On average, Americans spend about 90% of their time indoors. So the buildings where we work, learn, and shop have an important role to play in our wellbeing. At the same time, buildings also contribute to the health of our surrounding environment. In 2015, about 40% of total U.S. energy consumption was consumed in residential and commercial buildings. And commercial buildings are responsible for nearly 20% of our nation's greenhouse gas emissions.
Improving energy efficiency has proven to be one of the fastest and most cost-effective ways for businesses and organizations to save money, create jobs, and improve employee wellbeing. Plus, facility improvement measures can actually improve employee productivity by creating more comfortable spaces for people to work.
Since 2010, EPA has run the ENERGY STAR® Battle of the Buildings, which enlists interested building owners from across the country to compete in saving energy and water.
Last year, more than 125 teams -- made up of at least five buildings each -- along with thousands of individual buildings signed onto the challenge, setting out to slim down their energy and water "wastelines" by making behavioral changes, upgrading inefficient equipment, and optimizing mechanical systems.
The 2015 results are in. All told, last year's Battle of the Buildings competitors achieved impressive savings, to say the least. More than 60 buildings cut energy use by 20 percent and 40 buildings cut water use by 20 percent or more in just 12 months.
Here are the stories of top-placing teams:
GOLD FOR ENERGY: Texas A&M University -- ESCO Project, in College Station, improved energy efficiency by 35 percent and saved nearly $550,000 across their six competing buildings. All told, they prevented more than 1,700 metric tons of greenhouse gas emissions, equivalent to the emissions from the annual energy used by more than 150 homes. The team completed a full lighting retrofit, updated the building automation system, and installed occupancy sensors and a pump variable frequency drive. They maximized savings related to heating and cooling by connecting lighting occupancy sensors to an automation system that controls the HVAC system. They also appointed a full-time team to work closely with students and faculty to ensure comfort while conserving energy.
GOLD FOR WATER: Team Boys & Girls Clubs All Stars cut water use by more than 50 percent across their 12 competing buildings in seven different states, with help from their "coaches" at the Southface Energy Institute. The biggest savings opportunities came from eliminating water leaks, upgrading plumbing fixtures, securing faucets, and replacing toilets and urinals with low-flow equipment. The Boys & Girls Clubs also switched from potable water to rainwater for some of their educational projects. Today, the building features a new rainwater harvesting system that collects water from the roof of the facility for use in the garden. Savings from reduced water costs have allowed the Boys & Girls Club to allocate more resources toward hiring staff, purchasing program supplies, and fulfilling its mission: "Enabling all young people, especially those who need us most, to reach their full potential as productive, caring, responsible citizens."
Check out the full list of winners and a wrap-up report with advice and best practices on the competition web page.
Do you have what it takes to join the Battle of the Buildings?
This year, the competition will return as the 2016 ENERGY STAR BOOTCAMP -- a 90-day competition to reduce energy and water use in our nation's buildings. Register to participate in the 2016 ENERGY STAR BOOTCAMP now through July 17, 2016.