Good morning,
I just received a steep price increase from my energy provider enercity, raising the cost to 15 cents per kWh starting in August. That’s really tough, and I think prices will rise even further.
It’s a strange feeling to be thrown back so quickly into an energy supply situation where you have to figure out how to keep the house warm. It seems to me that the government has given up on the goal of enabling everyone to adequately cover at least their basic needs.
Goodbye central supply structures; now the winner is whoever has solar panels and a heat pump in their new build, while the others are left out.
Welcome back, coal heating 😕
Frustrated regards,
I just received a steep price increase from my energy provider enercity, raising the cost to 15 cents per kWh starting in August. That’s really tough, and I think prices will rise even further.
It’s a strange feeling to be thrown back so quickly into an energy supply situation where you have to figure out how to keep the house warm. It seems to me that the government has given up on the goal of enabling everyone to adequately cover at least their basic needs.
Goodbye central supply structures; now the winner is whoever has solar panels and a heat pump in their new build, while the others are left out.
Welcome back, coal heating 😕
Frustrated regards,
xMisterDx schrieb:
A matter of taste 😉
Lately, many have been mentioning their heat pumps combined with photovoltaic systems, claiming they provide self-sufficiency during blackouts... but they don’t realize that these usually have grid-tied inverters, which won’t operate without a connection to the grid... I understand that. My point is more that the cheaper units with air-to-air heat pumps will likely be less practical to retrofit later on. Possibly, fuel cells and hydrogen "home storage" systems will become feasible (= affordable) and mature in the future. That way, you could efficiently heat your home and still generate electricity as a byproduct.
X
xMisterDx13 Sep 2022 22:42sysrun80 schrieb:
I understand. I rather mean that those cheap air-to-air heat pumps will likely be less adaptable later on. Fuel cells and home storage for hydrogen might eventually become practical (i.e., affordable) and mature. That way, you could heat efficiently and still have electricity as a byproduct.I don’t see the fuel cell as the best option. It makes more sense to burn hydrogen or methane directly in efficient gas condensing boilers instead of first converting it back to electricity with losses, and then using a heat pump to convert electricity into heat again...
It’s pretty straightforward physics, really.
R
RotorMotor13 Sep 2022 22:44xMisterDx schrieb:
The environmentally conscious engineer installs an H2-ready gas boiler… no heat pump… because he understands it… That is incorrect!
Generating electricity from gas and then converting it into heat with a heat pump is more efficient.
X
xMisterDx13 Sep 2022 22:47RotorMotor schrieb:
That’s incorrect!
Generating electricity from gas yourself and then converting it to heat with a heat pump is more efficient. That’s true only if you use cheap fossil gas from Russia.
Otherwise, not.
PS:
This is exactly what the heat pump hype in recent years has been based on. In winter, when demand peaks, gas power plants would start up. But that no longer works, which is why electricity prices will skyrocket in winter 😉
Get well soon.
xMisterDx schrieb:
I don’t see fuel cells as the best option. It makes more sense to burn hydrogen/methane directly in efficient gas condensing boilers, rather than first converting it back into electricity with losses and then using a heat pump to convert that electricity back into heat...
Pretty straightforward physics, really. Um. Why a heat pump? High-temperature fuel cells can reach up to 1000 degrees Celsius (1832°F). The rest is electricity. That’s essentially the same as combined heat and power—just without all the mechanical parts.
Where else would energy “loss” happen?
X
xMisterDx13 Sep 2022 22:50sysrun80 schrieb:
Uhm. Why a heat pump? High-temperature fuel cells reach up to 1000 degrees Celsius (1832°F). The rest then is electricity. That’s basically the same as combined heat and power—just without all the mechanical parts.
Where else is energy supposed to be “lost”? I once discussed this a few years ago with some university people... it’s not that simple with fuel cells, they are quite “picky,” don’t like sudden load changes, and so on.
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