Personal Energy Personal Energy ConsumptionConsumption

By Jeremy LarsenBy Jeremy Larsen

Household Energy Household Energy ConsumptionConsumptionhttp://www.un.org/esa/sustdev/publications/esa99dp6.pdfhttp://www.un.org/esa/sustdev/publications/esa99dp6.pdf

The household sector is responsible for about 15 to 25 per cent of primary energy use in OECD countries and for a higher share in many developing countries. Average per

capita household energy use in developed countries is about nine times higher than in developing countries

So why are we burning So why are we burning more energy?more energy?

Geographic Location of U.S. Geographic Location of U.S. HouseholdsHouseholds

U.S. Housing Units by U.S. Housing Units by Number of RoomsNumber of Rooms

http://www.eia.doe.gov/emeu/recs/recs97/http://www.eia.doe.gov/emeu/recs/recs97/decade.html#geolocatdecade.html#geolocat

So why are we burning So why are we burning more energy?more energy?We always want more. We always want more.

(Example)(Example)

Some of my own ObservationsSome of my own Observations

VS.VS.

17 17 Bulbs @ Bulbs @

13W13W

221W221W

3 Bulbs 3 Bulbs @ 60W @ 60W

180W180W

Traditional Light FixturesTraditional Light Fixtures Can LightsCan Lights

So why are we burning So why are we burning more energy?more energy?

We always want more.We always want more.

Some of my own ObservationsSome of my own Observations

17 17 Bulbs @ Bulbs @

60W60W

1020W1020W

3 Bulbs 3 Bulbs @ 13W @ 13W

26W26W

Could BeCould Be Actually IsActually Is

So why are we burning So why are we burning more energy?more energy?Assuming that they run for 3 hrs a day 365 days of the year and $0.09/kWhAssuming that they run for 3 hrs a day 365 days of the year and $0.09/kWh

1116.9 1116.9 kWh/yearkWh/year

242 242 kWh/yearkWh/year

197.1kWh/197.1kWh/yearyear

28.47 28.47 kWh/yearkWh/year

$100.52$100.52$21.78$21.78$17.74$17.74$2.56$2.56

Now a Rhetorical QuestionNow a Rhetorical Question

Vehicle Energy UseVehicle Energy Usehttp://www.iea.org/Textbase/Papers/2008/http://www.iea.org/Textbase/Papers/2008/

indicators_2008.pdfindicators_2008.pdf

Vehicle Energy UseVehicle Energy Usehttp://www.iea.org/Textbase/Papers/2008/http://www.iea.org/Textbase/Papers/2008/

indicators_2008.pdfindicators_2008.pdf

Energy Use by End-Use Energy Use by End-Use SectorSector

0

20

40

60

80

100

120

1949

1955

1961

1967

1973

1979

1985

1991

1997

2003

Co

nsu

mp

tion

(Qu

ad

rilli

on

Btu

)

0

1/5

2/5

3/5

4/5

1

1949

1955

1961

1967

1973

1979

1985

1991

1997

2003

Sh

are

Transportation

Industrial

Commercial

Residential

Transportation sector use of energy experienced tremendous growth overall, but registered noticeable pauses in 1974, 1979-1982, 1990 and 1991, and 2001. In 2004, petroleum accounted for 97 percent of the sector’s energy, and motor gasoline accounted for two-thirds of all petroleum used in the sector.

Mark SchipperMark SchipperEnergy Information AdministrationEnergy Information Administration

American Statistical AssociationAmerican Statistical AssociationCommittee on Energy StatisticsCommittee on Energy Statistics

October 20, 2005October 20, 2005

A ComparisonA Comparison

Trips made by... USA Canada Netherlands

Car 89% 76% 45%

Public Transit 2% 10% 7%

Walking 6% 10% 18%

Bicycle <1% 2% 28%

Other 3% 2% 2%

http://bicycleuniverse.info/transpo/almanac.htmlhttp://bicycleuniverse.info/transpo/almanac.html

Zero Energy Homes & Green Building PracticesZero Energy Homes & Green Building Practices

A Few SolutionsA Few Solutionshttp://www.toolbase.orghttp://www.toolbase.org

A Few SolutionsA Few Solutions

Tata Nano $2500 (U.S.) New in India Gets 50 Tata Nano $2500 (U.S.) New in India Gets 50 MPGMPG

No Anti-lock breaks, No airbags, will travel 65 No Anti-lock breaks, No airbags, will travel 65 mphmph

A Few SolutionsA Few Solutions

http://automobiles.honda.com/fcx-clarity/home-energy-station.aspx

If we really want to see If we really want to see change?change?It is what no one wants to hear but we will have to give up It is what no one wants to hear but we will have to give up

some things rather than always getting more.some things rather than always getting more.

What is wrong with us?What is wrong with us?

What is wrong with us?What is wrong with us?

Energy SavingsEnergy SavingsIf we could actually cut our household energy If we could actually cut our household energy

usage in half…usage in half…

Current Average Household Energy Usage = 35 GJCurrent Average Household Energy Usage = 35 GJ

9730 kWh/2 = 4865 kWh9730 kWh/2 = 4865 kWh

35 GJ = 9730 kWh35 GJ = 9730 kWh

4865 kWh * $0.09 = $437.85 saved per year per household.4865 kWh * $0.09 = $437.85 saved per year per household.

$437.85 * 105,480,101 households in the year 2000 = $437.85 * 105,480,101 households in the year 2000 = $46,184,462,222.80 saved per year$46,184,462,222.80 saved per year

17.5 GJ * 105,480,101 households in the year 2000 = 1.85x10^18 J or 17.5 GJ * 105,480,101 households in the year 2000 = 1.85x10^18 J or 5.13x10^ 11 kWh saved per year5.13x10^ 11 kWh saved per year