What Is a Home Energy Rating?

What Is a Home Energy Rating?If you want to address inefficiencies that are negatively impacting your household energy consumption and costs, a home energy rating can help. An energy rating thoroughly evaluates your home’s energy performance and offers targeted solutions to improve overall efficiency.

Home Energy Rating Basics

The home energy rating system (HERS) was developed by the non-profit Residential Energy Services Network (RESNET). Today, it’s the recognized standard for assessing home energy performance. Assessments are performed by professional RESNET-certified energy raters who have completed rigorous training and passed a stringent exam.

How Do Home Energy Ratings Work?

A professional energy rater uses various methods to investigate the state of your home’s efficiency:

  • Specialized testing is performed to assess the effectiveness of existing insulation, identify areas of energy loss through the envelope and ductwork, and evaluate HVAC system and water heating efficiency.
  • The efficiency of structural components are also examined, including the basement, attic, foundation, windows and doors.
  • Other factors that affect energy efficiency are evaluated as well, such as lighting, appliances and the structure’s solar orientation.

The gathered data is then analyzed by a proprietary RESNET software program that factors in the local climate and average national energy consumption. The program compares your home to an imaginary “reference home” of identical shape, size and type, and your home receives a numerical rating based on the results.

A single point on the rating scale represents a one-percent change in efficiency, and the greater a home’s efficiency, the lower the rating. The reference home is assigned a rating of 100, which is considered the efficiency of a standard new home. According to the Department of Energy, an average resale home receives a rating of 130.

The rating also includes a comprehensive report that details your home’s efficiency in four major areas: cooling, heating, water heating and lighting/appliances. The report provides a list of recommended improvements with a cost/benefit analysis and return on investment to help you plan and prioritize upgrades.

For more information on how a home energy rating can help you improve efficiency, contact the southwest Oklahoma HVAC pros at Davis Air Conditioning today.

Our goal is to help educate our customers in the Lawton and Duncan, Oklahoma area about energy and home comfort issues (specific to HVAC systems).

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