Spanish energy company Iberdrola is likely to acquire Australian wind and solar developer Infigen Energy for $581 million (USD), after an international bidding war to expand its presence in the Australian market. The takeover bid of $0.59 dollars per share (stapled security), tops a bid from Philippine conglomerate the Ayala Group by 7.5%, with the offer being supported by Infigen’s largest shareholders, The Children’s Investment Master Fund and TCI Funds. Infigen has previously urged shareholders to reject Ayala’s bid under the expectation that Iberdrola would bid higher and with fewer strings attached. On the advice of Japanese investment bank Nomura, the deal represents a 69.8% premium against the three-month volume weighted average price of Infigen’s shares in the lead up…