Certified Energy Auditor Practice Exam

What is a near-zero energy home?

1. A home that produces all its energy

2. A home that produces most, but not all of its energy

3. A home that requires no energy from outside sources

4. A home that solely relies on renewable energy sources

The correct answer is: A home that produces most, but not all of its energy

A near-zero energy home is characterized by its ability to produce most, but not all, of its energy needs. This concept is important because it recognizes the practical limitations that homeowners might face in achieving complete energy independence. Typically, a near-zero energy home is designed to be highly energy-efficient, utilizing various strategies such as improved insulation, energy-efficient windows, and renewable energy sources, such as solar panels, to minimize its energy consumption and produce energy on-site. However, it acknowledges that there may still be a minor energy requirement that needs to be met from external sources, especially during periods of high energy demand or low production from renewable sources. This makes option B the most accurate description, as it aligns with the commonly accepted definition of near-zero energy homes in energy auditing and sustainable building practices. By producing the majority of its energy while still being connected to the grid or other external sources, a near-zero energy home effectively reduces its overall energy footprint and promotes sustainability.