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HERS Index Scoring Flashcards

7 cards from real HERS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 HERS Index Scoring flashcards as text
  1. A home receives a HERS Index score of 0. What does this indicate?

    Answer: The home is a net-zero energy home that produces as much energy as it consumes

    A HERS Index of 0 indicates a net-zero energy home where annual energy production equals annual energy consumption.

  2. Which software tool is most commonly used by certified HERS raters to calculate HERS Index scores?

    Answer: REM/Rate or equivalent RESNET-approved software

    HERS raters use RESNET-approved software such as REM/Rate, EnergyGauge, or equivalent tools to calculate HERS Index scores.

  3. If a home's HERS Index is 85, approximately how much more or less energy does it use compared to the HERS reference home?

    Answer: 15% less energy than the reference home

    A HERS Index of 85 means the home uses 15% less energy than the reference home (100 − 85 = 15%).

  4. What is the primary purpose of the HERS reference home in the rating system?

    Answer: To provide a standardized baseline for comparing energy performance

    The HERS reference home is a standardized baseline built to the 2006 IECC with RESNET modifications, used to compare the rated home's energy performance.

  5. Which of the following home features would most directly LOWER a home's HERS Index score?

    Answer: Installing rooftop solar photovoltaic panels

    Rooftop solar PV panels generate on-site renewable energy, which reduces net energy consumption and can significantly lower the HERS Index score.

  6. Under RESNET standards, a Confirmed HERS Rating requires the rater to perform which of the following?

    Answer: On-site inspections and testing including blower door and duct leakage tests

    A Confirmed HERS Rating requires the rater to conduct on-site inspections and performance tests such as blower door and duct leakage testing to verify actual construction.

  7. A home with a HERS Index of 130 is best described as:

    Answer: 30% less energy efficient than the reference home

    A HERS Index above 100 means the home uses more energy than the reference home; a score of 130 means it uses 30% more energy.