ssc2011_thomas gentry ppt

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Professors Cox & Gentry University of North Carolina Charlotte SWIFT Program Prof Thomas Gentry AIA Architecture Prof Robert Cox PhD Electrical & Computer Engineering Solutions for Sustainable Communities: 2011 Learning Conference on State & Local Housing Policy SWIFT Low-income Weatherization: Reducing the Financing Burden September 26, 2011 Washington DC

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Page 1: SSC2011_Thomas Gentry PPT

Prof Thomas Gentry AIAArchitecture

Prof Robert Cox PhDElectrical & Computer Engineering

Solutions for Sustainable Communities:2011 Learning Conference on State & Local Housing Policy

SWIFT Low-income Weatherization:Reducing the Financing BurdenSeptember 26, 2011Washington DC

Page 2: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

Weatherization HistoryD

ep

art

men

t of

En

erg

y• “The Weatherization Assistance Program

[WAP] was created under Title IV of the Energy Conservation and Production Act of 1976. During a period of staggering increases in energy prices following the 1973 oil crisis, the program was designed to save imported oil and cut heating bills for low-income households, including senior citizens living on fixed incomes and Social Security, who were especially hard hit by rising energy bills.”

Source: US Department of Energy, http://www1.eere.energy.gov/wip/wap_history.html

Page 3: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

Weatherization HistoryD

ep

art

men

t of

En

erg

y• “The Weatherization Innovation Pilot Program

[WIPP] aims to accelerate innovations in whole-house weatherization for low-income families. A new program in 2010, these projects include new and nontraditional partners and weatherization service providers, leverage significant non-federal financial resources in addition to federal funds, and aim to improve the effectiveness of low-income weatherization through the use of new materials, technologies, behavior-change models, and processes.”

Source: US Department of Energy, http://www1.eere.energy.gov/wip/weatherization_innovation.html

Page 4: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

SWIFT ProgramU

NC

Charl

ott

e• The SWIFT (Streamlined Weatherization

Improvements for Tomorrow) Program under development by the University of North Carolina Charlotte is one of 16 Weatherization Innovation Pilot Programs.

Page 5: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

SWIFT ProgramU

NC

Charl

ott

e• The weatherization portion is financed

primarily by a forgivable loan program; but, SWIFT is structured to allow implementation with other commonly used funding sources.– Duke Energy Home Energy Loan Pool (HELP) is

administered by the North Carolina Housing Finance Agency (NCHFA).

Page 6: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

SWIFT ProgramU

NC

Charl

ott

e• The weatherization portion is financed

primarily by a forgivable loan program; but, SWIFT is structured to allow implementation with other commonly used funding sources.

• The SWIFT Program reduces the financing burden of low-income weatherization by:1. Reducing administrative costs;2. Leveraging volunteer labor and discount

pricing on materials; and3. Using more cost effective measures to

reduce energy consumption.

Page 7: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

1. Reducing Administrative Costs

UN

C C

harl

ott

e• A significant portion of the administrative

costs is for overseeing the work of the weatherization contractor to assure the work is done properly and to track materials.

• To reduce the cost of oversight:– Provide a trained crew chief and a

comprehensive set of construction documents - drawings and specifications; and,

– De-incentivize using too much material and material theft.• Pay a profitable mobilization-demobilization fee and

limit material and equipment reimbursements to bare costs.

• Base all work on verifiable unit pricing.

Page 8: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

2. Leveraged Labor

• Habitat for Humanity is the primary source of leveraged resources – volunteer labor.

Hab

itat

for

Hu

manit

y

Habitat for HumanityCabarrus County

Eastern Connecticut State University student

participants in 2010 Youth United

Page 9: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

2. Leveraged Materials

• Lowe’s Home Improvement Corporation is providing equipment and government pricing on all materials.

Low

e’s

Hom

e

Imp

rovem

en

t

Lowe’sCorporate

HeadquartersMooresville, NC

Page 10: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

3. Cost Effective Measures

Weatherize to Reduce Energy Consumption

Passive MethodBuilding and owner do not respond to

changes in the weather

Seal & Insulate

Traditional Method

Active MethodsBuilding and/or owner responds to

changes in the weather

Intelligent BuildingRequires an

automatic control system - Building

Automation System (BAS)

Intelligent OwnerRequires

educating owner on how to use

systems – “commissioning”

Weath

eri

zati

on

Page 11: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

3. Cost Effective Measures

Weatherize to Reduce Energy Consumption

Passive MethodBuilding and owner do not respond to

changes in the weather

Seal & Insulate

Traditional Method

Weath

eri

zati

on

• The amount of insulation that can be added and the air tightness that is safe to achieve are limited by existing building conditions and indoor air quality requirements.

• The Seal & Insulate method of weatherization has reached these limits.

Page 12: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

Cost Effective Measures

Weatherize to Reduce Energy Consumption

Passive MethodBuilding and owner do not respond to

changes in the weather

Seal & Insulate

Traditional Method

Weath

eri

zati

on

• Achieving further reductions in energy consumption requires the utilization of additional weatherization methods.

Page 13: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

3. Cost Effective Measures

Weatherize to Reduce Energy Consumption

Active MethodsBuilding and/or owner responds to

changes in the weather

Intelligent BuildingRequires an

automatic control system - Building

Automation System (BAS)

Weath

eri

zati

on

• BAS is too expensive for low-income weatherization programs.— The SIR

(Savings to Investment Ratio) is too low.

Page 14: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

3. Cost Effective Measures

Weatherize to Reduce Energy Consumption

Active MethodsBuilding and/or owner responds to

changes in the weather

Intelligent OwnerRequires

educating owner on how to use

systems – “commissioning”

Weath

eri

zati

on

• Teaching the owner how to use the measures implemented in their house to reduce their energy consumption – “commissioning” – is cost effective.

Page 15: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

Reducing Energy ConsumptionEn

erg

y• Two of the active measures used in the

SWIFT Program to reduce energy consumption that require commissioning (educating the owner) are:– Real time energy monitoring and performance

modeling; and,– Offsetting cooling loads with passive-hybrid

ventilation.

Page 16: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

Reducing Energy ConsumptionEn

erg

y• TED (The Energy Detective) device

provides real time energy monitoring.– SWIFT uses the device in a more robust

manner.

• Performance modeling compares the expected performance in NEAT (National Energy Audit Tool) against the real performance. – SIRs (Savings to Investment Ratios) are

adjusted in NEAT to refine the prioritization of measures.

Page 17: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

Reducing Energy ConsumptionEn

erg

y• Throughout much of the United States the

opportunity exists to reduce cooling loads with passive-hybrid ventilation during the shoulder seasons.

Psychrometric chart from Climate

Consultant 5.0

— In North Carolina the shoulder seasons makeup a significant portion of the year.

Page 18: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

Reducing Energy ConsumptionEn

erg

y• High quality whole house fans provide

quite passive-hybrid ventilation, when used properly.

AirScape 1.0 WHF

— To insure proper usage, the SWIFT Program teaches the owner on three separate occasions how to use the system.

— Commissioning is an ongoing process.

Page 19: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

SWIFT & Sustainable Communities

Nort

h C

aro

lina

• The SWIFT Program is committed to weatherize 800 low-income houses in North Carolina by October 1, 2012.

• To promote sustainable communities the program:– Targets communities with housing stock that

is viable for the next generation;– Selects houses in community clusters to

improve the community as a whole; – Provides greater economic stability by

reducing the energy burden of low-income households; and,

– Creates locally supported jobs that will continue beyond the WIPP period.

Page 20: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

Environmental BenefitsG

lobal Im

pact

• The reduction in energy consumption

realized through the SWIFT Program results in a direct reduction of greenhouse gas emissions associated with:• The burning of coal to produce electricity for

cooling and lighting; and,• The burning of natural gas for heating.

Page 21: SSC2011_Thomas Gentry PPT

Professors Cox & Gentry University of North Carolina

Charlotte SWIFT Program

Thank You