Georgia Power has begun construction on a new 200-megawatt (MW) battery energy storage system (BESS) in Twiggs County, located southeast of Macon, Georgia. This project, approved by the Georgia Public Service Commission (PSC) on September 4, 2025, emerged from the competitive selection process of the 2023 Integrated Resource Plan (IRP) Update. The Twiggs BESS, owned by Georgia Power, is being built next to the existing Twiggs County Solar facility.
Designed to deliver stored power over a four-hour period, the 200 MW storage system will enhance grid reliability and strengthen the overall resilience of the state’s energy infrastructure. BESS projects play a crucial role in maximizing the effectiveness of renewable energy sources such as solar by storing surplus power during low-demand periods for use when demand spikes — for instance, on cold winter mornings when solar generation is limited. These systems directly support the energy needs identified in the 2023 IRP Update while providing a cost-effective solution for future grid demands.
Rick Anderson, senior vice president and senior production officer at Georgia Power, emphasized the importance of collaboration in advancing grid reliability: “Working with the Georgia PSC and other partners allows us to make the right investments for a strong and dependable power grid. The 200 MW Twiggs County BESS will help us serve our customers more efficiently and meet Georgia’s growing energy needs. As we increase renewable generation, energy storage will be essential to maintaining flexibility and reliability when those sources aren’t producing.”
Construction of the Twiggs facility, led by Crowder Industrial Construction, LLC, is scheduled for completion in 2027.
Beyond Twiggs County, Georgia Power is developing four additional BESS projects across Bibb, Cherokee, Floyd, and Lowndes counties, totaling 765 MW of capacity and expected to come online in 2026. These initiatives were also part of the 2023 IRP Update.
Future Energy Storage Developments
As part of an All-Source Request for Proposals (RFP), Georgia Power has requested approval from the PSC to add 10 new battery energy storage facilities totaling 3,022.5 MW, along with two advanced solar-plus-storage projects adding another 350 MW. Site selections were based on existing infrastructure opportunities, such as proximity to substations and available company-owned land.
Additionally, the company has issued a call for proposals for another 500 MW of energy storage systems (ESS) with at least a two-hour discharge capability. The RFP—managed by Ascend Analytics as an independent evaluator—will seek:
Standalone ESS with grid-charging functionality, and ESS paired with renewable resources (either new or existing) that also support grid charging. Designed to deliver stored power over a four-hour period, the 200 MW storage system will enhance grid reliability and strengthen the overall resilience of the state’s energy infrastructure. BESS projects play a crucial role in maximizing the effectiveness of renewable energy sources such as solar by storing surplus power during low-demand periods for use when demand spikes — for instance, on cold winter mornings when solar generation is limited. These systems directly support the energy needs identified in the 2023 IRP Update while providing a cost-effective solution for future grid demands.
Rick Anderson, senior vice president and senior production officer at Georgia Power, emphasized the importance of collaboration in advancing grid reliability: “Working with the Georgia PSC and other partners allows us to make the right investments for a strong and dependable power grid. The 200 MW Twiggs County BESS will help us serve our customers more efficiently and meet Georgia’s growing energy needs. As we increase renewable generation, energy storage will be essential to maintaining flexibility and reliability when those sources aren’t producing.”
Construction of the Twiggs facility, led by Crowder Industrial Construction, LLC, is scheduled for completion in 2027.
Beyond Twiggs County, Georgia Power is developing four additional BESS projects across Bibb, Cherokee, Floyd, and Lowndes counties, totaling 765 MW of capacity and expected to come online in 2026. These initiatives were also part of the 2023 IRP Update.
Future Energy Storage Developments
As part of an All-Source Request for Proposals (RFP), Georgia Power has requested approval from the PSC to add 10 new battery energy storage facilities totaling 3,022.5 MW, along with two advanced solar-plus-storage projects adding another 350 MW. Site selections were based on existing infrastructure opportunities, such as proximity to substations and available company-owned land.
Additionally, the company has issued a call for proposals for another 500 MW of energy storage systems (ESS) with at least a two-hour discharge capability. The RFP—managed by Ascend Analytics as an independent evaluator—will seek:
Georgia Power aims to have these new storage systems operational by 2031, with qualified project bids due in early 2026.
Click here to know more about how Georgia Power is meeting the needs of customers through a diverse, balanced energy portfolio, and the IRP process.
Click here to know more about how Georgia Power is meeting the needs of customers through a diverse, balanced energy portfolio, and the IRP process.