# Energy Efficiency

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Category: Assessment

Subcategory: Environment

Level: College

Pages: 1

Words: 275

What is the cost per year of gasoline for a Honda Insight (at the gas price used here)
The cost of gasoline for a Honda Insight car per year is \$760
What is the cost for a vehicle that gets 20 miles per gallon?
Gas millage=20mpg
Miles driven per year = 15000
Cost per gallon= \$3.8
Cost per year = (15000/20) × \$3.8= \$2850
How much more does it cost to run an Excursion, compared to an Insight for a year?
Ford Excursion cost per year
Miles per gallon= 12mpg
Miles per year= 15000
Cost per gallon=\$3.8
Cost of running= (15000miles/12 miles per gallon)× \$3.8= \$4750 per year
Honda Insight Running cost
Miles per gallon= 75 mpg
Miles per year= 15000
Cost per gallon=\$3.8
Cost of running= (15000miles/75 miles per gallon)× \$3.8= \$760
Difference in running cost
Ford Excursion running cost-Honda Insight running cost
\$4750-\$760= \$3990
Raise the cost of gasoline by \$1.00. How much does that change the annual gas cost of an Excursion? Of an Insight
Ford Excursion cost per year
Miles per gallon= 12mpg
Miles per year= 15000
Cost per gallon=\$4.8
Cost of running= (15000miles/12 miles per gallon)× \$4.8= \$6000 per year
\$6000-\$4750= \$1250
Honda Insight Running cost
Miles per gallon= 75 mpg
Miles per year= 15000
Cost per gallon=\$4.8
Cost of running= (15000miles/75 miles per gallon)× \$4.8= \$960
\$960-\$760=\$200 more
The spreadsheet compares the energy use for a vehicle and a computer. How many years could you operate a typical computer (20 hours/day, 7 days/w…