Modules and mounting
The modules sit on a mounting system matched to the roof covering. Tile, slate, trapezoidal sheet and flat roofs each need their own brackets and their own cable routes.
Geilenkirchen, Heinsberg district Jansen GmbH Gebäudetechnik
Photovoltaics in Geilenkirchen, planned around the path of the sun.
We look at how the light travels across your roof and put the modules where they catch the longest part of the day. Planning, mounting and connection from one company.
First light
How the light runs across your roof
No two roofs are alike. Between sunrise and sunset the shadow of dormers, chimneys, aerials, trees and the house next door travels across the surface. Knowing that path changes where the modules go.
So nothing begins with a catalogue. It begins with an appointment at your house. We measure the pitch, note the orientation, record where the shade sits through the day and look at the meter cabinet. Only then does a layout take shape that suits this building.
Jansen GmbH Gebäudetechnik has its registered office in Gangelt. The managing director is Lennard Jansen, Elektrotechnikermeister (erworben in Deutschland).
A system is not made good on paper. It is made good on the roof.
Late morning
Four stations through the day
The sun stands in the east in the morning, in the south at midday and in the west in the evening. Where your modules sit decides when they work and when your household actually benefits.
East
Morning light
Surfaces facing east get going early, as the day starts inside the house. For households where a lot happens in the morning, this is the important side.
South
Midday height
At noon the sun stands at its highest. South facing surfaces work hardest then, and the surplus wants somewhere sensible to go rather than simply running into the grid.
West
Afternoon
Modules tilted west carry into the late afternoon. The washing machine, the cooker and a car on the wallbox all sit inside that window.
After that
Evening hour
What is left over during the day can be carried into the evening by a battery. Whether that is worth it for you depends on how you use electricity, not on a rule of thumb.
Midday
Tell us where your roof is
Write a few lines about the building and what you have in mind. We will come back to you and arrange a visit. We need a telephone number and a message. An email address is optional.
- We come back to you personally.
- The survey and the advice happen at your building.
- You receive the layout and the quotation in writing.
Highest point
What a system is made of
Photovoltaics is more than what you see from the pavement. These parts are planned together, because each of them settles something about the others.
Inverter
The inverter turns the direct current from the modules into the alternating current of your house. It wants to hang cool, dry and within reach, not behind the clutter in the loft.
Meter position and connection
The meter cabinet has to be able to take the feed in. We look at it before anything is ordered, and we handle the registration with the grid operator.
Battery storage
A battery is a possibility, not a requirement. It makes sense where electricity is really used in the evening and at night, and it wants to be planned in from the start.
Lightning and surge protection
Whatever goes on the roof belongs in the protection concept of the house. Surge protection on the direct current side and in the meter cabinet is part of the plan, not a later addition.
Wallbox and heat pump
If you expect to charge a car or heat with a heat pump in a few years, have the cable routes allowed for now. That is the cheapest moment to do it.
Afternoon
Light, surface, reflection
Six photographs on the subject: how light falls on module surfaces, what the cell underneath shows, and how the sky is mirrored in it.
If you want to know how the light stands on your roof, we will look at it together.
Send an enquiryLate afternoon
How a job runs
From the first message to the handover. At every point you know what happens next and who does it.
You get in touch
You write to us or call. We ask about the building, the roof and what you have in mind.
Survey at the building
We look at the covering, the pitch, the orientation, the shade and the meter cabinet, and we measure whatever has to be measured.
Layout and quotation
You receive a proposal showing which modules go where, together with the equipment indoors and a written quotation.
Registration with the grid operator
Registering the system is part of the job. You do not have to deal with it yourself.
Building and wiring
Mounting system, modules, cable routes, inverter and meter position. At the end the cabinet is closed again and the site is cleared.
Commissioning
We switch on, test through and show you on your own equipment how to read what the system is doing.
Evening light
Where we work
Our registered office is in Gangelt. We welcome enquiries from Geilenkirchen, from the town centre and from its quarters alike.
- Bauchem
- Beeck
- Gillrath
- Grotenrath
- Hünshoven
- Immendorf
- Lindern
- Prummern
- Süggerath
- Teveren
- Tripsrath
- Waurichen
- Würm
If your house sits just off this list, ask anyway.
Send an enquiryEvening
What gets asked at the end of the day
Answers to questions about a photovoltaic system on your own roof.
That depends on orientation, pitch, shade and when electricity is actually used in the house. Blanket promises do not help you. We look at your roof and work with your circumstances instead of a rule of thumb.
Not necessarily. But if the covering is due for renewal in the foreseeable future, the moment before mounting is the cheapest one. We tell you at the survey what we see.
A battery is a possibility, not a requirement. It makes sense where a lot of electricity is used in the evening and at night. What matters is that the system is prepared for it from the start.
We do that with the grid operator. The registration is part of the job.
Yes. If that is the plan, say so at the first appointment and we will allow for the cable routes and the meter position accordingly.
Jansen GmbH Gebäudetechnik of Gangelt. The managing director is Lennard Jansen, Elektrotechnikermeister (erworben in Deutschland). The supervisory authority is the Handwerkskammer Aachen.
Tell us where your building is and we will let you know whether we can take the job on.
After sunset
The direct way
Call or write. Both reach the same people, and both lead to the same next step: a time at your roof.
- Telephone
- +49 2454 938644
- Fax
- +49 2454 938645
- Registered office
- Geilenkirchener Straße 65 a
52538 Gangelt