2015 National Building Competition Final Results banner

The ENERGY STAR® Battle of the Buildings is an annual competition that challenges building owners and managers to reduce energy and water use, and save money, over a one-year period.

Learn from past winners

In 2010, when EPA launched the first-ever ENERGY STAR National Building Competition, 14 competitors went head-to-head for the title of Biggest Energy Loser. Since then, more competitors join the race every year, and the energy savings – and positive environmental impacts – multiply with every competition. While one team and building emerge as winners, thousands of buildings have reduced their energy waste with help from ENERGY STAR.

Download the wrap-up reports below to learn the best practices that led them to victory!

Texas A&M 2015 Team Winner

Texas A&M – ESCO Project team
Reduced energy use by: 35.5%
Est. cost savings: $548,900
Greenhouse gas emissions prevented: 1,726 metric tons
Download the 2015 report

Woodville 2015 Building Winner

Woodville Chapel
Reduced energy use by: 89.4%
Est. cost savings: $100
Greenhouse gas emissions prevented: 1
Download the 2015 report

2014 Winner Going Blue for Woodville

Going Blue for Woodville
Reduced energy use by: 24.8%
Est. cost savings: $2,004
Greenhouse gas emissions prevented: 17 metric tons
Download the 2014 report

2014 Winner Woodville Chapel

Woodville Chapel 
Reduced energy use by: 68.4%
Est. cost savings: $236
Greenhouse gas emissions prevented: 2 metric tons
Download the 2014 report

2013 Winner Claiborne Elementary School

Claiborne Elementary School
Reduced energy use by: 45.9%
Est. cost savings: $294,300
Greenhouse gas emissions prevented: 490 metric tons
Download the 2013 report

2012 Winner Demarest Elementary School

Demarest Elementary School
Reduced energy use by: 52%
Est. cost savings: $75,900
Greenhouse gas emissions prevented: 267 metric tons
Download the 2012 report

2011 Winner University of Florida

University of Florida, Parking Garage C
Reduced energy use by: 62.7%
Cost savings: $34,907
Greenhouse gas emissions prevented: 258 metric tons
Download the 2011 report

2010 Winner Morrison Hall

Morrison Hall, UNC at Chapel Hill
Reduced energy use by: 35.7%
Energy saved: 11.7 million kBTU
Greenhouse gas emissions prevented: 733 metric tons
Download the 2010 report