Photovoltaic systems yield experiences?

2021-01-18 13:48:08

as already mentioned 1.8.0. is the consumption and 2.8.0 is the feed-in if I understood correctly, you can use both meters with a metering concept at your utility and use the photovoltaic system for both. Whether that makes sense is another question. currently I have a green electricity tariff at €0.2292/kWh, a pure heat pump tariff would only be - if at all - slightly cheaper, but with an additional monthly fee. I only have the bidirectional meter and my 9.9 kWp south-facing roof system generated 483 kWh in December, of which 358 kWh were fed in.

Where are you from? My 8.6 kWp south-facing roof in Nuremberg only produced 129 kWh in December. January is also looking poor with just 83 kWh so far. Actually, the region is often sunny. But this year something is wrong.

2021-01-18 16:06:05

I am near Dresden.

In January, I am pretty much on par with you. :)

2021-01-18 17:51:02

Where are you from? My 8.6 kWp south-facing roof in Nuremberg only produced 129 kWh in December. January also looks poor with 83 kWh. Actually, the region is often sunny. But this year something's wrong.

This year so far only 10 kWh generated (9.7 kWp) :-( The problem is the snow that stays on the roof too long. By far the worst month so far.

2021-01-18 18:33:37

I am near Dresden.

In January, I am pretty much on par with you. :)

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You were really lucky with December. If PVGIS gives you 300kWh, you're already doing extremely well.

2021-01-18 19:08:35

So, it seems to be clearing up. The solar technician says it also seems very high to him. Possibly the meter connections could be swapped. They will check that tomorrow. The more likely reason for the extremely high consumption, however, will be that after the installation of the meter we still had an electric heater for the underfloor heating for a while, basically a construction site part, since the heat pump could only be installed about 2 weeks later. If that is the case, then that is the case. But at least then we will know.

2021-01-18 19:16:07

Since I am also from near Dresden, I took our data as a comparison for fun. At least it seems we have the same weather (9th-13th Dec.) :cool: 28.35kWp E/W/W.

Photovoltaic systems yield experiences?

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