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The Tower Companies

Tower Companies

Energy Performance


20% Reduction in Energy Intensity by 2020 from a 2010 Baseline


2.8 Million Square Feet


Cumulative (vs. Baseline) 10%
Annual (2013) 3%

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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. Tower's portfolio, which includes Tower owned buildings that are also managed by the company, consists of 11 buildings and 3 million square feet of multi-tenant commercial office and high-rise residential properties. Compared to a 2010 baseline, Tower has improved energy performance by 10% due in large part to implementing a Real-Time Energy Management Program focused on low-cost ECMs and sustainable operations, LED lighting retrofits, BMS control upgrades, and equipment upgrades. There are other properties that The Tower Companies owns but that are not managed directly and therefore aren’t being included in this program.

Energy Performance by Facility

Looking at the percent improvement in energy performance across all facilities can provide insight into how an organization is saving energy. As part of our Energy Management Program, Tower sets annual energy reduction goals for both commercial office and residential buildings and tracks progress on a monthly and quarterly basis. Due to successful ECMs and consistent sustainable operations, Tower has achieved energy performance improvement of greater than 10% at 6 of its properties and greater than 6% at 1 property. Energy reduction plans are customized and tracked for each property and best practices are shared between properties to help meet goals.

Identifying Opportunities for Improvement

Facility-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. Tower's portfolio consists of properties with a wide range of baseline EUI values, most of which are between 100 and 250 kBtu/sq. ft, and the majority have shown energy improvement since the 2010 baseline year. The Energy Management Program allows for daily, monthly, quarterly, and annual review and progress tracking to ensure that energy usage and EUI values are moving in the right direction - downward.