There will be connected batteries in every home solving this problem faster than the fossil fuel lobby can come up with a new talking point about why it’ll never work.
In California grid scale batteries have capital costs of around $125/kWh to $155/kWh while a home battery might be 20x that including installation.
Once the early adopters run out they will have to start competing on price to make sales. There's no justification for a home battery when they charge 10k for 10kwh as they do now - only early adopters and government subsidies getting it over the line.
IMO home batteries should be a relatively easy install in principle, it's just still in that early expensive phase.