Tools and Resources

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Portfolio Manager Technical Reference: Estimating Fuel Mix and Energy Cost

Last Updated: 02-19-2021

When establishing energy performance targets early in a project’s design stage, exact fuel mix and energy costs are often not known. In these cases, Portfolio Manager and Target Finder will provide an estimated fuel mix and energy cost to help you assess how to reach your target performance level. Reference this 7-page document for information about using Portfolio Manager and Target Finder to estimate fuel mix and energy cost.

Topic: Commercial building design, Energy management guidance, Portfolio Manager, Technical reference, Target Finder
Resource Type: Technical documentation
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Portfolio Manager Technical Reference: Climate and Weather

Last Updated: 02-19-2021

The climate of the area where your property is located and the annual fluctuations you experience in weather conditions can affect how much energy you need to operate your buildings. Portfolio Manager includes metrics designed to incorporate these effects and help you understand your energy performance. These procedures rely on temperature data collected by weather monitoring stations and published by the National Climatic Data Center (NCDC), which is part of the National Oceanic and Atmospheric Administration (NOAA). To discuss how we use this data, it is helpful to introduce two concepts:

Topic: Portfolio Manager, Technical reference
Resource Type: Technical documentation
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Portfolio Manager Technical Reference: Greenhouse Gas Emissions

Last Updated: 10-28-2020

The energy used in commercial buildings results in significant emissions of greenhouse gases (GHGs) linked to global climate change, making buildings an important part of your GHG inventory. In order to help you assess the emissions footprint associated with your energy consumption, Portfolio Manager incorporates a number of metrics to quantify these emissions.

Topic: Portfolio Manager, Technical reference
Resource Type: Technical documentation
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Portfolio Manager Technical Reference: Source Energy

Last Updated: 10-28-2020

Commercial buildings all use different mixes of energy including electricity, natural gas, fuel oil, district steam, and many others. To evaluate energy performance for these buildings, we have to express all of these different energy types in a single common unit. Source energy is the most equitable unit of evaluation, and enables a complete assessment of energy efficiency.

Topic: Portfolio Manager, Technical reference
Resource Type: Technical documentation
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ENERGY STAR Score for Offices

Last Updated: 07-22-2019

The ENERGY STAR Score for Offices applies to office, bank branch, financial office, and courthouse property types. The objective of the ENERGY STAR score is to provide a fair assessment of the energy performance of a property relative to its peers, taking into account the climate, weather, and business activities at the property. To identify the aspects of building activity that are significant drivers of energy use and then normalize for those factors, a statistical analysis of the peer building population is performed. The result of this analysis is an equation that will predict the energy use of a property, based on its experienced business activities. The energy use prediction for a building is compared to its actual energy use to yield a 1-to-100 percentile ranking of performance, relative to the national population.

Topic: Portfolio Manager, ENERGY STAR score calculation details, Technical reference
Resource Type: Technical documentation
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Analysis and Key Findings from EPA's Review of the ENERGY STAR Score Model for Retail Properties

Last Updated: 07-17-2019

This six-page report summarizes the results of EPA's review of the 1-100 ENERGY STAR score model for retail properties.

Topic: Portfolio Manager, ENERGY STAR score calculation details, Technical reference
Market Sector: Retail
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Analysis and Key Findings from EPA's Review of the ENERGY STAR Score Model for Office Properties

Last Updated: 07-15-2019

This five-page report summarizes the results of EPA's review of the 1-100 ENERGY STAR score model for office properties.

Topic: Portfolio Manager, ENERGY STAR score calculation details, Technical reference
Market Sector: Corporate real estate
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Analysis and Key Findings from EPA's Review of the ENERGY STAR Score Model for Supermarket Properties

Last Updated: 07-15-2019

This six-page report summarizes the results of EPA's review of the 1-100 ENERGY STAR score model for supermarket properties.

Topic: Portfolio Manager, ENERGY STAR score calculation details, Technical reference
Market Sector: Retail
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Portfolio Manager Technical Reference: U.S. National Energy Use Intensity

Last Updated: 08-28-2018

When you benchmark your building in Portfolio Manager, one of the key metrics you’ll see is energy use intensity, or EUI. Essentially, the EUI expresses a building’s energy use as a function of its size or other characteristics.

Topic: Portfolio Manager, Technical reference
Resource Type: Technical documentation
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ENERGY STAR Score for Wastewater Treatment Plants

Last Updated: 08-24-2018

The ENERGY STAR Score for Wastewater Treatment Plants applies to primary, secondary, and advanced treatment facilities with or without nutrient removal capacity. The objective of the ENERGY STAR score is to provide a fair assessment of the energy performance of a property relative to its peers, taking into account the climate, weather, and business activities at the property. To identify the aspects of building activity that are significant drivers of energy use and then normalize for those factors, a statistical analysis of the peer building population is performed. The result of this analysis is an equation that will predict the energy use of a property, based on its experienced business activities. The energy use prediction for a building is compared to its actual energy use to yield a 1 to 100 percentile ranking of performance, relative to the national population.

Topic: Portfolio Manager, ENERGY STAR score calculation details, Technical reference
Resource Type: Technical documentation
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