Italy’s second-largest power producer Edison said late on Wednesday it had signed an agreement to set up a 50:50 joint venture in the power market with Greece’s Hellenic Petroleum. In a statement, Edison said the companies would confer a total of 1,400 megawatts of assets – existing and planned – to the joint venture. Edison said the companies aimed to make the venture the second-largest electric power operator in Greece with about 12 percent of the market.