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Nadeschda Hoidn Wiede serves as the Chairwoman of the Board of Directors at Biogas Zürich AG and bolay.co SA, and holds the position of Managing Partner at ZWEI Wealth Experts AG. Additionally, Nadeschda is a Board Member for Quatico Solutions AG and Biogas Zürich AG. Previous roles include Head of Business Development and Head of Renewable Energy Asset Management at ewz from 2008 to 2018, and Managing Director of ewz (Deutschland) GmbH. Nadeschda has held several board positions, including President of the Board of Directors at Energie Naturelle Mollendruz SA and Member of the Investors' Committee at OWP Butendiek GmbH & Co. KG. Nadeschda's educational background includes a lic.oec.HSG in Business Administration from the University of St.Gallen, along with studies at the Ecole de Jazz in Montreux.