Are you claiming they’re building solar power stations and not plugging them to the grid?

That’s a reasonable assumption based on data from the Chinese Communist Party-controlled National Bureau of Statistics.

That doesn’t make much sense.

It doesn’t make much sense to overbuild housing capacity, only to demolish empty or nearly finished buildings either, but that’s also something that China is famous for.

Some possible explanations for a metropolis sized garden of dark solar panels are:

• Tibet is the dumping ground for panels that don’t meet export quality controls
• Panels are cheap enough that using them as shade for desert agriculture makes fiscal sense
• A make-work project to justify the migration of ethnic Chinese laborers to colonized Tibet
• A scheme to artificially inflate GDP
• An authoritarian green-washing propaganda project

These explanations are not mutually exclusive.