Duke Energy Yadkin Substation NC

// Risk Intelligence

// Strategic Context

The Duke Energy Yadkin Substation in Carthage, North Carolina occupies a critical nexus within the electrical grid serving the Carolina Piedmont region, positioned strategically to manage power distribution across Moore County's diverse economic landscape. This facility exists at this specific location due to the convergence of multiple transmission lines serving the rapidly growing Sandhills region, where military installations, manufacturing centers, and expanding residential developments create complex and demanding electrical load requirements. The substation's placement in Carthage reflects decades of grid planning designed to balance power flows between Duke Energy's generating assets and the distributed demand across central North Carolina. The facility serves as a crucial switching point where high-voltage transmission lines step down to distribution voltages, making it an irreplaceable component in maintaining grid stability across a region that includes Fort Liberty, one of the Army's largest installations, along with significant manufacturing and agricultural operations. Should this facility go offline permanently, the United States would lose a critical power distribution node serving both civilian infrastructure and military readiness capabilities that directly support national defense operations.

// What This Facility Does

The Duke Energy Yadkin Substation functions as a high-voltage electrical switching and transformation facility that receives power from multiple transmission sources and distributes it through step-down transformers to serve Moore County's electrical grid. The facility processes electrical power flowing through transmission lines operating at voltages typically ranging from 69 kilovolts to 230 kilovolts, transforming this high-voltage electricity to lower distribution voltages of 12.47 kV and 4.16 kV that can safely serve residential, commercial, and industrial customers throughout the region. The substation contains specialized transformer equipment, protective relaying systems, and switching gear that automatically manages power flows and isolates faults to prevent cascading failures across the broader grid network. During normal operations, the facility serves as a critical control point where Duke Energy operators can remotely adjust power flows to accommodate changing demand patterns, maintenance requirements, and emergency conditions. The substation's sophisticated control systems communicate continuously with Duke Energy's grid operations center, providing real-time data on electrical loads, equipment status, and system performance metrics that enable operators to maintain grid stability across the Carolinas.

// Why This Location Is Strategically Important

Carthage's geographic position within Moore County places the Yadkin Substation at a critical intersection of North Carolina's electrical transmission network, serving as a vital link between major generating facilities and population centers across the Sandhills region. The facility's proximity to Fort Liberty, formerly Fort Bragg, makes it a crucial component in maintaining electrical service to one of America's most important military installations, where the 82nd Airborne Division and other critical units depend on reliable power for training, logistics, and operational readiness. The substation's location also positions it to serve the growing residential and commercial developments across Moore County, including the Pinehurst resort area and expanding manufacturing facilities that have located in the region to take advantage of North Carolina's business climate and transportation infrastructure. The facility connects to transmission lines that extend northward toward the Triangle region and southward toward Charlotte, making it an integral part of Duke Energy's transmission backbone serving over 7 million customers across the Carolinas. This strategic positioning means that disruptions at the Yadkin Substation can potentially impact power flows across a much broader geographic area than just Moore County, creating cascading effects throughout the regional grid network.

// Real-World Risk Scenarios

The December 2022 attack on Moore County substations provides a stark template for understanding the specific vulnerabilities facing the Duke Energy Yadkin Substation, where coordinated gunfire targeting critical transformer equipment demonstrated how relatively simple tactics can create catastrophic regional impacts. A similar attack scenario at this facility could involve small teams of attackers using high-powered rifles to target transformer cooling systems, control equipment, and switching gear from outside the facility perimeter, potentially causing transformer failures that would require weeks or months to repair given the specialized nature of high-voltage equipment. Severe weather events pose another significant risk vector, particularly ice storms and hurricanes that have historically caused extensive power outages across North Carolina, where falling trees and high winds can damage transmission lines feeding the substation or cause equipment failures within the facility itself. Cyber attacks targeting the facility's supervisory control and data acquisition systems represent an increasingly sophisticated threat, where foreign adversaries or domestic actors could potentially gain remote access to control systems and manipulate switching operations to cause equipment damage or widespread power outages. A coordinated attack combining physical assault on the facility with simultaneous cyber disruption of backup systems and communications networks would create the most challenging scenario for rapid restoration, particularly if attackers targeted multiple substations simultaneously as occurred in the December 2022 incident.

// Impact Radius

A successful attack or major failure at the Duke Energy Yadkin Substation would immediately affect thousands of Moore County residents and businesses, with cascading impacts that could extend well beyond the immediate service territory depending on the facility's role in regional transmission operations. The loss of this facility would directly impact Fort Liberty's operations, potentially affecting military training schedules, logistics operations, and the readiness of units that deploy globally to support national security missions. Local healthcare facilities, including FirstHealth Moore Regional Hospital, would be forced to rely on backup generators for extended periods, creating risks for patients requiring critical care and potentially overwhelming emergency response capabilities. The county's significant tourism economy, centered around Pinehurst and the Sandhills golf resort area, would suffer immediate economic losses as hotels, restaurants, and recreational facilities lose power during what could be an extended outage period. Recovery timelines would depend heavily on the nature of the damage, with simple switching problems potentially resolved within hours, but transformer damage requiring specialized equipment replacement that could extend outages for days or weeks. The agricultural sector across Moore County would face immediate challenges with livestock operations, irrigation systems, and food processing facilities losing power, creating potential animal welfare issues and economic losses for farming operations that form a crucial part of the local economy.

// Historical Context

The December 3, 2022 attack on Moore County substations represents the most significant physical assault on electrical infrastructure in recent U.S. history, providing a sobering example of how vulnerable these facilities remain despite years of security warnings from federal agencies. That coordinated attack on two Duke Energy substations simultaneously knocked out power to 45,000 customers for days during freezing temperatures, forcing Moore County officials to declare a state of emergency and implement a countywide curfew to maintain public safety. The attack bears similarities to other incidents across the United States, including the 2013 Metcalf sniper attack in California where attackers used rifles to damage Pacific Gas & Electric transformers, causing minimal immediate impact but demonstrating sophisticated knowledge of grid vulnerabilities. International precedents include attacks on electrical infrastructure in Ukraine, Iraq, and other conflict zones where adversaries have systematically targeted power systems to degrade civilian morale and government capabilities. The FBI's investigation of the Moore County attack as domestic terrorism reflects growing concerns about infrastructure targeting by both foreign adversaries and domestic extremists, with federal agencies warning that electrical substations represent attractive targets for actors seeking to cause maximum disruption with relatively simple tactics.

// Risk Assessment

The Duke Energy Yadkin Substation operates at an elevated risk level compared to typical electrical distribution facilities due to its location within Moore County, which has already demonstrated its attractiveness as a target for infrastructure attacks and its strategic importance to military operations at Fort Liberty. The facility's risk profile is heightened by the proven vulnerability of electrical substations to small-arms attacks, the difficulty of providing comprehensive physical security for sprawling electrical facilities, and the potential for cascading impacts across the regional grid network. Unlike urban substations that may benefit from closer proximity to law enforcement and emergency response capabilities, the Yadkin Substation's location in a more rural area of Moore County could result in longer response times during security incidents or equipment failures. The facility's age and design characteristics may also contribute to vulnerability, as many electrical substations were constructed decades ago when physical security was not considered a primary design criterion, leaving critical equipment exposed to attack from outside facility perimeters. The substation's integration with modern supervisory control and data acquisition systems creates additional cyber vulnerability compared to older facilities that operated with purely manual controls, expanding the potential attack surface for sophisticated adversaries seeking to disrupt operations remotely.

// Bottom Line

Every American should understand that the Duke Energy Yadkin Substation represents a critical vulnerability in the electrical grid that supports both civilian communities and military readiness capabilities essential to national security. The December 2022 Moore County attacks proved that these facilities are not just theoretical targets but active focal points for adversaries seeking to disrupt American society and military capabilities with relatively simple tactics and readily available weapons. The facility's role in supporting Fort Liberty alone makes it strategically important to national defense, while its service to Moore County's residents and economy demonstrates how infrastructure attacks can create immediate humanitarian crises and long-term economic damage. The combination of proven vulnerability, strategic importance, and potential for cascading impacts makes this facility a bellwether for infrastructure security challenges across the United States, where thousands of similar substations face comparable risks with potentially catastrophic consequences for American communities and national security.

// Evacuation & Shelter Guidance

// Counties Within Risk Zone