ᐅ Is investing in a solar power system worth it? Any experiences?
Created on: 20 Feb 2009 08:07
L
Lily
Hello dear forum,
we are considering having a solar system installed on the roof, with costs of about 6000 euros. Now we are wondering if we will ever be able to recoup that investment. Does the system even last that long?
Regards
we are considering having a solar system installed on the roof, with costs of about 6000 euros. Now we are wondering if we will ever be able to recoup that investment. Does the system even last that long?
Regards
Hello bangolo
Neither a heat pump, pellet heating system, nor condensing boiler is capable of that.
A heat pump does not burn any fuel.
In addition, an air source or collector heat pump primarily uses solar energy. So these would also be considered solar systems.
(usually about 0.063 watts/m² through terrestrial heat flow)
Only at around 10 m (33 ft) depth is the annual average temperature of approximately 8.3°C (47°F) constant.
Geothermal energy is only utilized with ground probes (geothermal boreholes).
Best regards
Neither a heat pump, pellet heating system, nor condensing boiler is capable of that.
A heat pump does not burn any fuel.
In addition, an air source or collector heat pump primarily uses solar energy. So these would also be considered solar systems.
(usually about 0.063 watts/m² through terrestrial heat flow)
Only at around 10 m (33 ft) depth is the annual average temperature of approximately 8.3°C (47°F) constant.
Geothermal energy is only utilized with ground probes (geothermal boreholes).
Best regards
Hello parcus,
let’s put it this way: only solar systems and similar installations do not use other energy sources for heat generation, whether electricity, gas, or whatever else. However, the question should theoretically always be asked: what is the energy share required to produce the solar system itself? For the average consumer, the main concern is almost always how much money they can save. Environmental protection is usually the second question.
What do you mean by air or collector heat pumps, air-to-water heat pumps, or ground source heat pumps? They use regular electricity or possibly green electricity, but that comes at a cost.
Best regards
let’s put it this way: only solar systems and similar installations do not use other energy sources for heat generation, whether electricity, gas, or whatever else. However, the question should theoretically always be asked: what is the energy share required to produce the solar system itself? For the average consumer, the main concern is almost always how much money they can save. Environmental protection is usually the second question.
What do you mean by air or collector heat pumps, air-to-water heat pumps, or ground source heat pumps? They use regular electricity or possibly green electricity, but that comes at a cost.
Best regards
Hi bangolo,
What do you mean by air or collector heat pumps, air/water heat pumps, or ground source heat pumps? They use regular electricity or maybe green electricity, but that costs money.
The energy sources are the same: primarily the sun, secondarily electricity.
(Thermosiphon systems aside, as they are not very practical in our latitudes)
Best regards
What do you mean by air or collector heat pumps, air/water heat pumps, or ground source heat pumps? They use regular electricity or maybe green electricity, but that costs money.
The energy sources are the same: primarily the sun, secondarily electricity.
(Thermosiphon systems aside, as they are not very practical in our latitudes)
Best regards
Hello Parcus,
why does a thermal solar system need electricity? If we ignore pumps and drives as secondary energy, what else would it be for?
I always think it's quite difficult to say. Such calculations and questions like "will a solar system benefit me" can only be analyzed based on a specific building project.
Of course, everyone recommends something different. I believe the major issue lies in the renovation of older buildings. Homeowners want to install state-of-the-art heating systems but have no external wall insulation and windows with heat transfer coefficients above 2, and that simply doesn’t work.
Best regards,
Bangolo
why does a thermal solar system need electricity? If we ignore pumps and drives as secondary energy, what else would it be for?
I always think it's quite difficult to say. Such calculations and questions like "will a solar system benefit me" can only be analyzed based on a specific building project.
Of course, everyone recommends something different. I believe the major issue lies in the renovation of older buildings. Homeowners want to install state-of-the-art heating systems but have no external wall insulation and windows with heat transfer coefficients above 2, and that simply doesn’t work.
Best regards,
Bangolo
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