The　solar-driven　combined　heat　and　power　system　provides　an　efficient　and　green　approach　for　the　energy　demand　in　remote　areas.　In　this　study,　a　two-tank　molten　salt　thermal　storage　system　is　coupled　with　solar　parabolic　trough　collectors　and　feeds　an　organic　Rankine　unit　that　produces　electricity　and　heating.　Specially,　the　organic　Rankine　unit　can　operate　in　off-design　conditions　following　the　end-user　electricity　load　demand.　The　configuration　of　the　complete　system　is　parametrically　investigated　and　dynamically　optimized　aiming　to　identify　the　operating　conditions　for　which　the　net　present　value　is　maximized.　The　optimal　arrangement　for　Lhasa　is　found　to　be　a　1175-m2　solar　parabolic　trough　field　and　two　50-m3　molten　salt　storage　tanks.　The　monthly　results　show　that　this　optimal　case　is　able　to　run　uninterruptedly　the　whole　month　in　November　and　December　with　a　100%　monthly　electricity　supply　reliability　rate.　Furthermore,　the　application　of　this　system　for　typical　cities　in　western　China　is　optimized　and　compared.　The　best　economical　location　for　the　apparatus　is　in　Ejinaqi,　with　a　maximum　net　present　value　of　1471　thousand　dollars,　of　which　carbon　reduction　benefit　account　for　8.8%,　and　the　payback　period　is　only　5.4　years.　Moreover,　the　yearly　energy　efficiency,　exergy　efficiency,　electricity　supply　reliability　rate　and　solar　abandonment　rate　for　optimal　case　of　Ejinaqi　are　55.0%,　20.2%,　93.9%　and　25.4%,　respectively.　The　study　demonstrates　that　the　proposed　apparatus　can　be　a　promising　option　to　provide　energy　for　remote　areas　faced　with　poorly　power　grid.