Assessment of heating electricity consumption in existing house

Hello everyone,
We are about to buy an existing house. During the previous viewings, the comparatively low energy consumption was always praised, but now that I have concrete numbers, honestly, I expected it to be even lower.
The house was built in 1983, stone on stone. 196 sqm living space, so quite a huge place. The main living areas have underfloor heating, there is a relatively large finished room above the garage connected to the upper floor, and the basement rooms have radiators.
In 2011, the old heating system was replaced by a heat pump.
The owner says he had heating electricity costs of 3200 euros last year. He calculated that if he had switched to another provider with a better tariff, he would have paid 2800, but because of the planned move, he didn’t bother any further.
There is a photovoltaic system with a storage unit, and the provider currently only allows the use for household electricity. This is supposed to be changed "soon," and any amount that is currently not self-used despite the storage can still be used as heating electricity, so the bills should decrease again.
What do you think about the consumption?
Regards,
Tobi

Hi,

we have a HT / NT meter for our air-water heat pump, which does not interest the current provider.

In addition, we have solar water collectors on the roof. Consumption on average about 5700 KW for 210 sqm living space or 6 people.

Costs about €1,050 per year for that.

Did he ever tell you a KW consumption? Good that the water thing is also separate for us. Although in summer you have too much warm water and don't need it, and in winter too little!

Hello,

is the heat pump responsible for heating and hot water? I would say with €3200 / year at an average of €0.29 / kWh, you come to a consumption of about 11,035 kWh.. But I don't know if the air-water heat pump is calculated with a different electricity price (I just read something about that online)

Edit: A few technical facts about the air-water heat pump would be interesting? Heating capacity etc.

Regards

Steven

Yes, the heat pump provides heating and hot water. I don’t have KW like that, he just knew what he paid last year. As far as I know, with most providers, the heating electricity is cheaper than the consumption electricity. But still more expensive than what you get as feed-in remuneration from the photovoltaic system. At some point he had an energy consultant who said that if you want to do something cheap and simple, you could insulate the top floor ceiling. The attic under the pitched roof is storage space for Christmas tree stands, etc., and is accessible via the hatch.

As said, he should take a look at the KW

but what can you do? maybe upgrade the system though it’s probably relatively new

Insulation? too expensive in relation

reduce consumption or sleep in the cold

or maybe use a lever when switching providers

The 3200 or 2800 euros unfortunately don't say anything at all. How many kWh did you use for heating + domestic hot water?

Insulating the top floor ceiling definitely makes sense!