Construction costs are currently skyrocketing

I just got 2 solar panels at a factory outlet of a photovoltaic manufacturer. 0.82 kWhp for 260 EUR. 0.21 kW/m², not particularly good... not particularly bad... typical value. For 10 kWp, you would have paid 3,200 EUR. Of course, then you’re missing an inverter (SMA Solar 10kWp 2,100 EUR) and a 2-man team that climbs around on the roof for a day (hourly rate 120 EUR*2*10 hours = 2,400 EUR + travel 300km*0.5 EUR/km = 150 EUR)...

So. 3,200 + 2,100 + 2,400 + 150 = 7,850 EUR. We round up to 8,000 EUR and ask ourselves what the remaining 7,000 EUR is spent on.

Because neither does a solar installer charge 120 EUR/hour for his journeymen... nor does he buy the modules at the price of 130 EUR/0.41 kWp... nor does he pay the SMA Solar internet price for the inverter...

At least that’s what I assume. Because my craftsman buys his stuff from the wholesaler at good prices and not at Obi, Hornbach... or on sale at the photovoltaic manufacturer’s factory outlet...

Oh right. I’m just reading... 15k net. So we don’t ask where the remaining 7,000 EUR goes. We ask where the remaining 10,850 EUR goes. Because we’ve already paid the VAT. We bought the modules at gross prices, the SMA inverter as well. And the 2-man team likes their salary gross too...

Well, and then the transport of the modules is still missing, the wiring of the modules to the inverters, the mounting materials for the roof, the scaffolding so that the craftsmen can get onto the roof.

However, it can be observed that, in my opinion, the prices for complete packages are just becoming a bit cheaper again.

Scaffolding? Show me the solar installer who lets scaffolding be set up for 2 men for a day. That might be charged, but in the end the long ladder goes up to the roof.

Scaffold? Show me the solar installer who has a scaffold set up for two people for one day. That might be charged, but in the end, the long ladder goes onto the roof.

Our neighboring house just got a photovoltaic system last week and a scaffold was set up for one day.

The invoice still lacks the aluminum substructure, the mostly used stainless steel holders and screws, the cabling and RCBO switches, all operating costs (variable and fixed) that are proportionally allocated, wages, taxes on profits, travel expenses, administrative costs of the order, warranty coverage, etc. It is clear that some black sheep pad their pockets with inflated offers due to the extreme demand, but anyone who perceives €1,500/kWp as "rip-off" should also stop using liquid soap and buying bread rolls at the baker’s.

Does anyone have current costs for tile laying? I checked; in 2017 we paid 66 EUR / m2 all-in for laying floor tiles, including consumables and labor, but excluding the tiles themselves. Currently, we are waiting for quotes for 36m2 of floor tiles.