【明報專訊】CHINA LIGHT AND POWER HOLDINGS(CLP) and China Southern Grid (CSG) have together acquired, for $24 billion, ExxonMobil's stakes in Castle Peak Power and Hong Kong Pumped Storage Development. With Exxon's withdrawal from the Hong Kong electricity market, CSG has become the second largest shareholder in Castle Peak Power. While CLP's cooperation with CSG can create synergistic benefits, the most important question for CLP's customers is what effect this will have on electricity charges.