DWS: Energy performance

Energy Performance
Average Annual % Improvement5%
Energy Performance
Equivalent Cumulative % Improvement10.2%
Average Annual % Improvement3.0%
Water Performance
Equivalent Cumulative % Improvement28.4%
Average Annual % Improvement9.0%
PORTFOLIO ENERGY PERFORMANCE

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. DWS's portfolio consists of over 60 buildings and nearly 12 million square feet. Since 2016, DWS has improved energy performance by an average of 3.0% each year. Energy savings have been achieved through DWS's robust implementation program, which includes LED retrofits, ASHRAE Level 2 audits, and Active Energy Management (AEM) via smart buliding energy analytics. Energy consumption during 2020 and 2021 was significantly lower than a typical year since COVID-19 disruptions resulted in temporary building closures and reduced occupancy for much of the year. 

PORTFOLIO WATER PERFORMANCE

Better Buildings Challenge Partners strive to decrease portfolio-wide source water use intensity (WUI) and to increase the percent improvement compared to a set baseline. Since 2016, DWS has improved water performance by an average of 9% each year, making progress towards a goal of 20% by 2030. Water savings has been achieved through investment in low-flow restroom fixtures and smart irrigation controllers. Water consumption during 2020 and 2021 was significantly lower than a typical year since COVID-19 disruptions resulted in temporary building closures and reduced occupancy for much of the year. 
 

PORTFOLIO WASTE PERFORMANCE

Better Buildings Waste Pilot cohort participants strive to reduce portfolio-wide waste intensity and absolute waste, as well as increase overall waste diversion. DWS is working towards a goal of 75% waste diversion by 2030 for their office portfolio. As of 2020, DWS  has achieved a waste diversion rate of 44%. Since CWP's baseline year of 2017, they have identified and implemented a range of technologies, strategies and practices resulting in a reduction in waste intensity. Some of these strategies include conducting periodic audits, partnering with janitorial vendors to spot-check collection bins, removing individual under-desk waste containers and shifting to centralized collection bins, and updating to more customized signage to be specific to local waste management guidelines. Better Buildings Challenge diversion rate is calculated with absolute weights of the waste produced by the properties owned that year. Since 2017, DWS has expanded their waste reporting portfolio from four properties to twelve. This expanded portfolio explains the large jump in total waste volume from 2017 to 2019.

*2020 waste disposal is significantly lower than a typical year since buildings experienced reduced occupancy due to COVID-19 disruptions.