go green project: energy use carl pedersen, ndsu energy educator
TRANSCRIPT
The U.S. gets 94 percent of its energy from nonrenewable sources and 6 percent from renewable energy sources.
http://www.eia.doe.gov/emeu/aer/eh/frame.html
Home energy use (national averages)
Appliances and Lighting 24%
Electric A/C 8%
Re-frigera-tion 5%
Water Heating 17%
Space Heat-ing 46%
Appliances and Light-ing 21%
Electric A/C 5%
Refrigeration 5%
Water Heating,
15%
Space Heating
54%
Home energy use (upper midwest)
Determining costItem Power
needs(watts)
A
Number of appliances
B
Hours on per day
C
Energy/Day=watt-hour =
A x B x C =
D
Kilowatt-hour per daywatt-hour x 0.001=
D x 0.001 =E
Cost per day
E x $.10/kwh =
F
Cost per year
F X 365 =
G
Incandescent light 75w 1 10 75x1x10=750 750x0.001=0.75kwh 0.75 x $.10=$.075 $27.38/year
CFL lights 15w