Puerto Rico hasn't had a great time of it recently, and in the aftermath of Hurricane Maria large portions of the country's power infrastructure is in disarray. A lot of effort has been done to provide aid, particularly from Elon Musk who had Tesla ship solar panels and Powerwall batteries to bring power back to the population.
As it turns out, though, Musk thinks it's possible to power the entire territory with solar panels and big-ass batteries:
The Tesla team has done this for many smaller islands around the world, but there is no scalability limit, so it can be done for Puerto Rico too. Such a decision would be in the hands of the PR govt, PUC, any commercial stakeholders and, most importantly, the people of PR.
— Elon Musk (@elonmusk) October 5, 2017
I wonder what it would take to do it in the UK? Aside from a tropical climate with lots of sunshine.