EPB Chattanooga: 58 MWh, 5 Microgrids for Emergency & Local Gov

Key Facts
  • EPB of Chattanooga is expanding its microgrid fleet with the installation of new equipment across five microgrids, totaling 58 MWh of energy storage.
  • This significant development, a partnership with the Department of Energy’s Oak Ridge National Laboratory (ORNL), aims to enhance grid resilience and reduce customer power outages.
  • The project reached a milestone with an event celebrating the installation of the microgrid equipment within EPB’s network, supported by the DOE’s Office of Electricity.

EPB of Chattanooga is expanding its microgrid fleet with the installation of new equipment across five microgrids, totaling 58 MWh of energy storage. This significant development, a partnership with the Department of Energy’s Oak Ridge National Laboratory (ORNL), aims to enhance grid resilience and reduce customer power outages.

The project reached a milestone with an event celebrating the installation of the microgrid equipment within EPB’s network, supported by the DOE’s Office of Electricity. This initiative is part of a broader effort to strengthen America’s energy system.

Microgrid Technology for Enhanced Reliability

Microgrids are localized energy systems designed to connect to the main grid but also operate independently. This capability allows them to provide power during outages affecting the larger network. The microgrid platform developed at ORNL is undergoing testing at the Grid Research Innovation and Development Center (GRID-C) before its deployment in EPB’s new microgrids.

Why It Matters

Katie Jereza, assistant secretary for the DOE’s Office of Electricity, highlighted the importance of microgrids in making electricity more dependable, especially during critical times. She also noted their role in reducing energy costs when demand increases. The collaboration between utilities like EPB and national laboratories like ORNL is seen as a crucial pathway for bringing new technologies to the grid quickly, ensuring energy remains affordable, reliable, and secure.

The DOE’s Grid Deployment Office is actively involved in strengthening the nation’s energy infrastructure. This partnership exemplifies how government support and utility-led initiatives can accelerate the deployment of advanced energy systems. The testing at ORNL’s GRID-C facility ensures that the technology is robust before it is integrated into EPB’s operational network.

Critical Perspective

While the expansion of microgrids by EPB and its partnership with ORNL represent a significant step towards improved grid resilience, the success of such projects hinges on continued investment and policy support. The ability of microgrids to isolate from the main grid during disturbances is a key benefit, but their integration and management require sophisticated control systems and ongoing maintenance. The DOE’s involvement, as evidenced by Assistant Secretary Jereza’s visit, underscores the federal government’s commitment to modernizing the grid and ensuring energy security across the United States.

Related Coverage

On the Ground
Value58 MWh
LocationChattanooga, Tennessee
StagePlanned

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