Some of our neighbours had home solar, wind, and battery storage in the 1990s.

They had a huge specially-made array of lead acid batteries, a backup wood-fired stove for cooking when their power went out, a refrigeration setup where they had to child-lock the fridge during an outage so visitors wouldn't open it and spoil their milk, and no grid connection (which wouldn't have easily allowed residential exports until the late 90s anyway). They also had no cooling other than a fan and windows, and wood heating.

It's honestly pretty impressive how far we've come. Particularly in Australia, where we're world leaders in home solar capacity but are lagging behind in utility-scale renewables, it's really breathtaking to see the country go from 44kWh to 1880kWh per capita capacity in 15 years based mostly off incentivised rooftop solar.