Sure. If you let the market operate. But at least in Sweden we don’t. So we’re stuck in this loop of conflicting requirements: “no greenhouse emissions, no nuclear, no wind farms close to my home, and double the capacity - thanks!” It’s not going to happen.
But I'm going to miss the sweet petrol and diesel engine cars.
I agree, nothing technological blocks the grids from growing. But there are plenty of political and profit driven blocks which are preventing it.
To continue with my theme of CA power grid bashing - PG&E is still starting forest fires due to poor quality infrastructure (pushing too much power through lines not rated for it, causing sagging). PG&E does constant rolling blackouts over the summer because of their lacking capacity. PG&E imports about 20% of the electricity that CA requires yearly. They do this because it's cheaper than fixing their infrastructure.
And there's no reason they won't just continue in this fashion in the face of their 2035 electric car replacement deadline. They have a government-created monopoly, and have no reason to build out their capacity.
Rinse and repeat for most states and countries.
But when I hear about the grid load, I have no pity. Or fear.
Imagine going back to 1800 and describing to an engineer the vast scale of gasoline production, distribution and consumption. Billions of ICEs distributed around the globe. The scale of fuel distribution! The network of trucks. The massive holding tanks. The inshore and offshore refineries. The pipelines and wells. The geopolitics. The strategic reserves, and prodigious tanker fleets. All because we need something everywhere that is only available in a few places.
We can send a rover to Mars for less cost than a prospecting well in the ocean, and there are lots of oil wells in the ocean. Trillions have been spent.
It seems unfathomable to go to such lengths from scratch. To invent and maintain so much, and for what? And we did.
Now imagine all that exists and you just want more. That's not unfathomable. It's just market dynamics. It'll double just fine thanks. It'll more than double.