Asset Score Scale
The Asset Score uses a 10-point scale to evaluate the energy efficiency of a building’s physical characteristics and major energy-related systems. The point value is assigned based on a building’s predicted source energy use intensity (EUI) according to the energy simulation results. Scores are rounded to the nearest half-point increment (i.e., “6”, “6.5”, “7”, etc.) A score of 10 is the highest achievable score. It represents the lowest expected energy use for a building of a particular use type that is achievable using current building energy efficiency technologies without renewables.
Overview and Demonstration
Asset Score Webinar: Energy Efficiency Services Companies:
Overview and demonstration of the Asset Score tool for energy efficiency services companies.
Asset Score Webinar: Real Estate and Design Professionals:
Overview and demonstration of the Asset Score tool for real estate and design professionals.
User Inputs and Outputs
Users can collect and enter the following information into the Asset Score:
- General information: Number of floors, footprint dimension, orientation, and use type
- Envelope components: Roof, exterior wall, and floor types and insulation levels
- Fenestration: Skylights, windows, and shading
- Lighting fixtures: Fixture types, number of fixtures or % of served floor area, and lighting controls
- Mechanical components: Cooling and heating types, controls and equipment efficiency
- Service water heating: Fuel type, distribution type, and equipment efficiency
- Operations (used only to identify appropriate efficiency improvements, not for generating the current Asset Score): Electric/gas miscellaneous load, occupants, set points, and operating hours
Detailed information on data collection is contained in the Asset Score Data Collection forms, available in Short Form or Long Form versions for buildings using the Full Input Mode of the tool.
Asset Score Report
The Asset Score Report includes the following information:
- Basic building information, including property address, year built, climate zone, building type, year the energy Asset Score is issued
- Source energy use intensity and the corresponding score
- Potential source energy use and score after the identified upgrades are completed
- Range of energy savings and costs associated with the upgrades
- Source and site energy use breakdown by end use
- System-level (envelope components, lighting, HVAC, and service hot water systems) evaluations
- Improvement opportunities
- List of building asset properties (entered by users and used to model the building)
Asset Score and Energy Modeling
The Asset Scoring Tool uses EnergyPlus as the centralized energy modeling engine. EnergyPlus is a building energy simulation tool commonly used by energy engineers to predict the energy performance of buildings. Users do not need familiarity with this tool to generate an Asset Score. The Asset Scoring tool provides an intuitive interface that guides users through the process.