Evaluation of Cold Climate Heat Pumps in Vermont

Evaluation of Cold Climate Heat Pumps in Vermont

November 3, 2017

Vermont Public Service Department 112 State Street

Montpelier, VT 05620-2601

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Prepared by: John Walczyk

The Cadmus Group LLC

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Table of Contents

Glossary of Terms and Acronyms ................................................................................................................. ii Executive Summary....................................................................................................................................... 1 Introduction .................................................................................................................................................. 6

Research Objectives ............................................................................................................................... 7 Approach ................................................................................................................................................ 7 ccHP Technology and Metering Study Overview ................................................................................... 8 Findings ....................................................................................................................................................... 15 Appendix A. Technical Information............................................................................................................. 42 Appendix B. Survey Responses ................................................................................................................... 49 Appendix C. Metering Equipment............................................................................................................... 65 Appendix D. Other Heat Pump Research Studies ....................................................................................... 69 Appendix E. AMI Smart Meter Data Analysis.............................................................................................. 75 Data Sources......................................................................................................................................... 75 Modeling............................................................................................................................................... 76 Results .................................................................................................................................................. 82

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