Danish energy group Ørsted A/S (<a href="https://www.nasdaqomxnordic.com/aktier/microsite?Instrument=CSE122544&name=%C3%98rsted&ISIN=DK0060094928" target="_blank">CPH:ORSTED</a>) has set up a partnership in the United States to roll out 1 GW of battery energy storage systems (BESS) across the US Midwest.