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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

2018 ENERGY STAR metric updates: All webinar recordings

Last Updated: 01-21-2021

The slides and recordings of completed webinars related to the 2018 ENERGY STAR metric updates are listed below.

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

A New Benchmark of Energy Performance for Energy Management in U.S. and Canadian Integrated Steel Plants

Last Updated: 01-18-2021

This paper reports on the work of EPA and the integrated steel industry to develop an Energy Performance Indicator (EPI) for integrated mills that develop and manufacture steel in the United States. The paper describes the data and statistical methods used to construct the EPI for evaluating the energy performance of integrated steel mills in the U.S. and Canada. 

Topic: Energy performance indicators (EPIs), Technical reference
Resource Type: Technical documentation, Industrial program & policy reports
Market Sector: Iron & steel manufacturing

Development of ENERGY STAR Energy Performance Indicators for Metal Casters

Last Updated: 01-18-2021

This report describes the data and statistical methods used to construct the Energy Performance Indicator (EPI) for metal casting plants. It also explains how the EPIs were developed to provide a plant-level indicator of energy efficiency by working with the metal casting industry. This report is useful if you would like background information on how EPA's ENERGY STAR metal casting plant EPIs were developed. The report presents the individual equations used to develop the EPIs.

Topic: Energy management guidance, Benchmarking, Technical reference
Resource Type: Technical documentation, Industrial program & policy reports
Market Sector: Metalcasting

Development of the Powertrain Energy Performance Indicators

Last Updated: 01-18-2021

This report describes the data and statistical methods used to construct the Energy Performance Indicators (EPIs) for automobile powertrain (engine & transmission) plants. It reviews how the EPIs were developed to provide plant-level indicators of energy performance by working with the motor vehicle  industry. The report also presents the individual equations used in the EPI.

Topic: Energy performance indicators (EPIs), Technical reference
Resource Type: Technical documentation
Market Sector: Motor vehicle manufacturing

Development of ENERGY STAR EPI for Fluid Milk Processing

Last Updated: 01-18-2021

This report describes the data and statistical methods used to construct the Energy Performance Indicators (EPIs) for fluid milk processing plants. It reviews how the EPIs were developed to provide plant-level indicators of energy performance by working with the dairy industry. The report also presents the individual equations used in the EPI.

Topic: Energy management guidance, Benchmarking, Energy performance indicators (EPIs), Technical reference
Resource Type: Technical documentation
Market Sector: Dairy processing

Development of ENERGY STAR Energy Performance Indicator for Integrated Steel Mills

Last Updated: 01-18-2021

This report describes the data and statistical methods used to construct the Energy Performance Indicator (EPI) for integrated steel mills. It also explains how the EPI was developed to provide a plant-level indicator of energy efficiency by working with the steel industry. This report is useful if you would like background information on how EPA's ENERGY STAR Integrated Steel Mill EPI was developed. The report presents the individual equations used to develop the EPI.

Topic: Guides, Technical reference
Resource Type: Technical documentation
Market Sector: Iron & steel manufacturing
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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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