The man is right - the big users of energy are the tractors and their implements. So how about converting these to run on batteries? The biggest disadvantage of an electric vehicle is being a long way away from a source of power when the batteries are getting low - and on a farm, where you're unlikely to be more than a few miles from the home buildings, that disadvantage is meaningless.
Your product range includes 90 to 120hp tractors, and a permanent magnet electric motor that will deliver this could be built at about 35kg (80lbs). Your little 40hp "utility" tractor would run on a single motor weighing 12kg (26lbs).
If your equipment draws on average 40hp for a three-hour shift then you'll need a battery to store 80kWh - using the Thunder Sky 200Ah lithiums you'd need about 150 of them, which would weigh about 800kg - about 4/5 of a ton. For that little "utility" version you could halve the weight of the batteries. You could "rapid-charge" them in an hour, if you could get hold of a suitably fat grid supply, so when the worker goes in for a bite to eat mid-morning, the batteries can be refuelled too. 80kW from a three-phase 240v supply is about 110A per phase; 40kW is about half that. That's beyond a domestic supply, but as industrial supplies go, it's not very much at all.
This would have the advantages both of breaking the link between oil prices and farm prices, and also prevent the current situation where crops are showered with pollution from internal combustion engines.
I notice John Deere already does a series of electric vehicles for maintaining golf courses, but these seem to use old-fashioned batteries that don't have the power to do heavy work. Perhaps your R&D department should be looking into other chemistries.
