Most people with solar panels still buy some power from the utility, but it's usually less after they go solar. Making your own electricity without interference is a basic property right. Common law allows you to do what you want on your property as long as it doesn't harm.
Importers are strongly encouraged to check the status of their goods using the Indonesia National Single Window (INSW) portal, which offers a searchable database for regulatory requirements and LARTAS (restricted and prohibited goods) status.