December 2025 Update

As the end of 2025 nears, construction to add a third dual-fuel power generator at Turtle Creek Station (TCS) continues at a rapid pace. Here’s what’s happening:

Combustion turbine arrives – Siemens Energy delivered a new 35-foot-long, 560,000-pound turbine to Turtle Creek Station last month. Workers are now creating a temporary cover for the turbine at TCS as crews prepare to install it during the next two years. The new turbine is part of OPPD’s effort to add 2.5 gigawatts of electricity in the next decade to meet the growing demand for power across OPPD’s 13-county territory.

Generation Step-up Unit delivery – As the new year begins, Hyundai Power Transformers will deliver a 517,000-pound Generation Step-up Unit (GSU) to Turtle Creek Station. This large transformer will boost Turtle Creek’s electricity to a high enough voltage, so it can travel through transmission lines with minimal loss. This huge delivery, approximately 20 feet wide and 20 feet tall when loaded on a special heavy-duty transport truck that’s 341 feet long, will arrive during the overnight hours to minimize any disruption to the public nearby.

Freight shipments – Dozens of items – including specialized parts, components and equipment, continue to arrive at Turtle Creek Station nearly every week. So much gear is part of the expansion at TCS that crews have constructed a temporary warehouse to shield generation equipment from harsh weather until all the pieces are put together.

We’re excited about the progress at TCS, which will make OPPD’s power network ready to meet tomorrow’s needs and provide reliable, resilient power for customers.