German energy major RWE AG (<a href="https://www.boerse-frankfurt.de/equity/rwe-ag-st" target="_blank">ETR:RWE</a>) has taken an investment decision for its 50-MW/400-MWh-plus Limondale battery storage project in New South Wales, picking Tesla Inc (<a href="http://https://www.nasdaq.com/market-activity/stocks/tsla" target="_blank">NASDAQ:TSLA</a>) as technology provider.