The Georgia Power IRP, Rate Case, and Renewable Energy

Since 2013, the IRP has included approval of large-scale solar purchasing by Georgia Power. Beginning in 2019, it added the approval of large-solar purchase or subscription programs whereby large customers can buy solar through the utility. These programs are among the single largest drivers of new utility-scale solar development in the state. 

While rooftop solar was also discussed in the 2022 IRP, the core issue was ultimately deferred to the rate case. Following the conclusion of the IRP process, proceedings for the 2022 Rate Case began. 

The rate case seeks to address four key questions: 

• How much revenue does Georgia Power need to cover the cost of serving customers?
• What is a reasonable rate of return for the utility to earn on its investment in equipment? 

Answering these first two questions helps Georgia Power determine the cost of service. The rate case then determines:

• How will those costs be allocated to customers?
• What are good rate designs for the various classes of customers?