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Ground Source Heat Pumps

Ground Source Heat Pumps. Active UES Proposal Presentation to the Regional Technical Forum Revised per RTF guidance/decisions at August 2 nd , 2011 meeting. Background. April 5, 2011: RTF approved the residential UES measure “ Upgrade from ASHP to GSHP ” RTF staff was asked to:

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Ground Source Heat Pumps

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  1. Ground Source Heat Pumps Active UES Proposal Presentation to the Regional Technical Forum Revised per RTF guidance/decisions at August 2nd, 2011 meeting

  2. Background • April 5, 2011: • RTF approved the residential UES measure “Upgrade from ASHP to GSHP” • RTF staff was asked to: • finalize documentation of the measure • measure workbook • technical specifications • Develop savings estimates for proposed UES measures: • “Conversion from FAF w/CAC to GSHP” • “Conversion from FAF w/o CAC to GSHP”

  3. Measure Summary • Measure name: Ground Source Heat Pumps • Measure description • In new or existing site-built or manufactured homes in heating zones 2 and 3, GSHP system upgrade from Air Source Heat Pump or conversion from electric Forced Air Furnace (with or without Central AC). Optional upgrade of Electric Water heater with Desuperheat pre-heating. • Measure type: UES • Requesting Status: Active • (ASHPGSHP already approved as active) • Change in measure status: Yes (proposed  active) • Change in measure savings: No (new measure) • Change in measure cost effectiveness: No • Other or follow-on work for RTF: No

  4. UES Analysis Summary

  5. Heating Zone 1 is not included in this measure based on the RTF decision on August 2nd, 2011. This decision is based on: - FAF baseline in heating zone 1 is not common based on OR & WA code. - GSHP program activity is in the colder areas of the region.

  6. Measure Costs • Equipment Costs • FAF costs based on: - CAC Cost based on: • GSHP and ASHP costs based on sizing • Details given in 4/5/2011 presentation to RTF • Desuperheater Cost = $1,000 • FAF w/CACMeasure Costs = GSHPcost- FAFcost+Dsprhtrcost(if applicable) - CACcost • FAF w/o CAC Measure Costs = GSHPcost– FAFcost+ Dsprhtrcost(if applicable) • All measures run as “Lost Opportunity” • Measure Life = 20 years

  7. Results

  8. Note: Measures shown here are for Cooling Zone 1, where applicable. Cooling Zones 2 and 3 also have defined UES measures.

  9. Recommendations • RTF Staff recommendation(s) • Adopt measure specifications Send measure specifications out for public comment and review by subcommittee • Adopt unit energy savings • Adopt measure costs • Adopt Measure life • Sunset Criteria: Measure shall sunset April 5, 2016.

  10. RTF Proposed Motion: “I _________ move that the RTF - approve the FAF to GSHP UES measures to Active status with a sunset date of April 5, 2016 and - adopt the GSHP Specifications initiate public and subcommittee review of specifications with a sunset date of April 5, 2016.”

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