IEC Completes Due Diligence Study for Airport Central Utility Plant

Sacramento, Calif., September 5, 2008 – IEC conducted an analysis relating to a Central Utility Plant (CUP) and combined heat and power (CHP) at the Sacramento International Airport to evaluate the cost and equipment selection for an advanced CUP, CHP, and possible thermal energy storage to serve the planned new terminal, hotel, and concourse at the Airport. In addition to the due diligence study, IEC performed a financial analysis of various ownership options.