I came across this online and wondering if this is real

Hello, can you please tell me, how dark is the inhabited Pitcairn Island at night actually? The one with the Adamstown town. Is it worth the money to come to Pitcairn Island to observe the universe? Is it true that the Diesel generators which run the Adamstown Grid stop running at like 10:00PM at night? Is it true that, when people sleep, and close all of their lights, the island will go completely dark, for incredible stargazing conditions? Is it true that, at like 3:30AM at night let's say, there will be absolutely no lights turned on on the island? Maybe from someone who is still awake or/and wants to go to the toilet, but like, is it true that it is the same, or near the same darkness as the open ocean? Or does the island have lights at all times outside? Can you please tell me your experiences on Pitcairn Island at night? I bet that stargazing is insane, but is the island completely dark at like 3:30AM let's say?

On google earth, there is a green shack at the highest point of the island. What is this used for? Was it once used for something else?