SoLar compression, or [How to compare the effectiveness of solar designs.]

Solar heat generating systems, come in all shapes and sizes and to compare one design to any other seems almost like an impossible task.

There are no standards, no benchmark tests and no guidelines to follow. The reviews are vague and often depend on some individual testing. Customer satisfaction merely expressed by a number of stars.

But which design is really effective, under what conditions and why?

What is the magic number?

On a geometrical level, the answer is surprisingly simple;

Asun [m2] / Vheat [l] = SoLcom [unite less]

But what does that mean?

Imagine a square glass window of exactly 1 square meter, sitting like a lid on top of a shallow black box with exactly the same internal size. Imagine then, that this window is perfectly facing the sun and let’s 1 square meter of sunlight go through, hitting the inside of the box and heating the air-volume within.

If this box then is only 1cm deep, the volume of air it contains, is exactly 10 litre.

1m2 / 10l = 0.1 SoLar compression.

1_to1 01

Every solar heat generating system consists of the same two main elements.

  • the collector, gathering as much sun-light as possible and
  • the receptor, which converts the collected energy into heat

Collectors being measured as an area, whilst receptors are always described as a heated volume.

It is clear then, that the effectiveness of any solar heat generating system is largely defined by the relationship of those two.

The more sun-shine collecting area is available to any system and the smaller the volume of the receptor converting the sunshine into usable heat, the higher is the efficiency of the entire system.

This relationship is the unit less factor of the SoLar compression [SoLcom] and can be calculated by dividing the active sunshine Area [Asun in m2] by the heated receptor Volume [Vheat in litre].

Asun [m2] / Vheat [l] = SoLcom [unite less]

This factor can be calculated for any SoLar heat generating system and is completely power independent.

It does not use the SoLar input-power of a system, nor does it describe the quality of any thermal insulation. It simply defines, the geometrical relationship of the active SoLar area to a specific heated volume.

simplified linear systems

In the next instalment SoLenium technology will discuss the practical implications of the SoLar compression factor, as well as discuss it’s specific advantages and uses.

So, if you want to learn more about how to take advantage of calculating the SoLar factor of any SoLar oven or other SoLar heat generating system, stay tuned!

What are we all still waiting for? – Let’s get SoLar!

[No contract, no obligations and no strings attached, yet the biggest possible return]

The ‘save the planet’ argument is rather stale, the ’feel good factor’ simply not enough for many people and the economics are far too complicated.

But have a look at this little Excel-sheet and you might think again.

It is the best ‘no harm done to other people’ investment one can possibly make. A small photovoltaic set-up for self-consumption, connected to the grid with no need for batteries or binding feed-in contracts, does not only give you your money back in just a couple of years, but is also the ultimate money saver without having to compromise on living standards when it comes to the use of energy.

It does not generate money, by pulling it out of other people’s pockets, it simply creates something for free, which you would otherwise have to pay for.

But still, far too few people realize even today, how quickly such a small PV-installation will pay for itself, even without cashing in money via a fixed feed-in tariff.

This little amortisation table demonstrates this quite graphically and can be understood by everyone.

Just download the attached Excel-file, enter your personalized system information and lean back to be surprised. It’s that fast!

[The below sample just gives you an example on the return here in the UK.]


After only seven years, you start to earn real savings.

If you want to know more about this and other such things, SoLenium-technology will keep you posted. Just keep on reading!


You will find the download file here. — —


[Deutsche Übersetzung]

Worauf warten wir denn eigentlich noch? – Einfach mal SoLar!

[Kein Vertrag, keine Verpflichtungen, nichts Kleingedrucktes und dennoch den größten möglichen Gewinn]

Den ‚Planeten zu retten‘ ist als Argument schon abgegriffen, das ‘bessere Gefühl‘ den Meisten längst nicht mehr genug und die Ökonomie des Ganzen, leider viel zu kompliziert.

Doch schau Dir mal kurz diese Tabelle an und lass Dich überzeugen.

Es ist die beste Investition die man nur machen kann und ganz ohne jede ‘Ausnutzung anderer Leute’. Eine kleine Photovoltaikanlage, zum Eigenverbrauch und mit Netzanbindung braucht weder Batterien noch einen verpflichtenden Vertrag, man bekommt aber schon nach wenigen Jahren sein ganzes Geld wieder zurück und kann sogar noch gewaltig Kosten einsparen ohne sich beim Energieverbrauch einschränken zu müssen.

Es generiert jedoch nicht etwa Geld aus anderer Leute Taschen, sondern produziert vielmehr etwas völlig umsonst, für das man ansonsten hätte zahlen müssen.

Leider wissen immer noch viel zu wenige Menschen, wie schnell sich solch eine kleine PV-Anlage, auch ohne amtlichen Einspeisevertrag ganz von selbst finanziert.

Diese kleine Amortisationstabelle veranschaulicht dies auf eindrucksvolle Weise und ist ganz einfach zu lesen.

Einfach nur die angehängte Excel-Datei herunter laden, die eigenen Anlagenwerte eingeben und sich davon überraschen lassen, wie schnell so etwas geht.

[das nachfolgende Beispiel spiegelt eine reale Situation hier in Deutschland wieder]


Nach nur vier Jahren fängt man bereits an, mit Geldsparen gut zu verdienen.

Wenn Sie mehr über diese oder andere Sachen erfahren möchten, SoLenium-technology wird sie gern auf dem Laufenden halten. Einfach nur weiter lesen!


Die Datei können Sie hier herunter laden — —