On: Solar panels disguised as terracotta tiles in Pomp...

[cmarschner]

It makes sense to put nicer looking tiles on rooftops if you value the looks of them. You would then find normal looking tiles a tax. That‘s why it could make sense to put solar panels on roofs that don‘t impose this tax on you even if their efficiency is lower.

[stavros → cmarschner]

This answer is to "given that you want solar panels, why put tiles". I think the question is "given that you want tiles, why put solar panels".