to system needs. By focusing solely on battery storage, Seven States and MLGW aim to enhance reliability, allowing the utility to better manage demand fluctuations and unexpected outages while maintaining some of the lowest electric rates in the country. “We are thrilled to build new electric infrastructure to support growing demand and meet the region’s energy needs,” said Betsey Kirk McCall, President and CEO of Seven States Power Corporation. “Battery storage provides a powerful, flexible, and innovative tool that aligns with national priorities around energy dominance, affordability, and reliability.” Led by Seven States Power Corporation, the project will consist of 100 megawatts of battery storage capacity interconnected with MLGW’s electric distribution system. The batteries will be capable of storing energy from the existing grid and deploying it during periods of peak demand or system stress, helping stabilize the grid while reducing exposure to high-cost power purchases. “This scalable battery solution allows us to modernize our grid and improve reliability for our customers,” said Doug McGowen, president and CEO of MLGW. “It gives us greater control during peak demand periods to support power supply to our customers across Memphis and Shelby County.” The battery installations will be constructed at several MLGW substations throughout Memphis and Shelby County. Construction is expected to begin in 2027, with the project targeted for completion by December 2028. Once operational, the initiative is expected to support the electric needs of approximately 12,000 homes and businesses across Shelby County and create jobs during construction. Seven States will utilize the award from USDA to build 220MW of battery storage with its electric utility partners in west, middle and east Tennessee. The initiative is among the first of its kind in the Tennessee Valley, demonstrating how federal financing, local ownership, and collaborative partnerships can accelerate deployment of advanced grid technologies. Seven States and MLGW view the project as a model for future battery-focused investments across the Southeast. Additional Related Articles MLGW, Seven States make deal to deploy battery storage; xAI solar sublease scrapped Memphis leads TN in lead service line removal efforts MLGW proposes battery storage projects to strengthen electric grid
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