Those panels are supplying the grid anyway and with angles like this in their lifespan they are going to generate mega watt hours less then their correctly installed counterparts. In a perfect world (with wider solar adoption) this would be considered a waste of panels.
Perfect being the enemy of good
Panels are cheap, and the single-phase inverters they are using are too.
Even with the odd placement, they are going to yield a few hundred watts per panel on sunny days. Since it’s so low most of it will be going directly to household consumption.
This doesn’t move the needle much globally speaking, but it’s also a tiny investment and (especially in Germany when even in sunny days the carbon footprint of what comes out of the grid is horrendous) it significantly lowers household carbon emissions.
Thats why I added the part about perfect world.
In it his house would be supplied from those panels anyway but much better placed.
And panels and inverters are cheap, but so is gasoline. Multiply it a bunch of times and the resources wasted get us another catastrophe.
Orientation doesn’t matter as much as you’d think on overcast days. And this is Germany. Also, transmission is a thing. So unless your “perfect world” also includes perfect weather and upgraded physics, you are just not really making sense.
In the end you’re just yet another person ginning up excuses for inaction by distorting facts. And god knows we good plenty of those.
Will install a form of energy collection that can’t power their entire house for a single day, but will protest against wind turbines that can power multiple houses for days. That’s Germany for ya!
You realize that Germany consists of more than one person?
Of course not. There are two people in Germany called Ursula and Holger and they both live in one apartment with a balcony facing northwest and a “balkonkraftwerk” on it.