Introduction to Solarcells (Solartherm)

A considerable portion of the energy consumption of an average private household is used for hot-water preparation.
By means of a solar power cells arrangement, about 60% of the heat can be produced free of charge. In summer there is hot water virtually for “free”, emissions of CO2 and investment wear are reduced by the frequent short turning of the conventional heating.
The arrangement consists of solar cells on the roof, the house wall or in the garden, the heat-dammed tube system with a pump, a hot-water memory with heat exchanger as well as an additional backup system if the solar-energy is not sufficient.
The solar power cells works with the idea of direct conversion of sunlight into heat. The natural sun-rays are gathered by the collector (black absorber surface) and heat up a carrier liquid. The solar cell is isolated by insulating materials or vacuum and a special coating against heat loss.
In a heat exchanger in the solar memory module the heat is delivered to the water system.
Today the arrangements whioch are mostly delivered by solar cell manufacturer, have technically matured to the point that they work free of emissions.
Ideal for the installation is a roof surface facing south (roof inclination 30-50 °), but also in the garden, on a flat roof or on the facade mounting would be possible.

Construction types:
a. With flat solar collectors
the absorber surface is arranged in level with the conduits in which the carrier liquid circulates. Absorbers and conduits are inserted in an isolated chamber which has the upper side covered with a layer of glass. There originates a heat “traffic jam”, a greenhouse effect.

b. With a vacuum-tube solar collector
the absorbers are in a glass tube, as the name already suggest, under vacuum. Several glass tubes side by side form the collector. The vacuum tubes can be turned and with it unfavorable roof adjustments or inclinations be readjusted.
These collectors are a little more expensive than flat solar panels; but they work with a higher efficiency, because the heat losses are reduced by the vacuum.

c. Capillary tube solar collector technology.
This design is especially suitable horizontal and therefore it is ideal for facades, roof and balcony.
Capillary tubes in the distance of 25 mms carry off heat in the absorber metal into the heating system. A noble gas content provides for a good insulation and prevents heat absorption and heat losses. The advantages are:
Short response time, energy yield already with low solar irradiation and higher yield per square meter.

Green Tips:

Solar cell modules normally are free for approval as a construction rule. Special regulations and bylaws exist from country to country.

The usable solar energy is dependent on the location, the possible adjustment and the inclination corner.

Depending on usage and utilization an arrangement can cover the power demand for hot water in 3-4 person households in summer to 100% and in the transition period to more than 50% with approx. 6 square meters of solarcell surface.

A new Generation of Sollarcells are on the way!!!
Watch this video below.

But think about homemade solarcells.
Watch this video below to know how to make solarcell.

If you like to know more about the homemade system I offer, use the links below for read my reviews about it, or click directly on the products in the sidebar here.

For How to make Solar Cells and windmills
For a similar system:
Energy by Earth

If you are interest to other Why Go Green – Energy Sytems, here are the links to other Energy Sources:
Why Go Green – Wind Power
Why Go Green – Geotherm Energy
Why Go Green – Photovoltaic System
Why Go Green – Biogas Technology
Why Go Green – CHP=Compined Heat-Power Plant
Why Go Green – Biomass Energy Sources