EPAderived

EPAderived refers to a method of estimating the energy consumption of a building or facility based on the energy performance of a similar building or facility that has been measured and verified. This approach is commonly used in the context of energy performance contracting (EPC) and energy performance audits.

The EPAderived method involves the following steps:

1. Identification of a reference building: The first step is to identify a building that is similar to the subject building in terms of size, type, location, and other relevant factors. This reference building should have been measured and verified for its energy performance.

2. Adjustment for differences: The energy consumption of the reference building is then adjusted to account for any differences between the reference building and the subject building. These differences can include variations in size, occupancy, climate, and other factors.

3. Calculation of the subject building's energy consumption: The adjusted energy consumption of the reference building is then used to estimate the energy consumption of the subject building.

The EPAderived method is often used when it is not feasible or cost-effective to measure and verify the energy performance of the subject building directly. It is important to note that the accuracy of the EPAderived method depends on the similarity between the reference building and the subject building, as well as the quality of the data used for the adjustment.

The EPAderived method is regulated by the U.S. Department of Energy's Energy Star program, which provides guidelines and standards for energy performance contracting and audits. The EPAderived method is also used in other countries and regions, although the specific regulations and guidelines may vary.