.3 Wh is 1080 joules. A liter of gasoline contains over 30 million joules. So this is like .034 milliliters of gasoline. But with grid power so even less than t

.3 Wh is 1080 joules. A liter of gasoline contains over 30 million joules. So this is like .034 milliliters of gasoline. But with grid power so even less than that since gasoline is very inefficient.