TY - JFULL AU - Alexander Y. Vaninsky PY - 2009/7/ TI - Environmental Performance of the United States Energy Sector: A DEA Model with Non-Discretionary Factors and Perfect Object T2 - International Journal of Energy and Environmental Engineering SP - 125 EP - 131 VL - 3 SN - 1307-6892 UR - https://publications.waset.org/pdf/3241 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 30, 2009 N2 - It is suggested to evaluate environmental performance of energy sector using Data Envelopment Analysis with nondiscretionary factors (DEA-ND) with relative indicators as inputs and outputs. The latter allows for comparison of the objects essentially different in size. Inclusion of non-discretionary factors serves separation of the indicators that are beyond the control of the objects. A virtual perfect object comprised of maximal outputs and minimal inputs was added to the group of actual ones. In this setting, explicit solution of the DEA-ND problem was obtained. Energy sector of the United States was analyzed using suggested approach for the period of 1980 – 2006 with expected values of economic indicators for 2030 used for forming the perfect object. It was obtained that environmental performance has been increasing steadily for the period from 7.7% through 50.0% but still remains well below the prospected level ER -