This doesn't cover all tractor uses of course, in the Texas Hill Country (think around Austin) there's a pretty large cohort of people (non farmers) that have enough land to necessitate a tractor or bob-cat that will only be used a few times a month.<p>Imagine being able to "jettison" your battery pack from your classic car EV conversion to plop into your tractor. I know the swappable battery packs failed to take up with the Tesla model, but think about the secondary machines that need occasional power - tractors, ride on lawn mowers, sentimental classic/ hobby vehicle. Things that could be used in series (you won't be moving your lawn and driving your classic car at the same time) that could also benefit as being a power wall.<p>High class problem for sure, there's a big opportunity to leverage micro-grids + flexible power.