Good morning and good afternoon! My name is Rob Van Der Like and I want to thank you for taking time to participate in this training. Kudret Utebay will be joining me as a co-presenter. We will spend about an hour and a half together today. Today’s training focuses on why you should rate the energy performance of your facilities using EPA’s energy performance rating system – Portfolio Manager – and how to do it. Please feel free to ask questions during the training. You can use the online comment process or just speak at the appropriate time. Don’t forget to unmute your phone if you ask a question.
EPA recognizes the need for a tool to measure the energy performance of buildings and plants. We are all familiar with the MPG sticker displayed on new cars. We’ve become accustomed to comparing a broad variety of automobiles regardless of makes and dealership based on their energy efficiency. Now, you can obtain a “Statement of Energy Performance” for your building or building portfolio by using the ENERGY STAR’s Portfolio Manager program. The SEP is analogous to the sticker that is placed in the window of a new car.
EPA’s energy performance rating system gives you the ability to compare the targeted energy use of your building design with the actual energy use of existing, operating buildings. EPA bases the system on the U.S. Department of Energy’s Commercial Building Energy Consumption Survey—or CBECS—a database of annual energy consumption for existing, occupied buildings. The survey is updated every four years, and it is calibrated to account for variables such as climate, building size, hours of operation, number of occupants, plug loads, and other factors. In addition, the rating is technology neutral: It neither rewards nor penalizes your technology choices. Your building design will be compared to those buildings in the CBECS survey that have similar building and operating characteristics, as well as similar climates. A rating of 50 indicates that the building, from an energy consumption standpoint, performs better than 50% of all similar buildings nationwide, while a rating of 75 indicates that the building performs better in the top quartile of all similar buildings nationwide. Also remember that Target Finder’s calculates the EPA rating based on source energy, not site energy. For electricity, the ratio of source energy to site energy is about 3 to 1. For comparison, the ratio of source to site energy for natural gas is about 1.1 to 1. So, the fuel mix has a strong impact on a project’s design rating and its corresponding site energy use intensity. If the building you are designing will use on-site renewable energy, you should not enter this into Target Finder. You should only enter the energy amount intended to be purchased from the power grid. You can use your rating to fulfill the requirements for Architecture 2030.
With Target Finder, you set energy use targets based on your building type. Target Finder provides ratings for 11 major building types, based on the national data from CBECS, which represents about 60 percent of the nation’s commercial building types. If the building you are designing is not eligible for a rating, refer to this table, which provides national averages for several more building types. Some of the broader building type categories are broken down into more specific building activities, and as you can see, some of the sub-categories can be measured in Target Finder.
The national rating system for ratable spaces is based on a sampling of 4,000 buildings of similar types nation-wide. The rating ranges from 1 to 100 and is similar to a percentile rating. In this graph you can see a distribution curve showing how the buildings in the sample were rated. The graph also shows the relationship between the rating and the “energy intensity” measured in kBtu/ft2-year. This data is “normalized” for the difference in temperatures of the various geographical areas and climate zones across the country – enabling an “apples to apples” comparison. It’s also interesting to note that the age of the building and the presence of newer and more efficient technologies are not significant predictors of energy intensity. As many new buildings and good technologies are among the top as they are in the bottom. What this signals to us is that there is a tremendous amount of waste in the market and that efficient technologies might not be performing or employed as intended.
Portfolio Manager completes EPA’s energy performance rating system. It enables you to work with your client to ensure that the building operates as efficiently as you intended it to.
So, let’s now go to Portfolio Manager and discuss its features and how to use it. It is easy to find it on the web by simply going to the ENERGY STAR web site and clicking on “Buildings & Plants.”
This is the ENERGY STAR Buildings and Plants page. I’m taking you to Portfolio Manager by way of this so you can see all the resources available to you. You will want to go back to this page later to explore what’s there.
The Portfolio Manager rating tool is set up to provide a national rating for several facility types – K-12 schools, large office buildings, medium size office buildings, hospitals, supermarkets, hotels, warehouses, college residence halls, courthouses, and financial centers. These are the space types that can receive a rating from 1 to 100. The term “ratable space” refers to these select facility types. Portfolio Manager can also be used to benchmark other space types, even though ratings are not yet available for those facilities.
Now, let’s talk about how to use the Portfolio Manager program. The first thing you want to do before you go to the web site is to collect some needed information so you will be prepared to enter the data that is required. This is the information you will need to establish your facility groups – building identification information, energy use data, and space data. In order to get a rating for a ratable space, you must input at least eleven months of data. Although it is not initially required, before you can submit for any of the Energy Star recognition programs, you have to verify that the facilities meet required energy codes and have good indoor air quality.
If some of your facilities rate well, then those facilities are eligible for recognition. However, even if they don’t, you have vital information that you can use to gain support for building renewal projects. For example, if you have a building that scores 25, it would be a good candidate for a retrofit project or at least further technical evaluation. You can relate the rating to building performance and operational costs. Having this kind of information (based on a national rating system) gives your case enhanced credibility with your administrators and decision makers.
ENERGY STAR Portfolio Manager and LEED: Bill Willis, West Virginia Division Of Energy
Energy Efficiency Program Coalfield Community Development ----- West Virginia Public Energy Authority Who We Are…
LEEDS and Benchmarking: Using Portfolio Manager (thanks to the U.S. EPA and Cadmus Group for the use of these slides )
Need for a Rating System for Buildings Fuel Efficiency MPG Is 60 MPG high or low for an automobile? Statement of Energy Performance EPA Rating Is 80 kBtu/SF/YR high or low for a building?
Benchmarking Allows Comparison With Similar Existing Buildings <ul><ul><li>Compares all of your buildings to similar buildings nationwide </li></ul></ul><ul><ul><li>Allows the setting of priorities to maximize use of staff time and/or investment capital </li></ul></ul>=
The EPA Energy Performance Rating Formula <ul><ul><li>Based on actual “whole-building” energy performance data </li></ul></ul><ul><ul><ul><li>DOE-CBECS </li></ul></ul></ul><ul><ul><li>Accounts for factors that affect energy use intensity </li></ul></ul><ul><ul><ul><li>Climate </li></ul></ul></ul><ul><ul><ul><li>Size (GSF) </li></ul></ul></ul><ul><ul><ul><li>Occupancy </li></ul></ul></ul><ul><ul><ul><li>Equipment </li></ul></ul></ul>
Energy Performance Age and Energy Gaps in Buildings 1 Worst Performers Best Performers Number of Buildings 25 50 75 90 Top performing buildings use 3 to 4 times less energy per ft 2 than the worst performers. Newer buildings are equally represented across all quartiles. Based on a sample of 4,000 buildings nationwide. 10 39 percent of buildings with a rating of 75 or better are less than 25 years old 42 percent of buildings with a rating between 25 and 74 are less than 25 years old 35 percent of buildings with a rating between 0 and 24 are less than 25 years old 121.1 29.9 165.7 86.0 339.4 EPA Performance Rating & Energy Intensity (kBtu/ft 2 -year)
Recognition Opportunities for Eligible Spaces <ul><li>Estimate Energy Use at Design </li></ul><ul><ul><li>Target Finder </li></ul></ul><ul><ul><li>Designed to Earn the ENERGY STAR </li></ul></ul><ul><li>Verify energy use in operation </li></ul><ul><ul><li>Portfolio Manager </li></ul></ul><ul><ul><li>ENERGY STAR for buildings </li></ul></ul><ul><ul><li>ENERGY STAR Leaders for Portfolio-Wide Improvements of 10 percent, 20 percent, 30 percent, or more </li></ul></ul>
Finding ENERGY STAR Tools <ul><li>Go to: </li></ul><ul><li>www.energystar.gov </li></ul>1. 2. Click on: Buildings and Plants
Finding ENERGY STAR Tools <ul><li>Click on: </li></ul><ul><li>“ Portfolio Manager” or “Target Finder” </li></ul>
What is Portfolio Manager ? <ul><li>Free online tool where you can: </li></ul><ul><ul><li>Benchmark the energy use of all of your buildings – all will receive an energy use intensity (EUI) and some will receive ratings on a 1-100 scale </li></ul></ul><ul><ul><li>Track changes in energy use over time in single buildings, groups of buildings, or entire portfolios </li></ul></ul><ul><ul><li>Track cost savings and CO 2 emissions </li></ul></ul><ul><ul><li>Apply for ENERGY STAR recognition </li></ul></ul><ul><ul><li>Track water usage </li></ul></ul>
Before You Start <ul><li>Collect Required Information </li></ul><ul><li>Building Identifiers </li></ul><ul><li>Name, street address, zip code for weather normalization </li></ul><ul><li>Energy Use </li></ul><ul><li>Bldg specific invoice information from all purchased energy </li></ul><ul><li>At least 11 consecutive months for each source </li></ul><ul><li>Space Type Data </li></ul><ul><li>Square footage, hours of operation, number of students, # of </li></ul><ul><li>PC’s, </li></ul><ul><li>Must Meet Codes and have good IAQ </li></ul><ul><li>ASHRAE 62, 90.1 </li></ul>
Once you have established an energy performance baseline rating, you are ready to set improvement goals and create an action plan. The guide below can help you interpret the ratings and determine appropriate next steps. Rating Interpretation ENERGY PERFORMANCE RATING Facilities in this range may reap significant savings from concentration on simple, low-cost measures, such as improved operations and maintenance practices. Equipment upgrades could yield additional savings. MAINTAIN INVEST These top performing facilities offer examples of best practices as well as opportunities to gain recognition. Continue to improve and maintain superior performance by focusing on operations and maintenance . Facilities in this range offer the greatest opportunity for financial and environmental improvement. Investing in new equipment and enhancing operational practices may have the greatest impact on your bottom line. 100 75 50 1 ADJUST
Using Portfolio Manager for LEED-EB <ul><li>The SEP can be generated for purposes such as LEED-EB certification process </li></ul><ul><li>What is used for the LEED-EB process: </li></ul><ul><ul><li>User selects time period of performance </li></ul></ul><ul><ul><li>Tool generates 1 page summary with energy use, cost, and emissions figures </li></ul></ul><ul><ul><li>Summary also included as second page when full SEP is generated to apply for the ENERGY STAR </li></ul></ul>
The ENERGY STAR Building Label Process Explore Opportunities To Improve Energy Efficiency <ul><li>Collect Building Data </li></ul><ul><li>Operating </li></ul><ul><li>Energy </li></ul><ul><li>Attributes </li></ul><ul><li>PE Verification of Indoor Environmental Quality </li></ul><ul><li>Thermal Comfort </li></ul><ul><li>IAQ Analysis </li></ul><ul><li>Lighting Levels </li></ul>Enter Benchmark Data Generate Statement of Energy Performance Submit Application for the ENERGY STAR Label Examine Results Score below 75 Score 75 or above
Bill Willis West Virginia Division of Energy 304-957-2074 [email_address] Questions?