This customer case study outlines Kellogg's efforts to meet its 10-year energy reduction targets for natural gas, electricity, and water usage. The company adopted the AVEVA PI System to analyze energy usage and identify opportunities for savings. Since implementing this system in 2000, Kellogg's has achieved annual savings of $3.3 million and claimed $1.8 million in rebates from energy efficiency improvements. The study details how the company gathered baseline data on energy consumption through the installation of meters and standardized tagging. It highlights specific examples of energy-saving measures, such as retrofitting HVAC controls and optimizing air delivery systems, which resulted in significant cost reductions. The case study emphasizes the importance of data in driving operational changes and achieving sustainability goals. Kellogg's continues to set ambitious energy-reduction targets and leverages data to identify further opportunities for efficiency improvements.