I guess everyone posting in this thread knows how technology is implemented, by market pressure and application. The electric Nikola trucks are a perfect example.
There's also ancillary effects at work for mining, removing exhaust fumes and replacing with fresh air isn't cheap. There are mines in Ontario that are allowed to flood and all the equipment left in the mine, later to be overhauled when market prices reach operational/cost effective levels. If that's easier or cheaper to do with electric drives I doubt.
Even though Benz made electric vehicles in the 19th century, they never became popular because oil was a cheap and dense power source. Now, we are at the mercy of climate change and the price of fuel is climbing. That makes electric motive devices attractive. If Musk can roll out battery exchange stations where it takes less time to change out to a fully charged battery than filling a tank and one doesn't need to leave the vehicle, he'll corner the market.
The typical mentioned hurdle of electricity production just doesn't mean much, IMO. Just look to Europe to see how they've handled electricity production and infrastructure. Some of these countries will be off of fossil fuels in a few years.
