Sure Hawaii average electric rate is $0.44 per KWh and gas $4.78
24369.84 kwh×.44 per kwh = $10722.7296
$10722.7296 ÷73848 miles = 0.1452 per mile
$4.78 ÷ 33 mpg = 0.1448 per mile.
About 33 mpg is your break even point on pure cost per mile in Hawaii. I know there are other costs.
EDIT look like the average rate in Hawaii dropped to $.4246 per kwh
and gas is up slightly.
Current Avg. | $4.793 | $4.989 | $5.243 | $5.726 |
24269.84 × .4246 = 10304.9741
10304.9741 / 73848 = 0.1395
4.793÷35 = 0.1369
So between 34 and 35 mpg to break even...