2011-december-eeg-eb-ti-doe-briefing-final.pdf

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Energy Efficiency Guide for Existing Commercial Buildings: Technical Implementation Executive Summary Briefing December 12, 2011 Bert Etheredge, ASHRAE Lilas K. Pratt, ASHRAE Dennis Landsberg, Lead Author 1

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  • Energy Efficiency Guide

    for

    Existing Commercial Buildings:

    Technical Implementation

    Executive Summary Briefing

    December 12, 2011

    Bert Etheredge, ASHRAE

    Lilas K. Pratt, ASHRAE

    Dennis Landsberg, Lead Author

    1

  • Acknowledgements

    Support from DOE is greatly appreciated

    EEG-EB: Technical Implementation

    George Jackins, Chair

    2

  • Development Steering Committee with 4 Partner

    Organizations

    PMC also includes BOMA and GSA

    Cooperation with & Funding from DOE

    Through Contract with PNNL

    Oversight by Project Monitoring Committee

    One Peer Review

    Educational Guidance not a Standard

    3

  • Project Monitoring Committee

    George Jackins(PNNL), Chair

    Tom Watson, ASHRAE Representative

    Ron Burton, BOMA Representative

    Kinga Porst, GSA Representative

    Rita Harrold, IES Representative

    Brendan Owens, USGBC Representative

    Adrienne Tholme, TC 7.6 Representative

    Harry Misuriello, TC 7.6 Representative

    Gordon Holness, Member at Large

    Jim Bochat, Member at Large

    Bruce Hunn, Member at Large

    4

  • EEG-EB

    5

  • Target Audience

    Target market is building engineers and

    facility managers with a working

    knowledge of building systems.

    Assumes higher level of technical

    expertise than first guide.

    6

  • Scope

    Achieve at least 30% savings using multiple

    targets.

    Includes commercial, high-rise, residential

    buildings of any age or condition

    Provide how to approaches that result in efficient and high quality spaces.

    Provide technical guidance for upgrades, retrofits

    and renovations.

    Provide methods of determining payback energy

    efficient measures including Life-cycle costing.

    7

  • Chapter Organization

    Introduction

    General Considerations

    Measuring Energy Performance and Setting Goals

    Understanding Energy Use and End-Use/System Energy

    Selecting Energy Efficiency Measures

    Refining Financial Analysis and Setting Priorities

    Putting the Process Together

    8

  • 1 Introduction

    Energy Efficiency Process

    9

  • 2 General Considerations

    Leveraging building systems life cycle

    Conservation potential

    Property ownership types

    Utility rate structures pricing signals Utility/government incentives

    Small vs large buildings

    Outside resources vs in-house staff

    10

  • 3 Measuring Energy

    Performance and Setting Goals

    11

  • 3 Measuring Energy

    Performance and Setting Goals

    12

  • 3 Measuring Energy

    Performance and Setting Goals

    Improve building EUI by a percentage

    Improve building EUI with respect to peer buildings

    Meet current energy efficiency codes

    Exceed current energy efficiency codes by a percentage

    Non-energy goals such as reduced carbon footprint

    13

  • 4 Understanding Energy Use

    and End-Use/System Energy

    14

  • 4 Understanding Energy Use

    and End-Use/System Energy

    Value of end-use data in evaluating system efficiency and targeting EEMs

    Discussion of CBECS data

    End-use measurement procedures

    Measurement complexity vs cost

    15

  • 4 Understanding Energy Use

    and End-Use/System Energy

    16

  • 4 Understanding Energy Use

    and End-Use/System Energy

    17

  • 5 Selecting Energy Efficiency

    Measures

    18

  • 5 Selecting Energy Efficiency

    Measures

    Utility/fuel supply

    Operations

    Building envelope

    HVAC Equipment

    HVAC Distribution

    Water Heating

    Lighting

    Motors

    Controls

    Overall Performance

    Considerations include:

    19

  • 6 Refining Financial Analysis

    and Setting Priorities Topics:

    Simple payback period

    Life cycle costing

    Internal rate of return vs Minimum acceptable rate of return

    Cost of conserved energy

    Life expectancy of measures

    Maintenance costs

    Measure prioritization

    20

  • 7 Putting the Process Together

    Topics:

    Full renovation decision

    Managing process steps

    Financing strategies

    Factors influencing implementation timing

    Defining and reporting success

    21

  • Distribution/Promotion

    Distribution

    Print 1,041

    Digital 248

    Promotion

    Advertising on ASHRAE Website

    News Release

    Informative Bulletin to purchasers of related material.

    22

  • Availability

    Both Guides Available on the ASHRAE

    Website http://www.ashrae.org/publications/page/eeg2

    23

  • Questions & Answers

    Bert Etheredge: [email protected]

    Lilas Pratt: [email protected]

    Dennis Landsberg: [email protected]

    24