Helios Solar Works http://wuwm.com en Lights Go Out in Menomonee Valley Helios Solar Plant http://wuwm.com/post/lights-go-out-menomonee-valley-helios-solar-plant <p>Its website shows no sign of change, but Helios Solar Works shut down operations in its Menomonee Valley plant.<br> Mon, 16 Sep 2013 18:38:42 +0000 Susan Bence 13279 at http://wuwm.com Lights Go Out in Menomonee Valley Helios Solar Plant