SSC2011_Thomas Gentry PPT

853 views

Published on

Published in: Technology, Business
  • Be the first to comment

  • Be the first to like this

SSC2011_Thomas Gentry PPT

  1. 1. Solutions for Sustainable Communities:2011 Learning Conference on State & Local Housing Policy<br />SWIFT Low-income Weatherization:Reducing the Financing Burden<br />September 26, 2011<br />Washington DC <br />Prof Thomas Gentry AIA<br />Architecture <br />Prof Robert Cox PhD<br />Electrical & Computer Engineering<br />
  2. 2. Weatherization History<br />“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.”<br />Department of Energy<br />Source: US Department of Energy, http://www1.eere.energy.gov/wip/wap_history.html<br />
  3. 3. Weatherization History<br />“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.”<br />Department of Energy<br />Source: US Department of Energy, http://www1.eere.energy.gov/wip/weatherization_innovation.html<br />
  4. 4. SWIFT Program<br />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.<br />UNC Charlotte<br />
  5. 5. SWIFT Program<br />The weatherization portion is financed primarily by a forgivable loan program; but, SWIFT is structured to allow implementation with other commonly used funding sources.<br />Duke Energy Home Energy Loan Pool (HELP) is administered by the North Carolina Housing Finance Agency (NCHFA). <br />UNC Charlotte<br />
  6. 6. SWIFT Program<br />The weatherization portion is financed primarily by a forgivable loan program; but, SWIFT is structured to allow implementation with other commonly used funding sources.<br />The SWIFT Program reduces the financing burden of low-income weatherization by:<br />Reducing administrative costs;<br />Leveraging volunteer labor and discount pricing on materials; and<br />Using more cost effective measures to reduce energy consumption. <br />UNC Charlotte<br />
  7. 7. 1. Reducing Administrative Costs<br />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. <br />To reduce the cost of oversight:<br />Provide a trained crew chief and a comprehensive set of construction documents - drawings and specifications; and,<br />De-incentivize using too much material and material theft.<br />Pay a profitable mobilization-demobilization fee and limit material and equipment reimbursements to bare costs. <br />Base all work on verifiable unit pricing.<br />UNC Charlotte<br />
  8. 8. 2. Leveraged Labor<br />Habitat for Humanity is the primary source of leveraged resources – volunteer labor.<br />Habitat for Humanity<br />Habitat for Humanity<br />Cabarrus County<br />Eastern Connecticut State University student participants in 2010 Youth United<br />
  9. 9. 2. Leveraged Materials<br />Lowe’s Home Improvement Corporation is providing equipment and government pricing on all materials.<br />Lowe’s Home Improvement <br />Lowe’s<br />Corporate<br />Headquarters<br />Mooresville, NC<br />
  10. 10. 3. Cost Effective Measures<br />Weatherization<br />
  11. 11. 3. Cost Effective Measures<br />Weatherization<br /><ul><li>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.
  12. 12. The Seal & Insulate method of weatherization has reached these limits.</li></li></ul><li>Cost Effective Measures<br />Weatherization<br /><ul><li>Achieving further reductions in energy consumption requires the utilization of additional weatherization methods.</li></li></ul><li>3. Cost Effective Measures<br />Weatherization<br /><ul><li>BAS is too expensive for low-income weatherization programs.
  13. 13. The SIR (Savings to Investment Ratio) is too low. </li></li></ul><li>3. Cost Effective Measures<br />Weatherization<br /><ul><li>Teaching the owner how to use the measures implemented in their house to reduce their energy consumption – “commissioning” – is cost effective. </li></li></ul><li>Reducing Energy Consumption<br />Two of the active measures used in the SWIFT Program to reduce energy consumption that require commissioning (educating the owner) are:<br />Real time energy monitoring and performance modeling; and,<br />Offsetting cooling loads with passive-hybrid ventilation.<br />Energy<br />
  14. 14. Reducing Energy Consumption<br />TED (The Energy Detective) device provides real time energy monitoring.<br />SWIFT uses the device in a more robust manner.<br />Performance modeling compares the expected performance in NEAT (National Energy Audit Tool) against the real performance. <br />SIRs (Savings to Investment Ratios) are adjusted in NEAT to refine the prioritization of measures.<br />Energy<br />
  15. 15. Reducing Energy Consumption<br /><ul><li>Throughout much of the United States the opportunity exists to reduce cooling loads with passive-hybrid ventilation during the shoulder seasons.</li></ul>Energy<br /><ul><li>In North Carolina the shoulder seasons makeup a significant portion of the year.</li></ul>Psychrometric chart from Climate Consultant 5.0<br />
  16. 16. Reducing Energy Consumption<br /><ul><li>High quality whole house fans provide quite passive-hybrid ventilation, when used properly. </li></ul>Energy<br /><ul><li>To insure proper usage, the SWIFT Program teaches the owner on three separate occasions how to use the system.
  17. 17. Commissioning is an ongoing process. </li></ul>AirScape 1.0 WHF<br />
  18. 18. SWIFT & Sustainable Communities <br /><ul><li>The SWIFT Program is committed to weatherize 800 low-income houses in North Carolina by October 1, 2012.
  19. 19. To promote sustainable communities the program:</li></ul>Targets communities with housing stock that is viable for the next generation;<br />Selects houses in community clusters to improve the community as a whole; <br />Provides greater economic stability by reducing the energy burden of low-income households; and,<br />Creates locally supported jobs that will continue beyond the WIPP period.<br />North Carolina<br />
  20. 20. Environmental Benefits<br /><ul><li>The reduction in energy consumption realized through the SWIFT Program results in a direct reduction of greenhouse gas emissions associated with:</li></ul>The burning of coal to produce electricity for cooling and lighting; and,<br />The burning of natural gas for heating.<br />Global Impact <br />
  21. 21. Thank You<br />

×