Small and automated – the future of agricultural machinery?
What if the future of farming isn’t bigger, but smaller, slower and powered by solar? As discussed in our exploration of creating a pathway for alternative farm fuels, there are some specific challenges associated with moving away from diesel in agriculture. Electric powertrains face significant challenges in agricultural vehicles due to energy density limitations. Lithium batteries are approximately 25 times less energy-dense than diesel fuel. John Deere had a go at developing an electric version of a typical diesel tractor weighing about 9 tonnes, to find that the electric equivalent weighed 18 tonnes. Furthermore, the electric tractor could only operate for about 10 hours at 80% load, compared to the 12+ hours expected from a conventional diesel tractor. So, if