The main point is having LOCAL systems (not-OEM controlled), which is a problem since 99% of the people, electricians included, have not enough IT skills to configure a fully local system even if some are available commercially...
The secondary point is using p.v. for self-consumption with a bit of storage instead of injected to the grid in the absence, and substantial technical impossibility, of a national smart-grid.
Unfortunately giants do not want people who own, so do their best to be against self-consumption and storage, even pretend to meter the self-consumed energy and tax them. If the current pro-giants evolutionary moves against civil society interest do not end we will end in disasters and civil wars, and no, it's not an exaggeration.
The secondary point is using p.v. for self-consumption with a bit of storage instead of injected to the grid in the absence, and substantial technical impossibility, of a national smart-grid.
Unfortunately giants do not want people who own, so do their best to be against self-consumption and storage, even pretend to meter the self-consumed energy and tax them. If the current pro-giants evolutionary moves against civil society interest do not end we will end in disasters and civil wars, and no, it's not an exaggeration.