Updates to ENERGY STAR® metrics with new market data

This page includes information about upcoming updates to 1-100 ENERGY STAR scores for U.S. property types, models being explored or developed, and past updates. Please check back regularly for the latest updates:

Note: For information about updates to Canadian score models, please visit Natural Resources Canada (NRCan’s) ENERGY STAR for Buildings page or contact nrcan.buildings-batiments.rncan@canada.ca.

1-100 ENERGY STAR score for U.S. hospitals to be updated on Feb. 22, 2021

The 1-100 ENERGY STAR score for U.S. hospitals is being updated to reflect new market data from 2015 collected by the American Society for Health Care Engineering (replacing the prior data from 2008). While the score change for each hospital will depend on a number of factors unique to that property, the average score change for U.S. hospitals in Portfolio Manager will be an increase of 1.4 points, and ~95% of hospitals will experience score changes ranging from -2 to +5 points.

When the updates take place, they will apply to all historical calculations in Portfolio Manager, so if you wish to document your pre-update scores, you should do so no later than Feb. 20. (Note that Portfolio Manager will be unavailable on Feb. 21 while EPA conducts the software release so plan to save reports before this date.) Otherwise, you do not need to input any additional information for your updated score to be calculated. When you first log in to Portfolio Manager on or after Feb 22, you will see the updated scores for your properties, which reflect a comparison to other hospitals using the most recent industry data available.

What changes can I expect?

The average score change for U.S. hospitals in Portfolio Manager is an increase of 1.4 points, and ~95% of hospitals will experience score changes ranging from -2 to +5 points. The chart below shows the full distribution of expected score changes.

The chart shows the full distribution of expected score changes.


The primary change with this update is the addition of heating degree days (HDD) to the scoring model. Users will not need to input any additional information, as Portfolio Manager will automatically calculate this value based on the hospital’s address. This approach was found to more accurately score buildings across the full range of building heating requirements.

Model Term Current Hospital Model
(Based on 2008 ASHE)
New Hospital Model
(Based on 2016 ASHE)
Full-time equivalent workers per 1,000 ft2
Green check mark
Green check mark
Staffed Beds per 1,000 ft2
Green check mark
Green check mark
MRI Machines per 1,000 ft2
Green check mark
Green check mark
Cooling Degree Days (CDD)
Green check mark
Green check mark
Heating Degree Days (CDD)
Red X mark
Green check mark

What should I do to prepare?

You should consider doing the following no later than February 20, 2021:

  1. Documenting pre-update ENERGY STAR scores. All scores, including all historical scores, are updated each time EPA updates the models behind the 1-100 ENERGY STAR scores. After each score update, your previous scores are no longer accessible in Portfolio Manager. Therefore, if you wish to document your pre-update ENERGY STAR scores, you should do so no later than February 20, 2021.

    To document pre-update scores, use Portfolio Manager to run a “Performance Highlights” standard report or create a custom report no later than February 20, then download and save those reports. Note that Portfolio Manager will be unavailable on February 21, 2021, while EPA conducts the software release so plan to save reports before this date.
     
  2. Applying for ENERGY STAR certification. If your score is close to 75, consider applying for ENERGY STAR certification prior to the update. Note that EPA will not rescind prior ENERGY STAR certifications for properties whose score drops below 75 as a result of the update.

Why is the ENERGY STAR score for U.S. hospitals being updated?

The primary goal of the score update is to provide a more timely comparison for hospital operators while also working to limit possible market disruption caused by any changes.

The current model compares today’s hospitals’ energy use and operations against a 2008 dataset from the American Society for Health Care Engineering (ASHE). ASHE conducted a more recent survey to determine whether hospitals are now using more or less energy and if the relationship between energy use and business activities, weather, or climate has changed.

This update will provide a comparison, based on 2015 data.

Recorded webinar and presentation

For full details, see below, or view the recording of the ENERGY STAR Hospital Model Update webinar (hosted on Jan. 19, 2021). You can also download the webinar slides.

1-100 ENERGY STAR score for U.S. medical office buildings tentatively set to be updated in August 2021

Medical BuildingEPA is in the process of analyzing survey data and developing an updated 1-100 ENERGY STAR score for U.S. medical office buildings. The goal of the score update will be to provide a more timely comparison for building operators and to reinstate ENERGY STAR certification for medical office buildings.

The current model compares today’s hospitals’ energy use and operations against the 1999 Commercial Building Energy Consumption Survey (CBECS) dataset. Due to the age of this model, EPA made the decision to suspend certification for medical office buildings effective on January 1, 2014. This update will provide a comparison based on 2015 data collected by the American Society for Health Care Engineering (ASHE).

The update is tentatively scheduled to take place in August 2021, but as work is still ongoing to analyze the data and develop an updated scoring model, there remains a chance that the update could be delayed. EPA will provide further updates in the coming months, and will hold a webinar to share details of the updated model prior to its release.

Data collection underway to develop a 1-100 ENERGY STAR score for U.S. convenience stores

Represented by the National Association of Convenience Stores (NACS), the U.S. convenience store industry includes about 152,720 retail stores, owned by about 1,500 retailers, and is serviced by about 1,600 suppliers. NACS is conducting a survey to gather data on the energy use and operations of convenience stores and intends to share the data collected with EPA. EPA will then analyze the data to determine if a new 1-100 ENERGY STAR score and certification can be developed for convenience stores. The NACS data collection survey is expected to be completed sometime in the spring of 2021, followed by analysis to determine if a new score can be developed based on survey responses.

Data collection planned for U.S. vehicle dealerships

Represented by the National Automobile Dealers Association (NADA), the U.S. vehicle dealership industry includes some 16,500 new car and truck dealerships with 32,500 brand franchises. NADA plans to undertake a data collection effort during the spring and summer of 2021. If sufficient data is collected, NADA will provide that data to EPA for analysis and to determine if a new 1-100 ENERGY STAR score and certification can be developed for U.S. vehicle dealerships.

2018 updates to ENERGY STAR® metrics

In August 2018, EPA updated performance metrics for U.S. buildings in ENERGY STAR Portfolio Manager® based on the most recent market data available. This update is part of EPA’s standard process to keep ENERGY STAR metrics as current as possible, and reflective of current market performance. At this time, the 1–100 ENERGY STAR scores and other source energy metrics for were updated for U.S. buildings benchmarking in Portfolio Manager across all time periods to reflect the latest performance metrics.

This update was followed by a score review period for U.S. K-12 schools, worship facilities, warehouse properties, hotels, offices, retail stores, and supermarkets, during which EPA engaged industry to get feedback, conduct additional analysis, and ensure the score models deliver metrics that support organizations' energy efficiency goals. Certification was temporarily suspended and resumed on a rolling basis as EPA finalized its analysis for each score model. In July 2019, EPA concluded the score review period and certification resumed for all eligible U.S. building types.

Note that none of these changes impacted Canadian buildings.

Details about EPA’s analysis and key findings for each of the models are available for download:

Read frequently asked questions

EPA has a dedicated section of frequently asked questions about the 2018 metric updates in the ENERGY STAR Buildings help desk. If your question is not among the FAQs, submit a question by clicking the “Ask a Question” tab. 

List of 1-100 ENERGY STAR scores and technical details

The table below provides a quick overview of 1–100 ENERGY STAR scores that were updated, a link to the technical reference, a link to the technical webinar, if available, and data source summary.

Space Type

Link to Slides and Webinar Recording

New Use Details Added in August 2018?

Release Date(s)

Source of Data

Collection Date(s)

Hotel

August 2017: Updated 1-100 ENERGY STAR Score for Hotels (PDF, 5.6 MB)

Listen to the recorded webinar here.

No

*2018

2009

2002

CBECS

CBECS

Industry Survey

2012

2003

1999

K-12 School

April 2017: K-12 School: Progress of ENERGY STAR Score Update (PDF, 1.0 MB)

Listen to the recorded webinar here.

Number of workers on main shift (Existed previously, but now required)

*2018

2009

2004

2000

CBECS

CBECS

CBECS

CBECS

2012

2003

1999

1995

Office (including financial office, bank branch, and courthouse)

Listen to the recorded webinar here.

May 2016: Office ENERGY STAR Score Update Plans (PDF, 253 KB) Listen to the recorded webinar here.

No

**2019

*2018

2007

2004

1999

CBECS

CBECS

CBECS

CBECS

CBECS

2012

2012

2003

1999

1995

Retail (including retail store and wholesale club/ supercenter)

May 2016: Retail ENERGY STAR Score Update Plans (PDF, 222 KB)


Listen to the recorded webinar here.

No

*2018

2007

CBECS

CBECS

2012

2003

Supermarket

May 2016: Retail ENERGY STAR Score Update Plans (PDF, 222 KB)

Listen to the recorded webinar here.

Number of Open or Closed Refrigeration/ Freezer Units (Existed previously, but now required)

*2018

2008

2001

CBECS

CBECS

CBECS

2012

1999 & 2003

1992 & 1995

Warehouse (including refrigerated, non-refrigerated, and distribution centers)

January 2018: Updated 1-100 ENERGY STAR Score for Warehouses (PDF, 1.9 MB)

Listen to the recorded webinar here.

Percentage of gross floor area used for cold storage (New as of August)

Percent that can be cooled and Percent that can be heated (refrigerated warehouse)

(New as of August)

*2018

2009

2004

CBECS

CBECS

CBECS

2012

2003

1999

Worship Facility

January 2018: Updated 1-100 ENERGY STAR Score for Worship Facilities (PDF, 1.3 MB)

Listen to the recorded webinar here.

Gross floor area used for food preparation (New as of August)

Percent that can be cooled and Percent that can be heated

(New as of August)

*2018

2009

CBECS

CBECS

2012

2003

*Implemented August 26, 2018.

**Implemented July 22, 2019

For slides and recordings of all webinars related to the 2018 metric updates that have been held since planning began in 2014, visit 2018 ENERGY STAR metric updates: All webinar recordings.

ENERGY STAR Tenant Space

Live webinars

Visit the ENERGY STAR training portal to register for a no-cost webinar about the upcoming ENERGY STAR metric updates or an “Ask the Expert” session.  

Frequently asked questions

Visit the ENERGY STAR Buildings help desk to read FAQs about the upcoming updates to ENERGY STAR metrics or to submit a question.

What is the 1-100 ENERGY STAR score and certification for buildings?