I commend the Omni Richmond for having an Electric Vehicle charger. It is also a high-power charger which adds to it's value. I booked the Omni for expressly this reason. The valet staff were very helpful in getting my car parked to use it, and allowing me ease of access to plug it in, etc..
I would STRONGLY recommend considering adding at least another charger, perhaps a couple more. I was one of 4 electric vehicles at the hotel during my stay, and there was some cars unable to charge.
There is a growing community of EV owners, and among the internet forums I frequent, your hotel already has a good reputation for providing this service. As more EV's are on the road, I expect you will gain even more business if you consider additional chargers and parking spots.
Thanks for providing a valuable amenity.