Overview
Sedro-Woolley Substation is an operational electrical substation in Washington State, USA, handling voltages of 115 kV and 230 kV. It plays a key role in regional grid stability under NERC and FERC oversight.
Sedro-Woolley Substation is an operational electrical substation located in Washington State, United States. It operates at voltage levels of 115 kV and 230 kV, classifying it as a high-voltage transmission substation that supports the Pacific Northwest power grid. The facility is part of the broader North American electrical infrastructure, which is regulated by the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC). As a transmission-level substation, Sedro-Woolley Substation likely incorporates modern switchgear and automation systems compliant with standards such as ISO/IEC 61850 for substation automation. The dual-voltage configuration (115 kV and 230 kV) allows it to interconnect different transmission lines, facilitating efficient power flow and voltage regulation. Such substations are critical for maintaining grid reliability, especially in regions with diverse generation sources like hydroelectric, natural gas, and renewables. The substation's location in Washington State places it within a region known for its significant hydroelectric generation and growing renewable energy integration. It serves as a node in the Western Interconnection, supporting load centers and industrial areas. The operational status indicates ongoing maintenance and compliance with NERC reliability standards, ensuring continued service to the local community and broader grid network.
Environmental context
The substation is situated in a temperate climate zone with significant seasonal precipitation, typical of the Pacific Northwest. Its location near the Skagit River valley may require attention to flood resilience and vegetation management to prevent outages. The surrounding area includes agricultural lands and small urban centers, so the substation's electromagnetic fields and noise are managed to minimize local impact. As part of the grid, it supports the integration of renewable energy sources like hydropower and wind, contributing to regional clean energy goals.
Frequently asked questions
Sedro-Woolley Substation is located in Washington State, United States, near the city of Sedro-Woolley. Its approximate coordinates are 48.505361 N, -122.204183 W.
Sedro-Woolley Substation operates at two voltage levels: 115 kV and 230 kV, making it a high-voltage transmission substation that interconnects different parts of the power grid.
As part of the US electrical grid, Sedro-Woolley Substation is subject to reliability standards set by the North American Electric Reliability Corporation (NERC) and economic regulation by the Federal Energy Regulatory Commission (FERC).
A 230 kV substation is a transmission-level facility that steps down high voltage from long-distance lines to lower voltages for regional distribution. It also provides switching, protection, and voltage regulation to ensure grid stability.
Substations in Washington must manage stormwater runoff, oil spill containment from transformers, and vegetation clearance to prevent wildfire risks. They also comply with state and federal environmental regulations to protect local ecosystems.