Basically the government has been taken over by the fascist military, foreign reserves are already non existent, Pakistan is one of those countries who asks the IMF for a loan every few years, inflation is rising and the bill for electricity is going through the roof cuz god knows how they calculate it. Not to mention, it also has a huuuuge load shedding issue which means it's not uncommon to lose electricity for 6-12 hours everyday and now Pakistan also has natural gas load shedding.
Soooooooooo, these solar systems pay back their investment much much earlier than other countries I think. Keep in mind that people already don't waste electricity or water or gas cuz of load shedding and high prices. So it's considerably cheaper to move houses to fully solar.
It's funny how much wastage is there in western countries, iirc the carbon footprint of the average person in a third world country is roughly 10 times lower than developed countries.