PSE plans area upgrade projects

  • Wednesday, September 17, 2008 5:59pm
  • Business

Puget Sound Energy is investing approximately $421 million in service-area infrastructure improvements in 2008, of which about $247 million is earmarked for capacity and reliability upgrades, and about $174 million is allocated to meet growing customer needs.

PSE’s 2008 electric system investments include:

• Building four miles of new 230 kilovolt (kV) transmission line and five miles of new 115 kV transmission line.

• Replacing old power lines with new power lines along 54 miles of PSE’s transmission system.

• Replacing or injecting with silicone (to extend the life of cable) approximately 70 miles of underground cable.

• Replacing 800 poles.

PSE’s 2008 natural gas system investments include:

• Installing approximately 200 miles of new natural gas main, including replacing approximately 20 miles of older, uncoated steel main.

• Annually leak-surveying 12,000 miles of pipeline.

Projects locally include:

• Kent-Black Diamond natural gas line – Upgrading the Kent/Auburn natural gas system at an estimated cost of $5.25 million to reinforce the existing system currently serving Kent, Auburn, Federal Way and Vashon Island.

Anticipated schedule: begin construction fall – winter 2008.

• Covington-Berrydale 230 kV – Building a new transmission line at an estimated cost of $12.6 million to improve reliability and meet growth needs in the Covington area. Anticipated completion: fall 2008.

• Four Corners substation – Building a new electric distribution substation at an estimated cost of $5.5 million to meet increased demand for electricity in the Maple Valley area. Anticipated schedule: begin construction spring 2009.

• Kent-Black Diamond natural gas line – Upgrading the Kent/Auburn natural gas system at an estimated cost of $5.25 million to reinforce the existing system currently serving Kent, Auburn, Federal Way, and Vashon Island. Anticipated schedule: begin construction fall – winter 2008.


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