PARIS, Oct 8 (Reuters) - French state-controlled electricity utility EDF (EDF.PA: Quote, Profile, Research) will order at least six gas turbines and associated services from GE Energy (GE.N: Quote, Profile, Research) for more than 530 million euros, equivalent to $750 million, the U.S. group said in a statement on Monday. "In addition to the contracts announced today, EDF has signed options to purchase additional gas turbines and services from GE. If those options are exercised, the total value of EDF's agreements with GE could exceed EUR 900 million ($1.2 billion)," the statement said. It said the initial six turbines would...