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A gallon of diesel has about 38 kWh. So the diesel unit burns 11 X 38 = 418 kWh in a day.
A Nissan Leaf battery pack is 24 kWh. So to accomplish the same amount of work as the diesel (ignoring differences in efficiencies), you'd need 418/24 = 17 Leaf battery packs. Probably not practical.
If the diesel converts 40% of the energy into useful work and the electric system is 80% efficient, you can cut the battery pack number in half (40/80 = 1/2): 17/2 = 8.5 packs needed. The packs reportedly cost about $9,000 each (on the WAY low side). 8.5 X $9,000 = $76,500 for batteries. Of course if you go with lead-acid, the cost will be lower, but the weight will be higher.
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