ᐅ Heat Pump Tariff & Blocked Hours – Requesting Opinions

nordanney schrieb:

Not in new constructions. Yes, the heat pump does use more electricity when it restarts after two hours, but I consider this difference negligible.

And technically, does that not cause any issues with the pump?

HilfeHilfe schrieb:

Does this have any technical impact on the pump?

It might cause an extra start for the compressor. It’s not a big deal.

Otherwise, nothing technical happens. A potentially longer heating cycle is interrupted and split into two cycles. In winter, if the heat pump runs continuously, this could result in about 100 additional starts per year (number is arbitrary). A heat pump is designed for around 100,000 starts. So, this is not really critical.

nordanney schrieb:

In my region, I have been running the heat pump on regular household electricity for ten years.
Overall, it is significantly cheaper than a special tariff with a second meter. The electricity currently costs 25.9 cents.

Here, it’s the opposite. Standard electricity is 31 cents, heating electricity is 21 cents. So the second meter is worthwhile.
You don’t notice any power cuts. I couldn’t even tell you if or when our supply is cut off.
It probably doesn’t affect the heat pump since it switches on and off several times a day anyway. Ideally, it’s not running during the blackout period.

motorradsilke schrieb:

Standard electricity rate 31 cents, heating electricity 21 cents. That makes a second meter worthwhile.

Really? It’s worth it? That only amounts to about €200 (around $220) savings on electricity costs in a new build (for me last year it would have been €150). Does your heat pump electricity have such a low base fee that it makes a difference? (I just checked mine — the base fee starts at €240, so it definitely wouldn’t be worth it.)
If you consume a lot, like in an older building or a particularly large house, you might save some money. But generally, I still believe it’s only worthwhile in very rare cases.

It’s fascinating how different it can be across Germany.

HilfeHilfe schrieb:

Hello,

In my neighborhood, heat pumps are failing one after another. A reason often mentioned is the lockout periods, where heat pumps basically come to a complete stop.

However, this is mainly due to some electrical specialists having "hardwired" the units back then, meaning the entire system was shut down completely by the cutoff signal.

Electronics do not react well to this.

Nowadays, the system receives the signal and powers down gradually, so nothing else can be damaged.

Otherwise, I agree with @nordanney: it has to be a significant problem for it to be worthwhile...

nordanney schrieb:

Really? Is it worth it? For a new build, the savings on electricity are around €200 (about $215) per year (last year, mine would have been €150). Is your heat pump electricity base fee really that low for it to make sense? I just checked mine, and the base fee starts at €240 (about $260) – so it’s definitely not cost-effective.
If you consume a lot, like in an older building or a particularly large house, you might save money. But generally, I still maintain that it only pays off in very rare cases.

It’s fascinating how different things are across Germany.

I just checked — my base fee is €62 (about $67).
If you’re paying €240 (about $260) as a base fee, it’s no surprise you have such a low per kWh price.