ᐅ Is a Separate Meter and Electricity Tariff for an Air-to-Water Heat Pump Beneficial?

_Ugeen_ schrieb:

Ok, I might ask a really basic question. Aren’t two tariffs (a fixed basic charge plus a price per kWh) more expensive than using a single all-in tariff?

This can’t be answered in general terms. Heat pump basic charges are usually significantly cheaper. However, the general issue is that the price difference between individual tariffs is becoming smaller. So, it’s essential to do the calculations.

Back in 2009, using off-peak/standard rates definitely made sense for us.

Just as an example:
4,000 kWh heat pump electricity at my cheapest offer with all discounts about €80 per month (+ second meter)
4,000 kWh household electricity at my cheapest offer with all discounts about €79 per month (without second meter)

Of course, this only applies if you switch providers annually and take advantage of switching bonuses. So for me, currently a clear "no" to two tariffs/meters.

Okay, so it depends on the consumption. I was always led to believe that we need two tariffs for the air-to-water heat pump and for household electricity. Is that not the case? From when does the air-to-water heat pump continuously draw power, or is this always the case? Maybe I haven’t fully understood the concept yet.

hampshire schrieb:

If you choose a discounted heat pump tariff, you purchase 100% of the energy for the heat pump.
Parameters:
Electricity consumption of the heat pump (WPkWh)
Percentage of energy demand covered by photovoltaic (Photovoltaic%)
Cost of photovoltaic energy generation (Photovoltaic€/kWh)
Cost of standard tariff electricity (Standard€/kWh)
Meter base fee (Base fee)
Cost of heat pump tariff electricity (Heat pump€/kWh)

WPkWh × Photovoltaic% × Photovoltaic€/kWh + WPkWh × (1 - Photovoltaic%) × Standard€/kWh = comparison cost without separate meter
WPkWh × Heat pump€/kWh + Base fee = comparison cost with separate meter and heat pump tariff.

However, not everyone has photovoltaic panels. Then the calculation changes accordingly.

_Ugeen_ schrieb:

I was always led to believe that we need two different tariffs for the air-to-water heat pump and the household electricity. Is that not the case?

No, that is not the case. The electricity provider secures a part of your consumption costs and therefore has an interest in selling the second meter.

motorradsilke schrieb:

Not everyone has photovoltaic panels. In that case, the calculation will be different.

In that case, the photovoltaic share is set to 0%.