Signature had hyundai panels for 31c/W with flat rate shipping above a certain order. BOS for off grid or grid agnostic is another 25c - 50c/W and storage for $280/kWh
There are so many manufacturers across the entire globe, and it's not something country specific due to the availability of some underground fuel like gas, oil or uranium sources, that I find it unlikely to happen
That's interesting! In 2017 it was still 0.50$/w and solar pretty much was the cheapest form of electricity. With huge demand I thought maybe prices would stabilize, but it's awesome that they're still falling. We might literally see solar panels everywhere in the future and near free electricity, at least during sun hours. Imagine installing an AC along with a couple of these and setting the AC to run when they are providing power. Free cool air when it's needed.
The sun is always up somewhere. I haven't seen any numbers on the cost to implement compared to alternatives like battery or pumped hydro storage, but in theory, a global power grid with enough transmission capacity could run entirely on solar.
Well a superconducting loop (even with liquid nitrogen costs/inefficiencies) would enable a global grid with quite minimal energy loses and reduce the amount of energy storage needed to sustain a stable grid even in the face of failures and disruptions.
The big problem tends to do with harmonization of energy grid standards.