sendler2112 wrote:570 Liters of diesel per day = 5,700 kWh per day. Even if you cut that by2.5 for the extra efficiency of electric motors with round trip losses you get 2,300 kWh per day for a large size farm machine. 12 Tesla grid scale 200kWh powerpacks per day to hot swap in and out. for just one tractor. We are going to need to start making a lot of wire to get all of this power around.
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That's it? 2300kwh would weigh 19,464 lbs if using 12 Tesla 200kwh packs at 1,622 lbs. Of course a purpose-built pack would have weight savings. A combine harvester weighs about 30,000 lbs to start with and when loaded up with equipment and grain can come close to 90,000 lbs so if properly designed from the start, 20,000 lbs of batteries might not be that big of a burden after all. Carbon fiber and other high-tech stuff is fast becoming standard-tech and it's only a matter of time until it...wait, it's already being used: http://www.wnif.co.uk/2016/09/john-deer ... d-sprayer/
Yes we will need to upgrade or completely overhaul the grid to support something like that, and use nuclear energy.