4th German-AmericanEnergy Efficiency Conference

December 6, 2011

Stephen V. Skalko, P.E.Chair – SSPC 90.1

ASHRAE Standard 90.1-2013

Aiming at 50% Energy SavingsFor 90.1-2013

Background on Standard 90.1- 2013The “Goals” for 2013Changes under considerationThe Future

ASHRAE Standard 90.1-2013

Timeline

1990

1970

1980

2000

2010

1975Std 90-75

1989Std 90.1-89

1999Std 90.1-99

2004Std 90.1-04

2007Std 90.1-07

1980Std 90A-80Std 90B-75

2001Std 90.1-99

Growing period Maturity period

ASHRAE Standard 90.1

Timeline

2010

1999Std 90.1-99

2004Std 90.1-04

2007Std 90.1-07

MILESTONES

1999 – Major rewrite,economic basis & CM

2001 – 3 Year cycles90.1 Work Plan – 30%energy cost savings Expand TPS

2001Std 90.1-04

30%

200630%

ASHRAE Standard 90.1

ASHRAE Standard 90.1

Section 1: PurposeSection 2: ScopeSection 3: Definitions

AbbreviationsSection 4: Admin. And

EnforcementSection 5: Building

EnvelopeSection 6: HVAC

Section 7: SWHSection 8: PowerSection 9: LightingSection 10: Elec. MotorsSection 11: ECB Section 12: ReferencesAppendices

Appendix C – EnvelopeAppendix G - ECB

Sections

ASHRAE SSPC 90.1

Standing Standard Project

CommitteeChair & VCs

Liaisons ExCom

ECBSubcommittee

CH 11App G

FORMAT & COMPLIANCESubcommittee

CH 4

LIGHTINGSubcommittee

CH 8, 9, 10

MECHANICALSubcommittee

CH 6, 7

ENVELOPE

CH 5App C

Subcommittee

ASHRAE Standard 90.1 Revision Process

Proposals Received by SSPC 90.1

Proposals Reviewed in

Subcommittee

Interested Parties

Engaged

Subcommittee Sends to

Full Committee

Proposal Issued for

Public Review

Public Comments

Received by SSPC 90.1

Public Draft Approved for Publication

Standards Committee and BOD Approval

New Standard or Addendum

PublishedBoard Appeals

ProcessSubstantive

Changes

ANSIApproval

ASHRAE Standard 90.1 Revision Goals

Technically justified

Simplicity

Flexibility

Enforceable

ASHRAE Standard 90.1

• ASHRAE Technology Committee - Ad-Hoc Committee on Energy Targets – June 2010

SSPC 90.1 responsible for our energy targetsStandard 90.1 IS NOT the foundation for meeting Vision 2020 or NZEBAEDGs are mechanism for NZEBPromote EUI as measurement

90.1-2010 – Major Step

• Expand to new areas• Commercial/industrial equipment/processes

• Identify & engage stakeholders

Title, Purpose & Scope change

TimelineMILESTONES

90.1-10 Work Plan – 30%

90.1-13 Work Plan – 50% on regulated end use loads

90.1-13 Work Plan – 40% whole building (all end uses)

90.1-13 Work Plan – EUI

90.1-13 Work Plan – AlternatePerformance Methodology (APM)

ASHRAE Standard 90.1-2013

2004Std 90.1-04

2010Std 90.1-10

2013Std 90.1-13

2007Std 90.1-07 Fu

ture

30%

50%

40%

APM

ASHRAE Standard 90.1

Since July 1, 2010

• 2010 Users Manual• 32 New Addenda in

process• 4 from previous cycle

ASHRAE Standard 90.1In Progress

• Building envelope (Addendum “bb” – 4th PR)

• Door leakage• Cool Roof standards• Dynamic glazing &

fenestration labeling

ENVELOPE

• Escalator controls• Elevator lighting• LPD revisions• Electric motors• Electrical Metering• Branch circuit controls

LIGHTING

ASHRAE Standard 90.1In Progress

• Commercial refrigeration• Heat pump efficiencies• SPVAC & SPVHP efficiencies• Transformer testing• Damper leakage

MECHANICAL

ASHRAE Standard 90.1In Progress

•Fan efficiencies –Advisory Public Review (APR)• Engaged interested parties• Set min Fan Efficiency Grade (FEG) > 67• Based on AMCA 205-10

• Covers fan motor ratings > 1/6 hp• Does not cover fan systems

• Addendum excludes• Fans with bhp < 5• Fans covered by 6.4.1.1

MECHANICAL

ASHRAE Standard 90.1In Progress

• Cooling Towers• Laboratory Exhaust• Building Orientation• Fenestration• Temp & Humid Schds• Computer room criteria

(Addendum cj - 3rd PR)

Energy Cost Budget

ASHRAE Standard 90.1In Progress

• Site-recovered & Site-generated energy credit allowed• Not considered “purchased energy”• Deducted from “proposed design” energy consumption• Credit < 5% for calculated energy cost budget

Energy Cost Budget - Renewables

ASHRAE Standard 90.1In Progress

Data Centers Continuous Maintenance Proposal (CMP)

ASHRAE Standard 90.1Under Discussion

PUE = Total Energy @ Meter ÷ Peak IT Equipment Energy

ASHRAE Standard 90.1Under Discussion

Continuous Maintenance Proposal (CMP)

ASHRAE Standard 90.1Under Discussion

Other Continuous Maintenance Proposals (CMPs)

• Systems testing personnel limitations

• Economizer revisions

• Luminaire limitations

• Definition of cooling design temperature

• Revisions to evaluate systems with Appendix G

ASHRAE Standard 90.1Under Discussion

Other Informal Concepts

• Revisions to single & multi-zone VAV systems

• PTUHP and DX equipment revisions

• Occupancy controls for dedicated HVAC system

• Energy recovery systems enhancements

• Energy recovery for space heating

• Cooling tower controls and efficiency

90.1-2010 – 2013 & Future

• Wholistic systems designs• Systems Design and

subsystems effects

90.1-2010 – Future

• Alternate Performance MethodologiesDetermine “base minimum” using whole building designsExplore regional utility ratesExplore time/demand ratesConsider water use and ratesExplore criteria metrics other than cost savings (e.g. system efficiencies)Address renewables (site based & grid based)Use AEDG format for the 90.1 standard

90.1– Moving Forward

Input Needed – Ideas WelcomeDesigners

Equipment & Material interests

Code Officials

the list goes on ……… Come join the fun!

Stephen V. Skalko, PE,478‐477‐5028svskalko@cox.net