PSO Files Rate Review with the OCC to Support Grid Upgrades

Public Service Company of Oklahoma (PSO) has filed a rate review with the Oklahoma Corporation Commission to continue delivering safe, reliable, and resilient electric service for its 580,000 customers. This request reflects investments already in place and ensures PSO can meet Oklahoma's growing energy needs through grid upgrades, advanced technologies, and smart tools that reduce outages, speed restoration, and provide accurate billing and real-time alerts.

The filing supports initiatives that are already improving service to customers. PSO's vegetation management program has cut tree-related outages by 91%, while the Grid Enhancement and Resiliency (GEAR) program has saved more than 144 million customer minutes of service interruption since 2020 through automation and smart reclosers. Additional investments in pole replacements, undergrounding lines, and advanced metering improve safety and communication with customers on outage restoration efforts. On the generation side, the acquisition of the Green Country Power Plant adds 795 MW of natural gas capacity, and investments in other generation facilities strengthen PSO's reliability and support Oklahoma's growing communities.

As part of the review, PSO is proposing new special terms and conditions for new large customers to ensure they pay full costs to connect to the grid as Oklahoma attracts major investment and economic growth. These new terms prevent cost shifting and maintain grid reliability, while enabling PSO to serve new large loads responsibly and sustainably.

This filing is the beginning of a rigorous review process with regulators and other stakeholders. Throughout this process, PSO will work transparently to ensure every aspect of the request is thoroughly examined. If approved as filed, the average residential customer using 1,100 kWh per month would experience an increase of about $25, or 15%, by July 2026. PSO continues offering programs such as our average monthly payment plan, PowerPay, energy efficiency resources, and bill assistance to help manage costs and keep energy affordable.

PSO understands affordability matters for every family and business it serves. Through smarter grid investments, energy efficiency programs, and bill payment assistance, PSO remains committed to delivering long term value and supporting communities.