Tanner Electric was founded in 1936 as Mutual Power and Light Association of Tanner by the rural members who lived along Edgewick Road, southeast of the city of North Bend. By the end of 1937 the cooperative had its first 32 customers; it purchased 6,000 kilowatt hours from Seattle City Light’s Cedar Falls Plant. Since then, Tanner Electric has experienced quite a few changes, and now has 4,462 customer accounts that are both residential and commercial.