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Multifamily Air Sealing Program

Multifamily Air Sealing Program. Bobbi Wilhelm/John Forde. Implementation & Evaluation protocols. March 20, 2013. Team Introductions. Puget Sound Energy: Bobbi Wilhelm: Evaluation John Forde: Market Manager Clint Stewart: Program Manager Arrow Insulation: Ben Burton: Sr. Program Manager

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Multifamily Air Sealing Program

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  1. Multifamily Air Sealing Program Bobbi Wilhelm/John Forde Implementation & Evaluation protocols March 20, 2013

  2. Team Introductions • Puget Sound Energy: • Bobbi Wilhelm: Evaluation • John Forde: Market Manager • Clint Stewart: Program Manager • Arrow Insulation: • Ben Burton: Sr. Program Manager • Dave Burton: Program Manager • Jay Dupree: Field Rep • DNV KEMA: • Jarred Metoyer & Team • More help & support is located on the Microsoft website:http://office.microsoft.com/en-us/powerpoint-help/CL010072915.aspx?CTT=97

  3. Agenda • Overview of the Air Sealing Program • Buildings Served • Air Sealing Video • Program Implementation Protocols • Video of Air Sealing Project • Program Evaluation Protocols/Strategy

  4. Why Multifamily Air Sealing • I-937 • PSE continues to seek new energy savings opportunities in all sectors, including multifamily • Based on the number of electrically heated multifamily buildings/units in the PSE service area, there is significant energy savings opportunity. The estimated potential is 200,000 units • During the 2012-13 RFP process, Arrow Insulation Inc. submitted a Multifamily Air Sealing Proposal

  5. Program Overview • Measures Include: • Attic air sealing and insulation • Dense pack walls/rim joists • Floor air sealing and insulation • Door gaskets and sweeps • Ventilation fan timers • Air sealing only measures if already insulated or combined air sealing and insulation • On site audit to gather building information • Utilizes whole building blower door testing (pre-post) • Program Implementation team conducts post installation TREAT modeling.

  6. Program Overview Continued • Program started January, 2012 and will be completed by December 2013 • Building types range from 6 units single story to 20 units with 3 stories and located in most of the service area counties • Recruitment through past weatherization participants, program marketing efforts, etc. • Owners must commit to no additional energy efficient upgrades for 1 year (including heating season)

  7. Units Served to Date • Previously Insulated Buildings(no additional insulation): • 18 Buildings • 133 Units • 71,328 sq ft attic & floor • 63,772 sq ft walls • Non-previously Insulated: • 15 Buildings • 142 Units • 91,357 sq ft Attic & Floor • 58,027 sq ft Walls

  8. Protocols • Comprehensive TREAT audit performed • Measures include: • Attic air sealing and insulation • Dense pack walls/rim joists • Floor air sealing and insulation • Door gaskets and sweeps • Ventilation fan timers • Inform property owner/set dates for install • Whole building depressurization performed before and after each installed measures

  9. Current Infiltration Reduction

  10. Current Infiltration Reduction

  11. Photos

  12. Video View Youtube Video

  13. Program Implementation & Evaluation • The MF Air Sealing Team invited me (evaluation) in the room early • The team taught me what air sealing was (thanks!) • The team asked for input on what needs to be done so that we can evaluate the program • I suggested: • Testing out after every measure and randomizing measure installation • Help assist with program optimization in event of lower avoided costs • Get a consultant on board who deals with complicated engineering & MF evaluations to take a look

  14. As of April 2012 • Team began testing in and out between measures and randomizing measure installation patterns • We sent out an RFP and hired KEMA to assist with a ‘process’ type evaluation • Provide us with an overview of evaluation methods given our implementation strategy • Give us a ‘best in class’ recommendation for evaluation of the program • Provide us with a gap analysis on data needs

  15. Evaluation Methods • Billing analysis • Relatively complex algorithm that • is accurate for program and site level, • difficult to identify control • difficult for regression to address non‐linear effects of occupancy and measures • Prototype Simulation with Billing History • Affordable • accurate for population • not accurate at the site level • difficulty with understanding the ‘prototype’ • Individual building models –use bill history for calibration • Higher cost • Most Accurate results

  16. Current Program Status • Test in and out of every building • Multiple blower doors – Whole building approach • Test out between every measure • Provides an understanding of how measures stack up • Collecting insulation values pre & post • Collecting up to 10 years of billing history data for every building • Average Heating Set point (thermostat) is gathered • Building, window, etc. square footage • Currently collecting lighting wattages • Collecting major appliances – letting treat default on annual kWh

  17. Next Steps • True up modeling with billing history • Implement process improvements • Air seal final buildngs • Complete Evaluation • Present findings to RTF

  18. Thanks! Questions/Comments?

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