Akaysha Energy Pty Ltd, the Aussie battery energy developer backed by BlackRock Inc (<a href="https://www.nyse.com/quote/XNYS:BLK" target="_blank">NYSE:BLK</a>), has energised the substation connected to its 850-MW/1,680-MWh Waratah Super Battery (WSB) energy storage project in New South Wales, Australia.