[bryanlarsen]

Grid stability isn't necessary. It's OK to only run air conditioning when the sun is shining.

[hackerlight]

There are often blackouts while the sun is shining in lower income countries.

[bryanlarsen]

Yes, local solar panels are needed too.

[hackerlight]

It's cost prohibitive, a small hybrid system costs $4000usd which exceeds the average annual income of many equatorial countries. But you are right that if somehow everyone could install this system (along with an AC and the construction of an airtight room) then wet bulb events would be manageable.

[bryanlarsen]

The solar panels to run an air conditioner are a similar cost as the air conditioner.