Introduction to Commercial Building Energy Efficiency through EPA s

Introduction to Commercial Building Energy Efficiency through EPA’s ENERGY STAR program Week 4: Benchmarking Buildings and Prioritizing Improvements within a Portfolio of Buildings

Outline • Class Objectives • ENERGY STAR for Commercial Buildings— Benchmarking Buildings and Prioritizing Improvements within a Portfolio of Buildings – – – ENERGY STAR Energy Management Tools Benchmarking with Portfolio Manager Live Demonstration Benchmarking a Portfolio of Buildings Building Upgrade Manual Getting Started on Your Commercial Project Building

Class Objectives After today’s lecture, you will be able to: • Benchmark the energy use of a building using monthly energy bills and other required building data • Analyze and explain the benchmarking results to others in the class (and possibly the building owner/manager) using data from Portfolio Manager • Generate a Statement of Energy Performance and a Data Checklist from Portfolio Manager for a building and review the data to confirm its accuracy • Explain how to identify priority projects with a portfolio of buildings

ENERGY STAR Energy Management Tools

ENERGY STAR Resources Guidelines for Energy Management • • STEP 1: Commit to Continuous Improvement STEP 2: Assess Performance STEP 3: Set Goals STEP 4: Create Action Plan STEP 5: Implement Action Plan STEP 6: Evaluate Progress STEP 7: Recognize Achievements http: //www. energystar. gov/buildings

ENERGY STAR Resources • Building Upgrade Manual Plan and implement profitable energy saving building upgrades utilizing five stages: – – – Retrocommissioning Lighting upgrade Load reductions Air distribution systems upgrade HVAC upgrade • Cash Flow Opportunity (CFO) Calculator Helps answer three critical questions about efficiency projects: – How much new energy efficiency equipment can be purchased from the anticipated savings? – Should this equipment purchase be financed now or is it better to wait and use cash from a future budget? – Is money being lost by waiting for a lower interest rate?

Benchmarking with Portfolio Manager

Benchmarking • Benchmarking through ENERGY STAR allows you to: – Compare one building against a national sample of similar buildings – Compare all of your buildings of a similar type to each other – Set priorities for use of limited staff time and/or investment capital

Benchmarking Portfolio Manager • Benchmark the energy use of all buildings –receive an energy use intensity (EUI). Many buildings, including office buildings can receive energy performance ratings on a 1 -100 scale. • Track changes in energy and water use over time in single buildings, groups of buildings, or entire portfolios. • Track and report cost savings and CO 2 emissions. • Apply for the ENERGY STAR. • www. energystar. gov/benchmark

ENERGY STAR Score Eligible Building Types Bank/Financial Institutions Hotels Courthouses Data Centers Houses of Worship K-12 Schools Retail Stores Supermarkets Dormitories Medical Offices Warehouses Hospitals Office Buildings Wastewater Treatment Plants

Examples of Non-Ratable Space Types • • • Police Stations Fire Stations Assisted Living Facilities Convention Centers Laboratories Libraries Malls Movie Theatres Restaurants Stadiums and Arenas

Portfolio Manager Four Simple Steps 1. Create/edit a Portfolio Manager account 2. Add/edit a property 3. Add/edit a space 4. Add/edit energy meters

Required Information for Benchmarking in Portfolio Manager • Building Identifiers – Name, street address, zip code for weather normalization • Space Type Data (office example) – Square footage, hours of operation, Number of workers on main shift , # of PC’s, Percent of gross floor area that is air conditioned, heated • Energy Use – Bldg specific invoice information from all purchased energy. Begin with at least 11 consecutive months for each source and update with monthly usage data.

Energy Use: How to Read a Utility Bill

Assess Performance for Smart Energy Management Establish Baseline Set Goals Track & Measure Overtime • Verify gains from upgrade efforts • Require specific rating gains from service providers in select building types such as office or warehouse

Identify Best Opportunities for Energy Efficiency Improvements • Identify under-performing buildings to target for energy efficiency improvements • Establish baselines to set goals and measure progress

Track Progress Over Time • Set a custom baseline and monitor energy efficiency improvements before, during, and after an upgrade project • View percent improvement in weather-normalized energy use intensity • Track reductions in greenhouse gas emissions • Monitor energy and water costs

Document Savings Results • Provide transparency and accountability to help demonstrategic use of capital improvement funding • Quickly and accurately demonstrate savings for an individual building or entire portfolio: – Energy use – GHG emissions – Water use – Energy costs • Download performance metrics from Portfolio Manager into Excel • Generate a Statement of Energy Performance (SEP) for each building, summarizing important performance indicators, including energy intensity and CO 2 emissions • Generate an Energy Performance Report showing reductions in key indicators over a user-specified time period Visit www. energystar. gov/benchmark to get started

Live Demonstration

Live Demo Benchmarking a Sample Commercial Building using Portfolio Manager Øhttps: //www. energystar. gov/benchmark/

Access Portfolio Manager Web Page (1) (2) (3) Click BUILDINGS & PLANTS on the ENERGY STAR home page. Click the Portfolio Manager link to login or create a new account (1) (2) Click Portfolio Manager to read more about the rating system. (3)

Creating an Account

Adding a Property

Add/Edit Adding a Space

Adding a Space

Adding Energy Meters

Entering Energy Use

Example

Statement of Energy Performance • Objective: The SEP can be generated for purposes other than applying for the ENERGY STAR • LEED-EB certification process • Real estate transactions • Maintaining a Facility Summary Report • Process: • User selects time period of performance • Tool generates summary with energy use, cost, and emissions figures

Generating an SEP

Generating an SEP Building Information Energy Performance Verification of Indoor Air Quality

Benchmarking a Portfolio of Buildings

Downloading Import Templates (1) Click the Import Facility Data link, and on the next screen, right click on the desired template link. Select “Save Target As, ” and follow the instructions. (1)

Import Template Overview Be sure to populate the User, Facilities, Primary Space, and Energy Use tabs with the required data. Additional tabs are included for instructions and secondary space types (if any). NOTE: The following is an example of how to use the import template. While this example shows you how to import data for an office space (general or courthouse) into the Portfolio Manager, the process is similar for other space types. In the User tab, enter your login name, indicate user contact information, and respond to optional questions for EPA tracking purposes. Use the Facilities, Space, Energy Use, and Water Use tabs to fill in the required data. For additional space types, fill in fields for Parking Space, Data Center Space, and Swimming Pool (if available). Read the Instructions and Import Tips tabs for information on the import process and data requirements. To import the data into Portfolio Manager, e-mail the completed template to buildings@energystar. gov

Populating and Importing Data from Import Template Populate data fields with basic facility information (Facilities tab) Space Use information (Office Space tab)

Populating and Importing Data from Import Template Energy Use data needed in Portfolio Manager (Energy Use tab)

How to Access Portfolio Manager • Single Building Manual Entry • Enter building and energy consumption information into Portfolio Manager. • Bulk Data Upload • Upload large sets of building data in Portfolio Manager using an Excel template. • Automated Benchmarking Services • • Use Service and Product Provider to have the rating automatically integrated into your energy information and bill handling system Utility-based Automated Benchmarking • • Option 1: Provide utility data Option 2: Provide automated benchmarking services

Rating Interpretation Once an energy performance baseline rating is established, the next steps are to set improvement goals and create an action plan. The guide below can help you interpret the ratings and determine appropriate next steps. MAINTAIN ADJUST INVEST 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. 1 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. 50 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. 75 ENERGY PERFORMANCE RATING 100

Building Upgrade Manual

Building Upgrade Manual • Assists organizations in planning and implementing profitable upgrades – Outlines process for developing comprehensive energy-management strategy and integrated approach to upgrading existing buildings

Contents • Managing and Planning Upgrade Projects – – Chapter 1: Introduction Chapter 2: Benchmarking Chapter 3: Investment Analysis Chapter 4: Financing • 5 -Staged Approach to Upgrade Projects – – – Chapter 5: Retrocommissioning Chapter 6: Lighting Chapter 7: Supplemental Loads Chapter 8: Air Distribution Systems Chapter 9: Heating and Cooling • Unique Facility Types – – Chapter 10: K-12 Schools Chapter 11: Supermarkets and Grocery Stores Chapter 12: Hotels and Motels Chapter 13: Retail Stores

Managing Upgrade Project • Strategies that contribute to the success of any major business undertaking should be applied to building upgrades – Benchmarking (Portfolio Manager) – Investment Analysis – Financing

Building Upgrade Manual • Includes a five-stage approach that increases financial and environmental benefits realized 1. 2. 3. 4. 5. Retrocommissioning Lighting Upgrade Supplemental Load Reductions Air Distribution Systems Upgrade HVAC Upgrade

Building Upgrade Manual

Retrocommissioning • • Calibrate building controls Adjust operating schedules Check steam traps Clean heat exchanger tubes in condenser, evaporator, and boiler • Check filters, dampers, coils, and balance of HVAC system

Lighting • Maximizing daylight • Quantity and quality of illumination • T 8 s and electronic ballasts • CFLs • Partial output ballasts • ENERGY STAR qualified light emitting diode (LED) exit signs • Exterior lighting – High-pressure sodium (HPS) – Low-pressure sodium (LPS) – Metal halide (MH) • Controls – – Occupancy sensors Dimming Daylight dimming/switching High-intensity discharge (HID) bi-level switching Courtesy: E SOURCE Lighting Technology Atlas (2005)

Supplemental Load Reductions • Envelope improvements – – Wall and roof Insulation Window upgrades Infiltration control Roof upgrades • Purchase ENERGY STAR qualified products Courtesy: E SOURCE; adopted from EPA

Air Distribution Systems • Right-size fan system • Use variable-speed drives • Consider improved controls • Use energy-efficient motors and belts • Maintain and clean filters properly

Heating And Cooling (H&C) Upgrades • Measure H&C loads • Right size H&C systems • Evaluate chiller upgrades /replacements • Use high-efficiency components • Purchase ENERGY STAR qualified ACs, ground-source closed-loop heat pumps Courtesy: E SOURCE; Adopted from EPA

Getting Started on Your Commercial Project Building

Benchmarking Starter Kit Portfolio Manager Data Collection Sheet Portfolio Manager Quick Reference Guide Animated Portfolio Manager Training

Animated Portfolio Manager Training http: //www. energystar. gov/ia/business/benchmarking_training/benchmarking. html

Student Project Overview

Student Project • Tour a building with a professional to learn 1 st hand how to identify energy efficiency opportunities; • Identify and seek permission to benchmark a building in the community; • Gather energy bill data and building attributes needed to benchmark; • Schedule a visit to the building to walk through the building to confirm building attributes visually and gain a thorough understanding about how the building is operating; • Discuss findings in class and brainstorm solutions to cost-effectively increase energy efficiency; • Research and refine energy efficiency opportunities; • Write a brief report using the benchmarking results, information learned from visiting the building, and researched solutions; and • Present the reported recommendations to the class using a visual presentation medium such as a slide or video presentation.

Review

Review Questions 1. Set up a Portfolio Manager account. 2. Using sample office building data, add an office building into your Portfolio Manager account. Name your demonstration building using your own last name (ex. Smith Building) 3. Share your building with professor's Portfolio Manager account (Professor's PM acct user name is: [insert user name]) 4. Generate a Statement of Energy Performance and Data checklist. Hand in to your professor.

Up Next: Week 5 • Determining Financial Value and Funding Methods for Building Energy Efficiency Improvements – Making the Financial Case – Investment Analysis – Cash Flow Opportunity Calculator – Building Upgrade Value Calculator