King County Parks North Utility Maintenance Facility

Project Details

Owner: King County Parks

Architect: Wagner Architects and Planners

Consulting Engineer: Sider & Byers Associates

General Contractor: Pellco Construction
Total SF: 56,628 square feet
Location: Redmond, WA

Energy Performance: ILFI Zero Energy Certified; EUI 27 kBTU/sf/yr

The North Utility Maintenance Facility is a capital asset managed by the King County Parks and Recreation Division (KCParks). It is an existing Parks maintenance and operations facility that includes a crew/ workshop building and a parking/ workshop building. The work of the North Utility crew supports the maintenance and operation of King County Regional Trails north of I-90. These include the Sammamish River Trail, Burke-Gilman Trail, and East Lake Sammamish Trail, among others.

The facility underwent a series of energy efficiency facility upgrades from 2016 to 2018 to improve the environmental and sustainable features and building performance. The project began with the installation of solar panels planned to produce enough renewable energy to cover the energy load for the facility. KC Parks in partnership with David Broustis, King County Department of Natural Resources Energy Manager, and supported by a Washington State Department of Commerce grant, completed the installation of a 37.5 kilowatt photo-voltaic (PV) system on the roof of the North Utility crew building in 2017. It was expected to produce 33,200 kilowatt hours of electricity per year. The PV system is interconnected to the Puget Sound Energy electric grid network and began producing solar power on August 8, 2017. Following this initial solar panel installation, additional energy upgrades to the crew building, including the installation of a new energy efficient HVAC system and changing to LED lights, further improved the energy performance of the building.

The facility reached Zero Energy following a second solar panel installation on the south roof of the parking/ workshop building in mid-2018 that raised the expected solar energy production at the facility to 44,600 kilowatt hours of electricity for 2018.

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