Slashing Your Homes GHG Emissions: Where to Start Doug Kunz Item 3 - - PowerPoint PPT Presentation

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Slashing Your Homes GHG Emissions: Where to Start Doug Kunz Item 3 - - PowerPoint PPT Presentation

Jun 20, 2023 33 likes •114 views

Item 3 PRESENTATION Slashing Your Homes GHG Emissions: Where to Start Doug Kunz Item 3 PRESENTATION Context: Building GHG Emissions Emissions from buildings higher than power SIERRA CLUB plants California GHG Emissions (2011-2015)

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SLIDE 1

Slashing Your Home’s GHG Emissions: Where to Start

Doug Kunz

Item 3 PRESENTATION

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SLIDE 2

Context: Building GHG Emissions

Source: CA ARB GHG Inventory; 5-average of emissions by economic sector

Electricity Generation (In State) 11% Electricity Generation (Imports) 9% Buildings 12% Industrial 23% Transportation 37% Ag & Forestry 8%

California GHG Emissions (2011-2015) Total: ~444 MMtCO2e/year Mostly from on- site combustion of gas for water heating and space heating. Emissions could ~double when including methane leakage. Buildings = ~2nd largest source

  • f GHGs (includes emissions

from electricity use)

Emissions from buildings higher than power plants

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SIERRA CLUB

N R D C

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SLIDE 3

Water heater 49% Space heating 37% Stove 7% Pools, spas, misc. 4% Clothes dryer 3%

Household Gas Consumption in CA and climate-friendly electric options

Source: CA Residential Appliance Saturation Study 2010

Electric heat pump dryer Electric heat pump water heater Electric heat pump space heater Electric induction stove

Electrification = clean alternative to gas appliances

7

What drives your house’s emissions?

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SIERRA CLUB

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SLIDE 4

Do you have a “dryer outlet”? Use that circuit to power a water heater!

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SLIDE 5

Specifically: an Electric Heat Pump Water Heater

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U.S. Government

Federal law prohibits removal of this label before consumer purchase. U.S. Government Federal law prohibits removal of this label before consumer purchase.

EHERGYGUIDE

Water Heater - Electric

H

A.O. SMITH WATER PRODUCTS CO.

Tank Size (Storage Capacity): 46 gallons Model E6-50H45DV

EHERGYGUIDE

Water Heater - Heat A.O. SMITH WATER PRODUCTS CO.

Tank Size (Storage Capacity): 46 gallons Model HP10-50H45DVC 120

Estimated Yearly Energy Cost Estimated Yearly Energy Cost

$419 $114

T T T T T T

$120 $120 $423 $423 Cost Range of Similar Models Cost Range of Similar Models The estimated yearly^

ffgy cost of this model was not available at the time the range was published.

First Hour Rating

(How much hot water you get in the first hour of use)

First Hour Rating

(How much hot water you get in the first hour of use)

Very Small Low Medium 66.0 gallons High Very Small Low Medium 62.0 gallons High

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SLIDE 6

Help You’ll Need

  • Electrician
  • Plumber familiar with Electric Heat Pump Water

Heater installations

  • May be installation partner for store that sells water

heater

  • Look for someone that offers pre-installation readiness

assessment

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SLIDE 7

Results So Far: Latest PG&E Bill

12/5: 2nd EV 8/11: Electric Heat Pump Dryer 6/14: Induction range 6/21: Electric heat pump water heater

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Monthly Billing History

Daily Usage Comparison

1 Year Last Current Ago Period Period

32.96 29 11

$300

ll

$225 $150

Electric kWh / Day

$75

2.32 1.82 1.16

$0

T T T T

2017 2/08 3/10 4/09 5/15 6/14 7/14 8/14 9/14 10/13 11/13 12/13 1/11 2/12 2018 Electric Gas

Visit www.pge.com/MyEnergy for a detailed bill comparison Gas Therms / Day

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SLIDE 8

Lots more to do!

  • You need to start somewhere; start with a high-impact change!
  • Relatively quick and cheap
  • Minimal lifestyle impact
  • Look at electric vehicles next

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