[takanori]

That makes sense. This is a century old problem. Are there no viable technical solutions?

[themaninthedark]

You could add more generators over an area to make grid more self sustaining but many people don't want power plants in their backyard and it is costly as you are paying for generating capacity that you don't use(often)

[shortandsweet]

There are. More paths (lines) or bigger, beefier lines with operational margin built in. Costs more money though.