Every time I see $/watt charts like this I just want a single link to buy something at that price. 20c/watt? Yes please, _where_.
https://signaturesolar.com/waaree-405w-pallet-mono-31-panels...
The global average price for solar panels is $0.09/W in 2025. I think India, which also has tariffs to stimulate local factories, is around $0.18/W.
Though at these prices you're likely going to be paying nearly as much for mounting materials as you are for the panels.
Edit: Also, used solar panels are becoming a pretty thriving market. Definitely worth checking those out, especially for isolated projects like a solar car port or something.
(§) for example: https://www.mydealz.de/deals/sunpro-500-wp-solarmodul-210-r-...