August 12 (SeeNews) - Abu Dhabi-based conglomerate International Holding Company, or IHC, said it has acquired 50% of Turkey's Kalyon Enerji, the renewables arm of construction, energy and aviation group Kalyon Holding, for 1.8 billion Emirati dirham ($490.1 million/ 477.1 million euro), adding several solar and onshore wind projects to its portfolio.