Of Cold Climate 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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