Construction costs are currently skyrocketing

There are also many educated people here who show the same behavior, very interesting impressions.

I hope you can help me with answers. Why are your experts right and mine not?
Why does everyone lie except for the few knowledgeable ones? Why am I being lied to?
Thank you.

BTT:

Offer for photovoltaic system with storage:
- JinkoSolar, 30 modules of 415W each, 12.45 kWp
- Inverter Sungrow Hybrid HV SH10RT
- DC surge protection
- Sungrow SBR128 battery (capacity 12.8 kWh, max output current 30A (peak 42A for 10s), emergency/back-up power and off-grid functionality)
- Meter cabinet: wiring, connection, power-to-heat measurement concept

Total price: €25,000
The storage was listed in the offer at €7,800, but a discount of €2,905 was applied to the total offer, which proportionally affects the storage. Therefore, it's hard to say exactly how much the storage costs more. I think the offer is okay.

Additionally:
- Wallbox Sungrow EV Charger 11 kW - €1,000

So we are right at €26,000 for 12.45 kWp, 12.8 kWh storage and wallbox.

I think we will accept it. Mainly because, of all the other companies we contacted, either a) no one has responded, or b) no offer has been received yet.
This offer comes from the electrician of our general contractor - but it runs directly between the electrician and us. It is probably attractive for both sides since they are going to be working here anyway.

In total, that would be easily €5,000 too expensive for me. But as it often is, when you have no other offers or don’t get any, and you absolutely want to build it that way, you probably have no other choice.

Our photovoltaic offer is now also available in writing and has been ordered:

Astroenergy Modil 400Wp, Full Black, -> 24 pcs -> 4667€
Substructure: 2140€
Inverter: FoxESS, three-phase, 3271€
Storage: 8.7kWh FoxESS Energy Cube 2900 (1x Master, 2x Slave) -> Master: 1785€ Slave: 1510€
Accessories: solar cable, couplings, grounding clamp: 230€
Total: just under 15,000€

Our photovoltaic offer is now also available in writing and has been ordered:

Astroenergy Modil 400Wp, Full Black, -> 24 pcs -> €4667
Substructure: €2140
Inverter: FoxESS, three-phase, €3271
Storage: 8.7kWh FoxESS Energy Cube 2900 (1x Master, 2x Slave) -> Master: €1785 Slave: €1510
Accessories: Solar cable, couplings, grounding clamp: €230
Total: just under €15,000

And what does the installation cost, surely not included at that price?

All in all, that would be about 5,000€ too expensive for me. But that’s how it is when you don’t have or get other offers, and you really want to build it that way, you probably have no choice.

Really, you think that’s expensive? I have almost no comparison offers. I’ve only seen one invoice from my sister, but that was only photovoltaics without storage, and they were similarly priced. But that was still at the offer level before the war (it was commissioned early 22).