ᐅ March 16, 2016: Start of Photovoltaic System Installation

Created on: 16 Mar 2016 10:51
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T21150
Today at 10:00 AM, the installation of our new photovoltaic system began.

The approval from the city was granted last week.

Currently, the substructure (Schletter) is being installed.
Tomorrow, the panels will be mounted and the strings routed into the house.

Further electrical installation / inverter setup has not yet been scheduled.

I will keep you updated.

This is an info thread to show how long this process takes, from the first bracket on the roof to commissioning.

Best regards,
Thorsten
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T21150
20 Apr 2016 14:43
Well, the energy meter has been installed since Monday.

The battery is integrated. I’m seeing initial readings, which of course are not yet conclusive.

We’re currently hardly buying any electricity... just producing, selling, storing, and self-consuming. Even on cloudy days, the output is sufficient, partly from the battery, which still gets fully charged again by the evening. It then lasts despite power-hungry refrigerators until about 3:30 a.m. before grid supply is needed.

The system doesn’t actually show any peaks... it runs very steadily from early morning until late. A very nice gadget.

I’m clear with the tax office; I still need to register as a business. The utility company still needs the BNETZ-A number... all in progress.

So, apart from a few pieces of paperwork, the project is successfully completed.
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ONeill
20 Apr 2016 14:47
Very interesting, please keep us updated from time to time on how it’s going. :-)

I skimmed through the thread quickly but didn’t find any figures right away. How much has your "toy" cost in total so far? Maybe with a rough breakdown?

Regards,
Christian
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Elina
20 Apr 2016 19:07
What is your base load? If the full battery only lasts until 3:30 AM, that’s not really long, or depending on how much kWh is used in the evening... it probably looks somewhat better in summer.
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T21150
20 Apr 2016 19:12
Elina schrieb:
What is your base load? If the full battery only lasts until 3:30 AM, that’s not really long, or depending on how many kWh are used in the evening... it probably looks somewhat better in summer.

About 4-5 kWh run overnight.
The old refrigerators... ventilation...

But the battery is small: 2 kWh.

Of course, it’s better in summer – I think from October to February it’s mostly “running low.”

PS: Currently we consume about 12.5 - 14.5 kWh per day.
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toxicmolotof
20 Apr 2016 23:54
With 2kWh, you won’t manage it even in summer.

Here is our result from today, and the weather was really great.

The evening and night will also spoil your plans in summer.

Bar chart of PV energy consumption in April 2016 with consumption and self-sufficiency rate.
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toxicmolotof
20 Apr 2016 23:58
Diagram shows PV energy production and self-consumption in April 2016