Puget Sound Energy to Donate Trees to Tree City USA Cities in Recognition of Last Winter's Severe Storm Season and Arbor Day

Business Wire, April 9, 2007

Employee Volunteers Involved in Other Tree-Planting Activities This Month

BELLEVUE, Wash. -- Puget Sound Energy:

Who:  Puget Sound Energy (PSE), a seven-year Tree Line USA award
      recipient, has pledged to donate a tree to every Tree City USA
      city in its service area in recognition of last winter's severe
      storm season and their Arbor Day awards. In addition, PSE, for
      the third consecutive year, is sponsoring the state's Arbor Day
      Poster Contest for fifth-grade pupils, and employee volunteers
      are participating in various community activities in April to
      celebrate Arbor Day and demonstrate the company's long-standing
      commitment to environmental stewardship and neighborhood
      enhancements. As part of its $10 million annual program to prune
      or remove trees along power-line corridors, PSE devotes
      approximately $500,000 each year replanting trees in urban
      areas.

What: Tree-Planting Projects

      Burlington -- (10 a.m. to noon Tuesday, April 10) PSE, in
      conjunction with the Skagit County Parks and Recreation
      Department, will plant approximately 200 PSE-donated trees and
      shrubs along a public walking trail near the junction of State
      Route 20 and Lafayette Road; a luncheon celebration will follow
      in Maiben Park.

      Olympia -- (1 p.m. Saturday, April 21) PSE will join Olympia
      Mayor Mark Foutch, state Public Lands Commissioner Doug
      Sutherland, South Puget Sound legislators, and others in Arbor
      Day awards ceremonies and tree planting at Sylvester Park.
      During the event, Olympia will receive its 14th Tree City USA
      award from the National Arbor Day Foundation.

      Tree Donations

      All cities in PSE's 11-county service area that are receiving a
      2007 Tree City USA award from the National Arbor Day Foundation
      will receive a free, plantable tree of their choosing from PSE
      in recognition of last year's severe storm season and their
      Arbor Day award. Steve Reynolds, chairman, president and CEO of
      PSE, is sending letters this month to the mayors to congratulate
      them on being a Tree City USA city and make the tree offer.
      PSE's managers of local government and community relations will
      work with the cities to get the trees in the ground.

      Tree Line USA

      On April 17 in Las Vegas, PSE will receive its seventh
      consecutive Tree Line USA award from the National Arbor Day
      Foundation. Public Lands Commissioner Sutherland will present
      the state Tree Line USA award to PSE on April 21 during the
      Olympia Arbor Day event. The Tree Line USA award recognizes
      PSE's efforts, as a utility, to protect and enhance urban
      forests while ensuring reliable energy service.

      Arbor Day Posters

      For the third consecutive year, PSE is sponsoring Washington
      state's Arbor Day Poster Contest for fifth-grade pupils. Various
      local art museums, including in Bellevue and Olympia, are
      displaying contestants' posters.

About Puget Sound Energy

Washington state's oldest and largest energy utility, with a 6,000-square-mile service territory stretching across 11 counties, Puget Sound Energy (PSE) serves more than 1 million electric customers and 713,000 natural gas customers, primarily in the Puget Sound region of Western Washington. A subsidiary of Puget Energy (NYSE: PSD), PSE meets the energy needs of its growing customer base through incremental, cost-effective energy conservation, low-cost procurement of sustainable energy resources, and far-sighted investment in the energy-delivery infrastructure. Visit www.pse.com for more information.