Gillette, WY: Energy performance

Cumulative (vs. Baseline)18%
Annual (2015)5%

Better Buildings Challenge Partners strive to decrease portfolio-wide source energy use intensity (EUI) and to increase the percent improvement compared to a set baseline. Gillette's portfolio consists of 6 buildings and 1 wastewater treatment plant. Energy usage at the wastewater treatment facility makes up roughly 20% of the total portfolio. The chart at the right shows portfolio energy savings over time. Since 2009, Gillette has decreased energy usage in buildings by 18%. Total portfolio energy usage also showed a decrease of 18%. This difference is due to needed repairs at Gillette’s wastewater treatment facility, which has improved safety and efficacy processing but increased energy use since 2009. Some energy savings have been achieved by implementing outdoor lighting retrofits across all properties. The City is initiating a number of other efforts to drive further reductions including HVAC upgrades at City Hall, an Inventory and Tracking Process to engage staff in identifying efficiency opportunities, and an energy awareness campaign in an effort to reduce plug-load.


Looking at the percent improvement in energy performance across all properties can provide insight into how an organization is saving energy. There are 2 properties that have saved more than 10% since 2009. There are two properties that experienced an increase in Source EUI since 2009. These properties have been targeted for future energy efficiency improvements. Gillette built a new warehouse in 2010 that has improved by more than 10% since construction and a new heated storage facility in 2013. They are not included in the graph because they did exist in the baseline year.


Property-level energy performance metrics, including EUI and percent improvement to date, are critical to track progress over time and identify opportunities for additional energy savings. Gillette's portfolio consists of properties with baseline EUI values between 100 and 300 kBtu/sq. ft. The properties located near or below the 0% axis may present good opportunities for further savings. Two buildings built after 2009 do not have a baseline EUI and are not included in this chart.