DTE Energy has committed to reducing its utilization of energy at company headquarters, administrative offices, and service centers by at least 25% by 2022 from the baseline year of 2017. The annual savings from these energy efficiency projects in 2020 was approximately 7,600 MWh which translates to approximately 5,300 metric tons of CO2 savings. This equates to a 14.8% savings for 2020 alone, bringing the total for period 2018-2020 to a 23.6% reduction in overall energy usage. DTE Energy utilizes industry standards and methodologies from various organizations such as ASHRAE (The American Society of Heating, Refrigerating and Air-Conditioning Engineers, a global professional association seeking to advance heating, ventilation, air conditioning and refrigeration systems design and construction) and IESNA (Illuminating Engineering Society of North America, a recognized technical and educational authority on illumination) to develop baseline consumption and calculate energy savings. Measurement and verification are also implemented via actual metered consumption. DTE Energy takes care of the land, water and living creatures on its properties and beyond. Among the largest landowners in Michigan, DTE Energy voluntarily maintains 8,000 acres of land in its natural state, thereby providing habitat for hundreds of species of birds, mammals, fish and insects. The company also reclaims previously disturbed land to create and manage habitat featuring native Michigan plants, such as gardens that benefit the monarch butterfly and other pollinators. It also manages about 150 acres to support biodiversity required for mitigation.