Beijing,　as　the　capital　of　China,　is　under　the　high　pressure　of　climate　change　and　pollution.　The　consumption　of　non-renewable　energy　is　one　of　the　most　important　sources　of　the　CO2　emissions,　which　cause　climate　changes.　This　paper　presents　a　study　on　the　energy　system　modelling　towards　renewable　energy　and　low　carbon　development　for　the　city　of　Beijing.　The　analysis　of　energy　system　modelling　is　organized　in　two　steps　to　explore　the　alternative　renewable　energy　system　in　Beijing.　Firstly,　a　reference　energy　system　of　Beijing　is　created　based　on　the　available　data　in　2014.　The　EnergyPLAN,　an　energy　system　analysis　tool,　is　chosen　to　develop　the　reference　energy　model.　Secondly,　this　reference　model　is　used　to　investigate　the　alternative　energy　system　for　integrating　renewable　energies.　Three　scenarios　are　developed　towards　the　energy　system　of　Beijing　in　2030,　which　are:　(i)　reference　scenario　2030,　(ii)　BAU　(business　as　usual)　scenario　2030,　and　(iii)　RES　(renewable　energies)　scenario　2030.　The　100%　renewable　energy　system　with　zero　CO2　emissions　can　be　achieved　by　increasing　solar　energy,　biomass　and　municipal　solid　waste　(MSW)　and　optimizing　heating　system.　The　primary　fuel　consumption　is　reduced　to　155.9　TWh　in　the　RES　scenario,　which　is　72%　of　fuel　consumption　in　the　reference　scenario　2030.　(C)　2017　Elsevier　Ltd.　All　rights　reserved.