In order to qualify for ENERGY STAR recognition, cement plants must score at least 75 on the Energy Performance Indicator (EPI), used by the EPA to measure energy efficiency. In addition, the plant must have a satisfactory environmental compliance record for the past 3 years. Receipt of the ENERGY STAR certification means these two plants perform in the top 25 percent of similar facilities nationwide.
The ENERGY STAR program focuses on strategic energy management and emphasizes the importance of demonstrating environmental leadership for future generations.
Last year three of Buzzi Unicem's US plants received certification with the third — apart from Chattanooga and Festus — being the San Antonio plant, receiving the certification for the eighth consecutive year.