Residential single family zero energy home with photovolatic and solar water heating systems on top of a light brown shingled roof and beige wallswith trees in background, photo.

Energy use in virtually any Florida building can be cost-effectively reduced by at least 15-30%, saving owners thousands of dollars over the life of their buildings. With skill, building energy use can be reduced by as much as 60-75% if the most efficient technologies are employed in new buildings or where existing buildings are very inefficient.

How to Reduce Energy Costs in Existing Homes

What Makes the Meter Spin? 40% Heat/Cool, 20%WH, 20% Appl, 20% MiscTotal annual electric and gas energy use typically falls into four categories: heating and cooling, water heating, kitchen laundry, and lighting and plug-ins.  Utility bill costs the average Florida homeowner five percent of their total annual after-tax income. Floridians are currently paying about 12 cents per kilowatt hour (kWh) for electricity. Without close monitoring, electrical use can easily push utility costs over $150 per month.

Learn More: How to Reduce Energy Costs in Existing Homes

What is a Home Energy Rating?

House energy use graphic in bar chart format.

Similar to a miles per gallon (mpg) rating for your car, a home energy rating grades the energy efficiency of your house.  This value is calculated using the Home Energy Rating System (HERS), developed by ResNet.  An energy-efficient home has lower electricity bills and you create a smaller carbon footprint.  Many homes can benefit from energy efficient improvements, some of which have a payback period of only a few months. Learn More


Find an Energy Rater.

To learn how to improve your home’s HERS index, visit the ResNet website.

New Homes Certification Programs

Home Designs




The Energy Star logoENERGY STAR®
Simplify the process of finding energy efficient products and homes by looking for the Energy Star label.

Mold Infographic
Learn how to minimize mold growth in your home.

EPA color logoIndoor Air Quality
Visit the EPA’s website on Indoor Air Quality to learn ways to clean the air in your home.