Not Indonesia, the peninsula is a small country call Malaysia, the industrial rate is +- usd0.10 to 0.11 /kwh, resident pay more @ +-0.14/kwh, the ambient Temp is 24-35'c all year long
sounds nice, but ...
additional powercost for aircondition
additional invest for aircondition
wet conditions! (bad for airconditions - ask china)

political safe area?
I would prefer those 3 rocking us-cent @USA
In india you can get power @0.1 - 0.2 us-cent / kwh
But ... the same like Malaysia. Quality. Stable and always are a problem.
Even USA has really more power-cut-offs then europe - but that is fine on average.
Why I have such a bad feeling about Malaysia? I dont know. Malaysia Airlines maybe?

here in south east asia, bit coin mining is very hard due to the power cost & the hot climate.
Not much people know about malaysia except the 2 malaysia airline tragedy and the famous 1MDB scandal by their top leader