BayWa Aktiengesellschaft (XTRA:BYW) is in advanced talks with Credit Suisse Group AG (SWX:CSGN) over a sale of a minority stake in its renewables business that could value the unit at €2 billion ($2.2 billion), including debt, two people familiar with the matter said. BayWa has been looking for a buyer of a stake in BayWa r.e. renewable energy GmbH for some time and last month said it expected to conclude the process in the first quarter. BayWa and Credit Suisse had no immediate comment.