I noodled some numbers for the Caterpillar LEXION 500-Series.
*I gave it a thermal efficiency of 45.9% (near-continuous,constant-rpm )
*Allowed 136,775.23 Btu's/gallon diesel
*divided by 3414 Btu/kWh to get an equivalent electrical input commensurate with the diesel's actual net output to the harvester's machinery
*and came up with approx. 116.683 kWh/hour load.
--------------------------------------------------------------------------
If we're looking at an autonomous,GPS-facilitated unit,operating continuously,24-hrs/day,we'd be looking at around 2,800 kWh/day.
A towed,'AG-PACK',2-wheeled trailer 'tender',with 5-Tesla Powerwall-2 units,At 3,701-pounds would suffice to provide enough power.
One operating,and a second,which with a 350kW charger,would come to charge in 8-hours,during off-peak demand,at discounted pricing incentive.Or during mid-day solar farm peaking,when renewables may have to be curtailed,due to insufficient demand,as is experienced in San Francisco,California' summers,where they lose about 850-million EV miles equivalent.
--------------------------------------------------------------------------
The numbers may be a bit loose,but hopefully in the ballpark.
