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:
It’s less about being cutting-edge and more about the number of parts/components involved...
The likelihood of a failure doesn’t increase linearly with the number of parts but exponentially...
Now let’s think about where more components/parts are involved.
In a gas boiler... or a heat pump system with geothermal heat pump/air radiator, photovoltaic panels, and that compressor powered by an internal combustion engine... What can I say – at that point, probably only a wood-burning stove with a water jacket – operated by a hand pump – would help.
Good thing cars still get moving nowadays and airplanes still fly with jet engines...
X
xMisterDx13 Sep 2022 23:14sysrun80 schrieb:
What can I say – I guess only a wood-burning stove with a water circulation system and a hand pump will help.
Good thing cars still manage to get moving nowadays and airplanes fly with jet engines... If you only knew what kind of technology is needed today before an engine even makes a sound...
Fifty years ago, fuel and ignition were enough...
KingJulien14 Sep 2022 10:58xMisterDx schrieb:
The environmentally conscious engineer is having an H2-ready gas boiler installed... no heat pump... because he understands the situation... What do you mean? That he will either heat very expensively or not at all when gas or electricity is unavailable?
But he can at least look forward to possibly heating with hydrogen in 10 years.
The whole blackout issue is just hysteria. There will be no blackouts. At least not due to gas shortages.
Cyberattacks would be a bigger concern.
And if electricity is deliberately shut off for 2 hours in a neighborhood... so what?
xMisterDx schrieb:
The green engineer installs an H2-ready gas boiler... no heat pump... because he understands it... Well, I don’t really know what a green engineer is supposed to be...
A “normal” engineer, assuming they know more than just how to show off their title, first familiarizes themselves with the topology and material properties of the existing gas networks. At the latest then, they learn about buzzwords like “hydrogen embrittlement” of metallic welded joints and the gas transmission characteristics of PE and PEX materials and can then estimate if and when they will actually be able to run their “H2-ready” gas boiler with hydrogen. No spoilers here.
Hello,
Last year, there were several articles about this in the VDI Nachrichten. A 10-20% hydrogen blend seems achievable, requiring "only" a few components to be upgraded at key points in the gas network. Most pipelines can probably handle this. For 100% hydrogen, you would essentially have to replace the entire gas pipeline network. That won’t happen.
Best regards,
Andreas
MayrCh schrieb:
By then, anyone with some knowledge about keywords like "hydrogen embrittlement" of metallic welds and the gas transmission properties of PE and PEX materials will be able to estimate if and when they can actually operate their "H2-ready" gas boiler with hydrogen.
Last year, there were several articles about this in the VDI Nachrichten. A 10-20% hydrogen blend seems achievable, requiring "only" a few components to be upgraded at key points in the gas network. Most pipelines can probably handle this. For 100% hydrogen, you would essentially have to replace the entire gas pipeline network. That won’t happen.
Best regards,
Andreas
andimann schrieb:
For 100% H2, you would more or less have to replace the entire gas pipeline network. That’s not going to happen.That’s why it’s probably more practical to start with power-to-gas. Methane already contains enough hydrogen that even the "Green local association" would approve, right?
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