New Research Includes Integration of Batteries
May 13, 2020

Battery storage. It isn’t typically something to get powered up about, but as the Seven States Power team recently discovered, there are some exceptions.

Our team recently received three 13.5 kwh batteries from EPB in Chattanooga for use in our Smart Grid Lab and installed one on each phase of electrical service at our headquarters.

“Most energy storage providers are focused on large grid-scale batteries or small residential batteries. We’re interested in understanding energy storage for our many small and medium businesses,” explained Lance Irwin, EPB’s Director of Energy Solutions Technology. “Seven States Power’s Smart Grid Lab is a great opportunity for our vendors and other LPC’s to learn from a real-world application.”

The units are flat, wall-mounted lithium-ion batteries that store electricity for solar self-consumption, time of use load shifting, backup power, and off-the-grid use. The modular system offers the flexibility to add multiple batteries for homes or businesses with high energy demands. Part of the testing with the manufacturer is a new load forecasting function that will automatically dispatch the batteries for optimal cost savings based on the building load and the electricity rates.

“In our laboratory, we will test how the batteries work, how well they perform, and how these batteries compare to other products on the market,” said Steve Noe, director of strategic energy solutions. “Battery storage will be an integral part of microgrids in the future, so we’re particularly interested in how it combines with technologies that could be used as a microgrid and how well it integrates into the DER Management System (DERMS).”

Our load management simulation laboratory is designed to integrate technologies that could benefit our members, show how DERMS software works in real time, and to explore the capability it offers those seeking to manage costs by filling valleys and shaving peaks.

The next phase of our Smart Grid Lab development includes the addition of load forecasting capabilities and controllable lighting.

Schedule a Tour

Laboratory tours will be available when COVID-19 restrictions are lifted and it is deemed appropriate to reopen our offices. Please contact any of our team members to schedule a tour of the lab, or email us at info@7spc.com.

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.
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