French retailer Casino Guichard Perrachon SA (<a href="https://live.euronext.com/en/product/equities/fr0000125585-xpar" target="_blank">EPA:CO</a>) said today that it has reached an agreement to sell its remaining minority stake in domestic renewable energy company GreenYellow, which it founded in 2007, for net proceeds of about EUR 46 million (USD 49.5m).