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System improvements

Line crews replacing pole

The PUD has kept the lights on and power flowing for our customers for more than 75 years. Reliability is a core value and the work we do every day ensures we deliver that consistent power.

Over the next several years, the PUD will carry out electrical system improvements and preventative maintenance projects to help ensure high levels of reliability to meet the needs of a growing customer base.

Map of PUD Service territory with substations in place

Substation projects

The PUD has more than 100 substations and switching stations across our service area. These substations are critical in delivering power to our customers. As our customer base grows, we must update and upgrade these substations to continue to deliver reliable service. Here’s a look at current substation projects:

  • To increase reliability on Camano Island, the PUD recently rebuilt the North Camano Substation, replacing 1960s equipment with modern, efficient, and environmentally responsible equipment.
  • To increase reliability and support a future battery energy storage system, the PUD has constructed a new Crosswind Substation on its North County Campus in Smokey Point. Estimated completion is 2026.
  • To better serve growing power demands in north Snohomish County, the PUD is upgrading its Lake Goodwin Substation and its Stimson Crossing Switching Station (estimated completion 2027).
  • To better serve the eastern portion of its service area, the PUD upgraded its Clearview Substation (completed 2024) and will be upgrading the Thrashers Corner Substation (estimated completion 2027).
  • To better serve the southern portion of its service area, the PUD plans to upgrade its Brier Substation (estimated completion 2026), and Picnic Point Substation (estimated completion 2027).

Eagle Creek East Arlington Substation

Line projects

  • To provide redundant power to Camano Island, the PUD built a new Stanwood-to-Camano 115-kV line (completed 2023). The rebuild of the existing 115-kV line to Camano Island is estimated to be complete in 2026.
  • To better serve the growing power demands in the northern portion of its service area, the PUD is rebuilding its Stimson-to-Stanwood 115-kV line (estimated completion 2026) and designing and building a new Stimson-to-Sills Corner 115-kV line (estimated completion 2027).
  • The PUD recently completed a portion of the new 115-kV line to feed the new Jennings Park Substation in Marysville. In addition, the PUD will re-conductor about 0.75 miles of 115-kV line near the Jennings Park Substation in 2026.
  • The PUD is working on easements and finalizing the design for the second phase of the 115-kV line to the Sky Valley Substation (estimated completion 2026).
  • The PUD is planning to build a double-circuit 115-kV line to the new Crosswind Substation in Arlington. The Crosswind Transmission Line project is to support a new battery energy storage system project (estimated completion 2027).
  • To improve reliability, the PUD will rebuild the 115-kV line connecting its Perrinville and Maplewood substations (estimated completion 2026).
  • To support load growth and improve reliability in Everett, Marysville and north Snohomish County, the PUD is in the planning stages of building a new 115-kV line to the new Getchell substation (estimated completion 2027) and a new 115-kV line from the Everett to Delta substations. (estimated completion 2027). The new line will support increasing electrical demand in the northern regions of the PUD’s service territory. It will also provide increased reliability and prevent the electric system from experiencing low voltage should local power be interrupted.
  • To maintain reliable service to Hat Island, the PUD is planning to replace the Hat Island submarine cable (estimated completion 2027).

Pole and distribution maintenance

Every year, the PUD:

  • Annually replaces about 500 aging poles
  • Trims trees and branches away from power lines on more than 500 miles of circuits
  • Assesses and treats more than 25,000 poles
  • Replaces 20 to 30 miles of aging underground cables throughout the utility’s service area

View the 2024 PUD Reliability Report

View the 2023 PUD Reliability Report

View the 2022 PUD Reliability Report

View the 2021 PUD Reliability Report

View the 2020 PUD Reliability Report