ᐅ 12 kWp photovoltaic system with Trina Vertex S panels, Fronius inverter, and BYD battery storage

Hi,

we are currently looking for a solution for our photovoltaic system.
Since our prefabricated house builder charges unrealistically high prices for the photovoltaic system, we have been checking other suppliers.
We are building according to the QNG standard in Baden-Württemberg, so we need at least 12 kWp (due to the roof size) and a battery storage system.

We noticed the following offer from photovoltaik4all:
It concerns a
12 kWp photovoltaic system Trina Vertex S with Fronius GEN24 and BYD battery
for €11,600.

Is this system any good, or does anyone have experience buying the system themselves and then having it installed?
Bad idea?
Is there anything fundamentally wrong with this offer?

Scope of delivery:

• 27x Trina Vertex S+ TSM-445NEG9R.28 445 pump (double glass) – monocrystalline solar module with 445 pump, double glass
• 1x Fronius Symo GEN24 10.0 Plus – 3-phase inverter with integrated backup power
• 1x BYD B-BOX HVS 10.2 battery – (10.24 kWh)
• 1x Fronius Smart Meter TS
• 1x K2 System SingleRail mounting system for pitched roof with tile covering (e.g. Frankfurter Pfanne or similar) – roof hooks K2 Systems Aluminum CrossHook 3S, adjustable in three height levels
• 100m HELUKABEL SOLARFLEX®-X H1Z2Z2-K 6 mm² (0.01 inches²) black
• 2x Stäubli MC4-EVO 2 female photovoltaic connectors KBT4-EVO 2/6II-UR and Stäubli MC4-EVO 2 male photovoltaic connectors KST4-EVO 2/6II-UR

Here you will mostly find clients of solar companies; in another forum, you will find the self-builders.
If you hire a company for the installation, they will provide their own materials and install and guarantee the entire system.
This could also be important for insurance purposes in case of an incident.
The system must be declared in the home insurance policy, which will also increase the premium.
I cannot tell you whether the components work well together.

I_Barbudo_I: I would feel confident enough to do the installation myself, along with a friend who is an electrician (as additional info). This means we would only need an electrician with the appropriate certification to carry out the commissioning.

We had a similar system installed.
Four professionals took one day for the roof, including scaffolding and good calm weather,
and one electrician with an assistant took another day.
I estimate it would take two people about a week for you.
Is your vacation worth that, and make sure you don’t fall off.

I_Barbudo_I schrieb:

Is there anything that fundamentally speaks against the offer?

Scope of delivery:

• 27x Trina Vertex S+ TSM-445NEG9R.28 445 W heat pump BFR (double glass) – monocrystalline solar module with 445 W heat pump, double glass
• 1x Fronius Symo GEN24 10.0 Plus – 3-phase inverter with integrated emergency power
• 1x BYD B-BOX HVS 10.2 battery – (10.24 kWh)
• 1x Fronius Smart Meter TS
• 1x K2 System SingleRail mounting system for pitched roof with tile covering (Frankfurter tile or similar) – roof hook K2 Systems Aluminum CrossHook 3S, adjustable in 3 height positions
• 100m HELUKABEL SOLARFLEX®-X H1Z2Z2-K 6 sqmm black
• 2x Stäubli MC4-EVO 2 female photovoltaic connector KBT4-EVO 2/6II-UR and Stäubli MC4-EVO 2 male photovoltaic connector KST4-EVO 2/6II-UR

From my point of view, there is nothing against the components – we have the same setup (except different modules), and it runs smoothly without any issues...

Hello,

we recently installed 44 modules on a pitched roof as well. It went quite well. The longest part was fixing the roof hooks and cutting the recesses in the roof tiles.

It is important that the roof hooks have many adjustment options. For the recesses, I got a wall groove cutter for 140.00€. That made the work much faster and easier. The electrical installation still needs to be done.

We still had scaffolding from the shell builder, and it took us one week without taking time off.