From the website of NS, the Dutch railway company: ."... 1.4 TWh / year...all sourced from new build wind parks..." It is not only The NS, but all rail companies operating in NL: ProRail, Arriva, Connexxion, Kombi Rail Europe, DB Schenker, ERS Railways, HSL Logistik, Rotterdam Rail Feeding en Rurtalbahn Benelux.