Energy Use Index
Energy Use Index (EUI): Total energy (electricity, natural gas and imported steam) consumed by Texas Tech University (all facilities in Texas owned by TTU) expressed as thousands of British Thermal Units (BTUs) divided by the Occupied Square Foot conditioned spaces only. All energy, interior and exterior, is aggregated in the numerator, but the square footage of only the occupied spaces are counted in the denominator. The solid black line represents TTU's long term Energy Use Index goal of 117. The green column represents the goal for FY15.