November 2 nd Dustin Madden Created for EdTech 630

Background

The Question Is it more efficient to live near work and commute by bicycle, or to share a household?

Is it more efficient to live near work and commute by bicycle, or to share a household?

Assumptions One Household vs. Two Rent? Electricity? Energy Requirements of Splitting Household? Commute From where? Bike everyday? Other Driving

One Household vs. Two

Rent?

Electricity?

Energy Requirements of Splitting Household?

Commute

From where?

Bike everyday?

Other Driving

Methodology Commuting Odometer Digital Fuel Economy Display Monday – Friday Subtract Estimated Commute from A. Heights Household Heating Inputs (dimensions, furnace/duct eff.) BEES Insulation / Infiltration Min. Req. Degree Days / Year (NOAA) Lots of Calculations BEES?

Commuting

Odometer

Digital Fuel Economy Display

Monday – Friday

Subtract Estimated Commute from A. Heights

Household Heating

Inputs (dimensions, furnace/duct eff.)

BEES Insulation / Infiltration Min. Req.

Degree Days / Year (NOAA)

Lots of Calculations

BEES?

Results – Daily Commute Time Frame: Total CO2 Released (lbs.) Weekly Total 114.27 Estimated Yearly Total 5,942.00 Estimated Weekly Commute (w/Bike) 19.68 Estimated Yearly Total (w/Bike) 1,023.57 CO2 Savings by Bike Commute: 4,918.43

Results: Heating a 1,500 ft. 2 home vs. 900 ft. 2 1500 ft. 2 home 900 ft. 2 home Annual Fuel Energy Needed (BTU/yr) 175,030,451 128,033,110 Annual Cubic feet of natural gas needed: 175,030 128,033 Annual lbs. CO2 released 20,129 14,724 Annual Natural Gas Cost: $1,750.30 $1,280.33

Results – EnergyStar Homes Annual Fuel Energy Needed (BTU/yr) 66,173,713 Annual Cubic feet of natural gas needed: 66,174 Annual lbs. CO2 released by heating home: 7,610 Annual Natural Gas Cost: $661.74

Comparison – Personal Impact Energy Use Small is Beautiful Energy Efficiency  Huge! Financial Buying a home Heating Costs Subaru: Gas Costs

Energy Use

Small is Beautiful

Energy Efficiency  Huge!

Financial

Buying a home

Heating Costs

Subaru: Gas Costs

Comparison – Personal Impact Contentment Combined Family Living US: Loser! World: Individualism vs. Collectivism Personally Fitness Leisure Time

Contentment

Combined Family Living

US: Loser!

World: Individualism vs. Collectivism

Personally

Fitness

Leisure Time

Implications for Society Changes Suggested… Small Houses Energy Efficiency Combined Family Living Consumerism

Changes Suggested…

Small Houses

Energy Efficiency

Combined Family Living

Consumerism

Implications for Society Benefits to Society Economic Geopolitical Social

Benefits to Society

Economic

Geopolitical

Social

Limitations of Study Simplified Home Energy Use Model Conversion for Natural Gas  CO 2 ? Capital Costs not taken into account Non-Commute Driving: Good assumption? What are the energy costs of building a home? Is there a correlation between the number of people living together and happiness? Further Research:

Simplified Home Energy Use Model

Conversion for Natural Gas  CO 2 ?

Capital Costs not taken into account

Non-Commute Driving: Good assumption?

What are the energy costs of building a home?

Is there a correlation between the number of people living together and happiness?

Sources “ Alaska Building Energy Efficiency Standard.” Alaska Housing Finance Corporation . Address: http://www.ahfc.state.ak.us/reference/bees.cfm Date Accessed: 11/2/2008 “ Approximate Heat content of Natural Gas”. DOE . Address: http://www.eia.doe.gov/emeu/aer/txt/ptb1304.html. Date Accessed: 10/30/2008 "Frequently Asked Global Change Questions." Carbon Dioxide Information Analysis Center. Address: http://cdiac.ornl.gov/pns/faq.html Date Accessed: 10/4/2008 “ Improve Your Home’s Energy Efficiency with ENERGY STAR”. US EPA & DOE . Address: http://www.energystar.gov/index.cfm?c=about.ab_index Date Accessed: 11/3/2008 Leckie, Jim. More Other Homes and Garbage: Designs for Self-Sufficienct Living. Sierra Club Books. San Francisco, 1981.

“ Alaska Building Energy Efficiency Standard.” Alaska Housing Finance Corporation . Address: http://www.ahfc.state.ak.us/reference/bees.cfm Date Accessed: 11/2/2008

“ Approximate Heat content of Natural Gas”. DOE . Address: http://www.eia.doe.gov/emeu/aer/txt/ptb1304.html. Date Accessed: 10/30/2008

"Frequently Asked Global Change Questions." Carbon Dioxide Information Analysis Center. Address: http://cdiac.ornl.gov/pns/faq.html Date Accessed: 10/4/2008

“ Improve Your Home’s Energy Efficiency with ENERGY STAR”. US EPA & DOE . Address: http://www.energystar.gov/index.cfm?c=about.ab_index Date Accessed: 11/3/2008

Leckie, Jim. More Other Homes and Garbage: Designs for Self-Sufficienct Living. Sierra Club Books. San Francisco, 1981.