Standards Publication

FACTS Performance

NEMA US-80062-2025 | Status: Active | ID: 2926927

Flexible AC Transmission Systems (FACTS) play a crucial role in modernizing the power grid by improving its efficiency, stability, and reliability. FACTS devices fall into two categories: shunt-connected reactive power compensation systems, such as Static VAR Compensators (SVCs) and Static Synchronous Compensators (STATCOMs), and series-connected active power compensation systems, such as Fixed Series Capacitors (FSC), Thyristor-Controlled Series Capacitors (TCSCs), and Static Synchronous Series Compensators (SSSC), to provide dynamic control over key electrical parameters like voltage, current, and power flow. This allows utilities to optimize the use of existing transmission infrastructure, reducing the need for costly new power lines while improving grid stability and mitigating grid congestion. By enhancing power flow and improving voltage stability, FACTS devices help to maintain system balance and ensure uninterrupted electricity supply, even during periods of high demand or system stress.

Published Date: September 9, 2025

Number of pages: 9

Staff Contact: Casey Granata

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Keywords

NEMA US-80062-2025, FACTS PERFORMANCE, FLEXIBLE AC TRANSMISSION SYSTEMS (FACTS), US-80062