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A Pocket Guide to All-Electric Retrofits of Single-Family Homes

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A Pocket Guide to All-Electric Retrofits of Single-Family Homes Sean Armstrong’s House in Arcata, CA The Heat Pump Store in Portland, Oregon Jon and Kelly’s Electrified Home in Cleveland, OH Darby Family Home, New York A Pocket Guide to All-Electric Retrofits of Single-Family Homes A Water Vapor Fireplace by Nero Fire Design A Big Chill Retro Induction Range A NeoCharge Smart Circuit Splitter February 2021 Contributing Authors Redwood Energy Sean Armstrong, Emily Higbee, Dylan Anderson Anissa Stull, Cassidy Fosdick, Cheyenna Burrows, Hannah Cantrell, Harlo Pippenger, Isabella Barrios Silva, Jade Dodley, Jason Chauvin, Jonathan Sander, Kathrine Sanguinetti, Rebecca Hueckel, Roger Hess, Lynn Brown, Nicholas Brandi, Richard Thompson III, Romero Perez, Wyatt Kozelka Menlo Spark Diane Bailey, Tom Kabat Thank you to: The many generous people discussed in the booklet who opened their homes up for public scrutiny, as well as: Li Ling Young of VEIC Rhys David of SMUD Nate Adams of Energy Smart Ohio Jonathan and Sarah Moscatello of The Heat Pump Store The Bay Area Air Quality Management for their contribution in support of this guide Erika Reinhardt Thank you for contributing images of your beautiful homes and projects! Barry Cinnamon, Diane Sweet of EmeraldECO, Dick Swanson, Eva Markiewicz and Spencer Ahrens, Indra Ghosh, Jeff and Debbie Byron, Mary Dateo, Pierre Delforge And thank you to those who reviewed and edited! Bruce Naegel, David Coale, David Moller, Edwin Orrett, Nick Carter, Reuben Veek, Robert Robey, Rob Koslowsky, Sara Zimmerman, Sean Denniston, Steve Pierce Contact This report was produced for Menlo Spark, a non-profit, Sean Armstrong, Redwood Energy community-based organization that unites businesses, residents, (707) 826-1450 and government partners to achieve a climate-neutral Menlo [email protected] Park by 2025. Menlo Spark weaves together transformational energy, transportation, land use and building policies that promote community prosperity, bolster economic vitality, and Check out Redwood Energy’s Commercial, Multifamily and protect civic heritage. The intent of this report is to help cities Single-Family Home Zero Carbon All-Electric Guides at their and developers everywhere embrace healthier, lower cost all- website: https://www.redwoodenergy.research/ electric building construction practices. A Zero Emissions All-Electric Retrofit Single-Family Construction GuideRedwood Energy 2021 1 Table of Contents INTRODUCTION ................................................................................................................................................................................. 5 THE BUSINESS OF ELECTRIFYING HOMES ........................................................................................................................................... 6 CLEAN ENERGY COMPANY HIGHLIGHT: BLOCPOWER ......................................................................................................................................... 6 A LIST OF CALIFORNIA CONTRACTORS WHO PERFORM BUILDING ELECTRIFICATION .................................................................................................. 6 ELECTRIFICATION TECHNICAL ASSISTANCE PROGRAM ......................................................................................................................................... 6 THE BENEFITS OF AN ALL-ELECTRIC HOME RETROFIT......................................................................................................................... 7 HEALTH .................................................................................................................................................................................................... 7 SAFETY ..................................................................................................................................................................................................... 7 WEALTH ................................................................................................................................................................................................... 7 COMFORT ................................................................................................................................................................................................. 7 CLIMATE ................................................................................................................................................................................................... 7 DESIGN FACTORS WHEN ELECTRIFYING YOUR HOME ........................................................................................................................ 8 ELECTRIFYING ON A TIGHT BUDGET .................................................................................................................................................. 9 PLUG-IN COOKTOPS .................................................................................................................................................................................... 9 PLUG-IN COOKING APPLIANCES ..................................................................................................................................................................... 9 PLUG-IN SPACE HEATERS ........................................................................................................................................................................... 10 WATER HEATERS ...................................................................................................................................................................................... 10 WHAT DOES IT COST TO ELECTRIFY YOUR ENTIRE HOME? ............................................................................................................... 11 WHAT DOES IT COST TO ELECTRIFY YOUR HOME’S KITCHEN? ........................................................................................................................... 12 WHAT DOES IT COST TO ELECTRIFY YOUR HOME’S LAUNDRY DRYER? ................................................................................................................ 13 WHAT DOES IT COST TO ELECTRIFY YOUR HOME’S WATER HEATING? ................................................................................................................ 14 California: The Sacramento Municipal Utility District (SMUD) ........................................................................................................ 14 WHAT DOES IT COST TO ELECTRIFY YOUR SPACE HEATING? ............................................................................................................................. 15 California: The Sacramento Municipal Utility District (SMUD) ........................................................................................................ 15 Oregon: The Heat Pump Store ......................................................................................................................................................... 16 Ohio: Energy Smart Home Performance ......................................................................................................................................... 17 Vermont and New York: The Vermont Energy Investment Corporation (VEIC) ............................................................................... 18 Massachusetts: State-Wide Rebate Data ........................................................................................................................................ 18 THE “WATT DIET” - AVOID A NEW ELECTRICAL PANEL AND REDUCE WIRING .................................................................................. 19 A 100-AMP PANEL HAS ENOUGH POWER FOR COMPLETE ELECTRIFICATION OF A 3,000 SQUARE FOOT HOME ............................................................. 19 HOW INSULATING AND AIR SEALING REDUCE THE NECESSARY SPACE HEATING POWER .......................................................................................... 21 POWER TRADE-OFFS FOR THE WATT DIET ..................................................................................................................................................... 22 SIMPLE “BOX-SWAPPING” RETROFITS ............................................................................................................................................. 25 BOX SWAPPING THE HEATING, VENTILATION AND AIR CONDITIONING (HVAC) SYSTEM ........................................................................................ 25 Box Swapping a Ducted HVAC System ............................................................................................................................................ 25 Box Swapping a Ductless System .................................................................................................................................................... 25 BOX SWAPPING A WATER HEATER ............................................................................................................................................................... 26 Gas Tank Water Heater to Heat Pump Water Heater (HPWH) ....................................................................................................... 26 Three ways to get more hot water – which one is right for you? .................................................................................................................... 27 BOX SWAPPING A STOVE...........................................................................................................................................................................
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