Air-water heat pump current consumption and data

Since I don’t have my own heat pump meter, my 1,900 kWh are based on an elaborate estimate ;) However, I assume that this is actually relatively accurate. Since there are only two of us, our hot water consumption is significantly lower (around 300 kWh, the remaining 1,600 kWh is for heating). Additionally, there are 250 kWh for the controlled residential ventilation and 2,000 kWh for household electricity. In total, that makes 4,150 kWh, of which 70% came from the roof. We have about 170 heated sqm, KfW40 standard, as well as a modulating brine-water heat pump. Location is Hochsauerland, so it was really lousy cold this year.

As for the heat pump itself, it does modulate the heating output... but not the pumps – they are fixed at 70%. Since the heating output runs in really low ranges for the vast majority of the time, we will probably have a disproportionately high share of pump electricity. The annual performance factor numbers are given in the heat pump as 5.8 for heating and 4.3 for hot water (mix then 5.6), which I don’t really want to believe. I suspect that these values are without pump electricity, and therefore too optimistic.

In total, 4,150 kWh, of which 70% came from the roof.

How large is your photovoltaic system? How much annual electricity production? 70% is already very good. What special measures of your energy management led to this result?

How large is your photovoltaic system? How much annual electricity production? 70% is already very good. What special measures in your energy management led to this result?

The photovoltaic system has 14.4 kW on a 38° roof facing south. There is no smart stuff or energy management, I only fixed the hot water preparation to 1-3 pm, and lower the target temperature of the underfloor heating by 2° from 6 pm to 4 am. Whenever sensible and possible, we run the washing machine and dishwasher during photovoltaic surplus, but that probably doesn’t make much difference. Otherwise, everything is like in a completely normal, stupid, KNX-less 220V house ;)

The secret to the 70% is probably the 10 kWh battery. If I understand the photovoltaic portal correctly, otherwise we would be at 38% (1,579 direct consumption / 4,154 total consumption).
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Hey everyone,
so for us it looks as follows.

2x adults
2x children
Living area 150 sqm

Photovoltaic system 7.2 kWp facing south
One meter (two-way meter)
Controlled residential ventilation with heat recovery
KfW55
Heat pump Novelan LADV 9.1-1/3

The total electricity consumption including the heat pump for the year 2021 is "4334kWh"
Generation with the photovoltaic system is "5686kWh". I wouldn't know now where to look to see the self-consumption. It is an SMA inverter.

Total generation (displayed on the inverter) - feed-in (2.8.0 on the meter) = self-consumption over the entire runtime.

The inverter also knows how much you generated per day, month, year. This way, you could break it down to 2021 using the billing data. You can read out the inverter with Sunny Explorer or, somewhat more complicated, via Modbus.

Total production (displayed on the inverter) - feed-in (2.8.0 on the meter) = own consumption over the entire runtime.

The inverter also knows how much you produced per day, month, year. So you could break it down to 2021 using the billing data. You can read out the inverter with Sunny Explorer or, somewhat more complicated, via Modbus.

ah....true^^ :D

Please change my post briefly