KHOBAR, Saudi Arabia, May 14 (Reuters) - Saudi water and power project developer ACWA Power has picked Banque Saudi Fransi to arrange its flotation on the kingdom's stock exchange, the company's managing director confirmed on Wednesday. Reuters reported in March that the lender's investment banking arm, Saudi Fransi Capital, would arrange the offering, which was likely to take place before the end of the year or in the early part of 2015. Confirming the mandate, Thamer Al-Sharhan said that the company was trying to get the initial public offering completed this year, although this timeframe wasn't certain. ACWA has developed a number of projects in Saudi Arabia and has also worked on schemes in Oman, the United Arab Emirates, Mozambique and Morocco.