Stellantis NV <a href="https://live.euronext.com/en/product/equities/NL00150001Q9-XPAR" target="_blank">(EPA:STLAP) </a>will invest USD 100 million (EUR 93.6m) to buy a 49.5% stake in Argentinian solar power company 360 Energy Solar SA, making a step towards achieving its energy autonomy goal, the Amsterdam-based automaker said on Thursday.