Georgia Power Data Center Interconnection Timeline: IRP Model, CIR Program, and What 9,885 MW Actually Means for Your Project

Georgia Power operates under a regulated Integrated Resource Plan (IRP) model approved by the Georgia Public Service Commission. There is no open interconnection queue for load customers — unlike ERCOT (where you enter a queue and get a batch assignment) or PJM (where you enter a serial/cluster study queue). In Georgia, power availability for large loads is determined by the IRP cycle, PSC certification votes, and bilateral negotiations with Georgia Power. Your timeline is tied to when new generation comes online, not a queue position.

The PSC unanimously approved Georgia Power's request to add 9,885 MW of new generation at a cost of $16.3 billion — a 50% capacity increase. Two-thirds is natural gas (combustion turbines and combined-cycle plants), with the remainder being battery energy storage systems (BESS) paired with renewables. However, this is an approval to build, not delivered capacity. Gas turbines take 3-4 years to construct; combined-cycle plants take 4-5 years. Most new capacity will not deliver power until 2028-2031. The approval also requires that all 9,885 MW be contracted by end of 2026, or the PSC has 5 years to implement remediation actions.

The CIR program, approved by the Georgia PSC on April 7, 2026, allows hyperscale and large C&I customers to identify and procure their own clean energy projects — solar, battery storage, or hybrid — through a developer. Georgia Power evaluates cost-effectiveness, and if approved, the customer pays a monthly tariff covering construction, operating costs, and developer profit. In exchange, the customer receives renewable energy certificates (RECs) and energy bill credits. If the procured power is cheaper than utility-generated alternatives, 75% of savings flow to the participating customer. The program cap is 3 GW through 2035.

Georgia Power does not publish a standardized timeline for large-load interconnection studies because the process is bilateral, not queue-based. Based on reported project timelines: load studies and engineering review take 6-12 months; distribution or substation upgrades take 12-24 months to construct; new generation-dependent projects face 3-5 year timelines aligned to IRP construction schedules. Sites near substations with existing headroom can energize in 18-30 months. Sites requiring new generation wait until the relevant IRP tranche delivers — typically 2028-2031 under the current approval.

SIGHT (Southern Interactive Generation Hosting Tool) is Southern Company's public portal for viewing generation interconnection queue requests across its operating companies, including Georgia Power. It shows active projects, fuel types, and requested capacity. As of early 2026, Georgia's generation queue shows 169 projects totaling 37.91 GW — broken down as gas (17.9 GW), solar (8.6 GW), BESS (8.4 GW), and hybrid (6.1 GW). Note: SIGHT tracks generation projects, not load interconnection requests. Large-load capacity assessment is handled bilaterally with Georgia Power.

The Georgia PSC approved a base rate freeze through the end of 2028 on July 31, 2025. This freeze applies to all customer classes including commercial and industrial. The commercial rate averaged approximately 9.94 cents/kWh as of May 2025. However, the freeze does not cover pass-through fuel cost adjustments or storm recovery costs. Georgia Power projects the new generation buildout will reduce rates by ~$8.50/month for residential customers between 2029-2031 as large data center loads spread fixed costs across more consumption. The freeze provides rate certainty for projects energizing before 2029.

In Q4 2025, Southern Company reported that 14.3 GW of data center projects were withdrawn from its power connection pipeline, producing a net 6 GW decline — an unprecedented reversal. This reflects speculative demand falling away: many technology companies submitted power requests without secured financing, executed site control, or confirmed tenants, often negotiating with multiple utilities simultaneously. The contraction signals that Georgia's pipeline is normalizing toward funded, committed projects. For serious developers, reduced speculative competition may actually improve interconnection timeline positioning.

Yes, but with significant limitations. Electric Membership Corporations (EMCs) like Greystone Power Cooperative (Douglas County) and municipal utilities serve portions of Georgia outside Georgia Power's exclusive territory. Microsoft's Douglas County campus uses Greystone Power. EMCs purchase wholesale power from Oglethorpe Power Corporation and may offer faster service agreement execution for smaller loads. However, EMCs lack the generation portfolio for hyperscale demand (100+ MW). For loads above 50 MW, Georgia Power's service territory and generation buildout are typically the only viable path.