(WHAS11) - In this Project Green, Sullivan University isn't just decreasing their carbon footprint.
They're saving money and building quieter residence halls, all at the same time.
Gardiner Point is the newest residence hall at Sullivan and if you've seen it off the Watterson Expressway, you may have noticed the 16 solar panels on the roof.
The panels are used to heat the water more than 100 students will use to shower in that new dorm.
The walls and windows are more energy efficient too - built with extra insulation to keep out traffic noise, but it will also cut down on heating and cooling costs.
Sullivan engineers say this system will pay for itself through energy savings within the next 10 years.