Indonesia begins to prepare a long-term GHG emissions reduction target (2050), which is commonly called Long Term Strategy (LTS). In line with this National LTS, DKI Jakarta is preparing its Provincial LTS aiming to establish the Low Carbon Development Strategy (LCDS) for achieving the Low Carbon Society (LCS). In conjunction with this DKI Jakarta LCDS preparation, a study concerning low carbon development scenario toward 2050 has been conducted. The tool used in this research is non-linear programming model ExSS using GAMS v 23.3 supported by various technical, economic and social parameters. The mitigation scenario is developed to envision the development paths to achieve low carbon city. The study assumes that in 2010-2050 the GDP of DKI Jakarta would grow, on average, 5.7% per year. Under the BaU scenario, GHG emissions associated with energy used will increase from 28.249 Mton CO2e (2010) to 165.274 Mton CO2e (2050). While, under the Counter Measures scenario, the GHG emissions level will be reduced to 121.804 Mton CO2e (2050), which is equivalent to 43.470 Mton CO2e (22.95%) reduction compared with DKI Jakarta BaU scenario. The reduction is achieved through various Counter measures scenario such as the end-user efficiency improvement measures, fuel switching, change of transport mode, deployment of advanced technology such as electric vehicle fueled using renewable source, and promotion of solar PV system.