RES-Americas and Energy Northwest Begin Construction on Nine
Canyon Phase III Wind Project

Austin, Texas, May 23, 2007 - Renewable Energy Systems Americas (RES-Americas) and Energy Northwest announced today that construction has begun construction on the 32.2 MW Nine Canyon Phase III Wind Project. With Notice to Proceed on Nine Canyon Phase III, RES-Americas announced that it now has 1,108 MW of wind farms under construction in the United States.

The Nine Canyon project, occupies 47 acres of a 5,120 acre leasehold located southeast of Kennewick, WA located in Belton County. The project expansion will utilize fourteen Siemens MkII 2.3 MW wind turbine generators, and will bring the total capacity for the Nine Canyon Wind Farm to 96 MW.

Brian Evans, Senior Vice President of RES-Americas, Commented;

“This is the third project that RES-Americas has constructed for Energy North West. RES-Americas expects to complete construction of the project in early 2008, at which time this project will be available to deliver clean wind energy to Energy NorthWest's customer base.”

ABOUT RES-AMERICAS - RES-Americas is the North American arm of the RES group of companies. The RES Group was formed in 1982 and is a member of the Sir Robert McAlpine Construction Group. RES-Americas has been active in the US market since 1997 and has had a role in developing or constructing more than 10% of the operating wind projects in the United States and greater than 20% of the installed wind capacity in the state of Texas. RES-Americas corporate office is located in Austin, Texas, and regional offices are located in Portland, OR, Minneapolis, MN, and Montreal, Quebec, Canada. RES-Americas continue to seek new locations for wind projects as well as opportunities to participate in other forms of renewable energy. On the web at http://www.res-americas.com/.

ABOUT ENERGY NORTHWEST - Energy Northwest has been providing clean, reliable, at-cost power to the Northwest since 1964. In cooperation with our member utilities, we are committed to enhancing the economic viability of our region by efficiently and responsibly managing our business operations. More information is available at http://www.energy-northwest.com/.

ENDS