I was excited that you asked that, so I forgot.
You actually have a net-net decrease in electricity when you run electric equipment. It's always better to deploy electric equipment for the consumption of electricity because of this reduction in ventilation. I spoke about it earlier. Ventilation in our underground mines is half of our electricity consumption. If you have fewer pollutants in the air, then you have to ventilate much less. You can imagine pushing air down from the surface almost a kilometre underground in various different locations takes a tremendous amount of fan power.