Denmark's Vestas Wind Systems A/S (<a href="https://www.nasdaqomxnordic.com/aktier/microsite?Instrument=CSE3258&name=Vestas%20Wind%20Systems&ISIN=DK0061539921" target="_blank">CPH:VWS</a>) has secured a contract to supply its hardware for a 155-MW wind farm expansion project undertaken by New Zealand power generator and retailer Mercury NZ Ltd (<a href="https://www.nzx.com/companies/MCY" target="_blank">NZE:MCY</a>).