South Carolina’s state‑owned power provider Santee Cooper submitted its latest Integrated Resource Planning (IRP) proposal to the Public Service Commission this week, responding to what the utility describes as “unprecedented growth in electricity demand across the state.” The filing projects a 1,250‑megawatt increase in peak winter demand by 2030 and a further rise to 1,375 megawatts by 2040, compared with estimates released three years ago.
Key components of the plan
The IRP highlights two major supply additions. First, the Canadys Station – a natural‑gas combined‑cycle facility in Colleton County – is slated to begin operations in early 2033. Once online, Canadys will deliver roughly 2,200 megawatts of electricity, enough to power more than one million homes, and is expected to help keep rates stable for Santee Cooper’s retail customers and the network of electric cooperatives it serves.
Second, the utility says a new natural‑gas combined‑cycle (NGCC) resource will be needed around 2035 to accommodate continued load growth and to replace retiring coal units. Santee Cooper has identified a potential site in Hampton County and plans to start environmental assessments as soon as practicable.
Environmental considerations
The proposal has drawn criticism from some environmental activists who label the new gas projects as “expensive new gas plants.” Santee Cooper, however, points to its broader emissions strategy: the plan calls for a reduction in greenhouse‑gas emissions to 43% of 2005 levels by 2035 and to 40% by 2050. While the utility acknowledges that natural‑gas facilities are not a permanent solution, it argues that they are a reliable bridge while renewable resources are scaled up.
Coal retirements and future reliability
Santee Cooper’s IRP notes that the coal‑fired Winyah Generating Station in Georgetown is slated for retirement by 2034, but the exact shutdown date will depend on the availability of sufficient replacement resources. The utility also confirms that there are no current plans to close the larger Cross Generating Station in Pineville, which supplies 2,350 megawatts.
Context for South Carolina ratepayers
State‑owned utilities like Santee Cooper have long been a point of debate in South Carolina. Critics argue that public ownership creates inefficiencies and higher costs, while supporters contend that state control ensures reliable service and protects consumers from market volatility. The current plan aims to balance those concerns by adding capacity that is both dependable and comparatively cleaner than coal.
According to the U.S. Energy Information Administration, national carbon emissions fell 18.6% last year, largely because natural gas displaced coal in electricity generation. Santee Cooper’s emphasis on gas‑fired generation aligns with that broader trend, offering a pragmatic path toward lower emissions while the state continues to develop renewable projects.
What’s next?
The IRP will now undergo review by the Public Service Commission, which will evaluate the proposed projects, cost estimates, and environmental impacts before granting any approvals. Stakeholders, including local governments, consumer advocacy groups, and industry representatives, are expected to submit comments during the commission’s public hearing period.
For South Carolina’s 200,000 retail customers and the many cooperatives that rely on Santee Cooper’s grid, the outcome of this review will shape electricity rates and reliability for the next two decades.
Original reporting: FITSNews — read the source article.
