.Ventura County Air Pollution Control District staff will issue you a voucher worth $129 off the price of a standard corded electric mower or $200 off the price of a cordless electric mower.
I was on a plane next to a Husqvarna engineer a while ago and talked to him about EV stuff.
He said that they had made designs and researched electric riding mowers but one thing that scared them off was the fact that many customers would leave them unplugged all winter long - without charging them after the final mow of the year. Making the batteries survive their customers scared them.
The seasonality of lawnmowing provides a huge challenge that an EV does not have.
I don't see how that's any different than a gas powered mower which needs to be rebuilt each year as they never start the second year. Sounds like an excuse to me.