ᐅ New single-family home with propane gas – is it possible without photovoltaic or solar panels?
Created on: 16 Jul 2020 19:07
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pagoni2020
Hello everyone,
for our building project, a 150 sqm (1,615 sq ft) single-family home for two people in Saxony, I am researching heating options in advance. Geothermal energy, heat pumps, and so on are somewhat familiar to me by now, but I am now wondering about heating with liquefied petroleum gas (LPG).
At the fully developed building plot, everything is connected except for a gas supply line. A few new buildings nearby have obviously chosen LPG, which is still relatively common in new construction here in the eastern part of our country (unlike in my former home region of Baden-Württemberg).
We will probably have lower heating demand since it will mostly be just the two of us at home; during the day, only one or sometimes nobody will be there.
From what I have read and hopefully understood correctly, photovoltaic systems alone usually make little sense; I had solar panels on my old house, which was nice, but whether it paid off over 10 years... I have no idea.
The general contractor will probably offer an air-to-water heat pump as standard, which I will definitely look into, as well as geothermal energy.
Still, I am also considering LPG because I have a large plot (to bury the tank) and the technology is reliable and well-proven.
With all the things like KfW funding, etc., I can’t seem to find any information about whether and what I must use in addition when choosing LPG.
So my question is:
Do I have to install an additional energy source if I use LPG?
Are there any sensible alternatives or ideas for using LPG?
for our building project, a 150 sqm (1,615 sq ft) single-family home for two people in Saxony, I am researching heating options in advance. Geothermal energy, heat pumps, and so on are somewhat familiar to me by now, but I am now wondering about heating with liquefied petroleum gas (LPG).
At the fully developed building plot, everything is connected except for a gas supply line. A few new buildings nearby have obviously chosen LPG, which is still relatively common in new construction here in the eastern part of our country (unlike in my former home region of Baden-Württemberg).
We will probably have lower heating demand since it will mostly be just the two of us at home; during the day, only one or sometimes nobody will be there.
From what I have read and hopefully understood correctly, photovoltaic systems alone usually make little sense; I had solar panels on my old house, which was nice, but whether it paid off over 10 years... I have no idea.
The general contractor will probably offer an air-to-water heat pump as standard, which I will definitely look into, as well as geothermal energy.
Still, I am also considering LPG because I have a large plot (to bury the tank) and the technology is reliable and well-proven.
With all the things like KfW funding, etc., I can’t seem to find any information about whether and what I must use in addition when choosing LPG.
So my question is:
Do I have to install an additional energy source if I use LPG?
Are there any sensible alternatives or ideas for using LPG?
You can also install a very modern system from Homepowersolution HPS,
which measures about 2m x 0.8m x 0.8m (6.6ft x 2.6ft x 2.6ft) and is located in the utility room.
On the roof, photovoltaic panels generate electricity, which charges a battery and supplies power. The electricity is also used for electrolysis to produce hydrogen, which is stored in compressed gas cylinders. The hydrogen is then converted back into electricity using fuel cells. The system can cover energy needs throughout the year with the hydrogen, while also providing heating and functioning as a ventilation system.
It is very modern and complex, currently in market introduction, and costs around €55,000.
A simpler option would be Solar Cloud.
Best regards,
Nida35a
which measures about 2m x 0.8m x 0.8m (6.6ft x 2.6ft x 2.6ft) and is located in the utility room.
On the roof, photovoltaic panels generate electricity, which charges a battery and supplies power. The electricity is also used for electrolysis to produce hydrogen, which is stored in compressed gas cylinders. The hydrogen is then converted back into electricity using fuel cells. The system can cover energy needs throughout the year with the hydrogen, while also providing heating and functioning as a ventilation system.
It is very modern and complex, currently in market introduction, and costs around €55,000.
A simpler option would be Solar Cloud.
Best regards,
Nida35a
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pagoni202016 Jul 2020 23:55Nida35a schrieb:
You can also install a very modern system from Homepowersolution HPS,
it measures about 2m x 0.8m x 0.8m (6.6ft x 2.6ft x 2.6ft) and is located in the utility room.
On the roof, photovoltaic panels generate electricity that charges a battery, powers consumption, and uses electrolysis to produce hydrogen (H2), which is stored in compressed gas cylinders. The hydrogen is then converted back into electricity via fuel cells. This system covers energy needs with hydrogen throughout the year, provides heating, and also functions as a ventilation system.
Very advanced, complex, currently entering the market, and the unit costs around €55,000.
A simpler option would be Solar Cloud.
Regards, Nida Thank you very much,
I have probably been out of the loop too long, so these concepts are still quite unfamiliar to me. But they sound very exciting. I’ll look into whether there is more information available about running costs, user experiences, and so on. Same for Solar Cloud... that is also completely new to me...
If I had complete freedom to choose and gas had no initial advantage because there is no existing pipeline, I would opt for a heat pump, as I believe it offers more independence than gas. Electricity still needs to be supplied, but at least part of it can be self-generated. There is also the environmental aspect to consider. I also can’t really imagine that installing a gas tank plus regularly having gas delivered is cheaper than installing a heat pump.
But I don’t want to start a fundamental debate here, since the question is actually something else, sorry! As far as I’ve understood so far, solar thermal systems are needed when using gas.
But I don’t want to start a fundamental debate here, since the question is actually something else, sorry! As far as I’ve understood so far, solar thermal systems are needed when using gas.
Our air-source heat pump has now been running for over a year, with all electric heating elements turned off. The calculated consumption is 4100 kWh per year according to the energy certificate, but after a mild winter, the actual usage was 3100 kWh per year. In addition, household electricity consumption is about 3000 kWh per year, including regular sauna use. We are now considering photovoltaic panels combined with a power cloud. This was one reason to avoid gas, as gas cannot be self-generated. With electric systems, everything is currently possible.
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pagoni202017 Jul 2020 09:30Nida35a schrieb:
Our air source heat pump has now been running for over a year,
all electric heating elements are off. Calculated consumption is 4100 kWh/year according to the energy certificate, but after a mild winter the actual consumption was 3100 kWh/year, plus 3000 kWh household electricity (including regular sauna use).
Now we are considering photovoltaic panels combined with a power storage system.
That was one reason for choosing electric over gas, since gas can never be self-generated, but with electricity you can do everything at the moment. I’m not very familiar with consumption values, among other things, but isn’t 3100 kWh alone for operating the heat pump (heating/hot water), i.e., replacing gas or oil, somewhat high? That would mean the heat pump didn’t actually provide that much energy, right?
Are there two of you living in the house?
Yes, there are two of us, living in a 125m2 (1,345 sq ft) bungalow, roughly a KfW40-level house.
A gas heating system would have been underused and only cost us basic fees.
But now we have consumption data for our house and can continue planning.
It might also be cost-effective to just keep heating and buy the cheapest eco-friendly bio heat pump electricity in returnable bottles each year.
A gas heating system would have been underused and only cost us basic fees.
But now we have consumption data for our house and can continue planning.
It might also be cost-effective to just keep heating and buy the cheapest eco-friendly bio heat pump electricity in returnable bottles each year.
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