Renewable Energy Conferences.com | Renewable Energy Events, Conferences, Exhibitions, Training and Seminars: Pöyry awarded HVAC design contract in Switzerland Pöyry awarded HVAC design contract in Switzerland ================================================================================ REC.com on 28/05/2010 18:59:00 Pöyry awarded EUR 1.7 million HVAC design contract for pumped storage hydropower plant in Switzerland.