School of Economics and Management,North China Electric Power University,Beijing 102206,China;
Beijing Key Laboratory of New Energy and Low-Carbon Development,North China Electric Power University,Beijing 102206,China;
Department of Mathematics,University of Toronto,Toronto M5S 1A1,ON,Canada;
investment; options; small-scale; photovoltaic; systems; cumulative; prospect; theory; Choquet; integral; intuitionistic; trapezoidal; fuzzy; numbers;