Complex sentence: The project boasts its own 5 Megawatts powerhouse, as compared with those of 2MWs and 1.2MWs-capacity powerhouses of MCB Tower and the Arif Habib Building, respectively; and thus it does not rely on KESC for its power consumption needs.
Split into simpler sentences: The project boasts its own 5 Megawatts powerhouse, compared to the 2MWs and 1.2MWs-capacity powerhouses of MCB Tower and the Arif Habib Building, respectively. As a result it does not rely on KESC for its power consumption needs.