WATEMS-GDL is an energy-modelling system designed for the easy construction and updating of energy-planning models of the mathematical programming type. This paper describes the development of WWW-WATEMS-GDL, based on WATEMS-GDL. WATEMS-GDL users can use WWW-WATEMS-GDL to put their energy models...

Undesirable output-oriented Data Envelopment Analysis (DEA) models with different return of scales are used to study the CO2 (Carbon dioxide) emissions performance of the transport sector throughout China's 30 administrative regions. Empirical results show that the number of efficient regions...

In this paper, an energy-process model with geometric distributed lag (GDL) demand, called the energy-GDL process model, is updated to aid in energy-related CO2 emission control policy analysis. The updated model was formulated, constructed and solved with the updated GDL version of the Waterloo...