I think this is one of the smartest ideas I've heard of. Easy and cheap energy storage for renewable energy: https://cleantechnica.com/2020/09/22/new-energy-storage-system-from-building-blocks-for-coal-power-plants/amp/ It makes so much sense, since most of the infrastructure is already there and nothing has to be torn down, which of course is a major expense.
To be perfectly frank, the guy does have a point. Ensuring that there's generating capacity to meet the demand of EVs is a difficult problem. Is it a problem that can't be overcome? No. It can be addressed. But it's not a problem that should be minimized. Unfortunately, there are many EV advocates who push rhetoric that either oversimplify, minimize, mischaracterize, or ignore certain issues, which slows down the rate of EV adoption. I should probably do a thread on these topics.
Well, one question is, how much energy does it actually take to get the oil into a cars gas tank? Refineries, pumps, etc. That energy instead of going there going into electric cars reduces the need for more power plants. I'm not sure of the rate, but that's definitely a point as well. And it's one that big oil doesn't want us to think about. There is definitely a complex problem.
It really depends. Many oil rigs uses on site generators for their operations. While that uses electric energy, it doesn't actually impact the grid at all. I highly doubt that there will be any major reductions to electricity use on the grid over all when switching from ICE to EVs. There will be a reduction in total energy use, but not necessarily electric energy use. "Big oil" doesn't have nearly as much power as people attribute to it. I actually think "Big oil" is more of a myth than a reality.