Sound Transit to use wind energy to operate trains from 2019; invites RfQs to develop alternatives to extend LRT to West Seattle and Ballard April 18, 2017 | North America News Seattle’s Sound Transit has signed a 10-year agreement with Puget Sound Energy (PSE) to operate light-rail trains using wind energy under the Green Direct programme from 2019 onwards. The initia... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password