Potomac Electric Power Company (PEPCO) has been a reliable source of electric power to customers in Washington, DC, and surrounding counties for almost 120 years. As a function of the ongoing maintenance of its 640-square-mile service area, with the ultimate goal of grid hardening and increased reliability for its 840,000 customers, PEPCO will upgrade certain circuits, add feeders where necessary, and enhance its grid hardening with more reliable solutions in heavily congested or heavily treed areas.
There are a number of ways for a utility to increase hardening to improve reliability and increase capacity. The primary challenge is that the existing poles tend to be very crowded, with little room for additional cable circuits. Short of swapping out poles, which is prohibitively expensive, the primary options that utilities can consider are underground, tree wire, and preassembled aerial cable (PAC).
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