Online tool to plan (Walm-) roof

If the hip roof is set, then you have about 2 modules less

Even fewer. The corner tiles, which are shown here as a line, are bulging, fat parts, causing the modules to be mounted somewhat lower or at least with more lateral spacing.

My neighbor has it like that, can gladly post a photo tomorrow.

That was just an example as a template for the TE anyway, because only he has the dimensions of his modules.

I can gladly illustrate it precisely if I have the dimensions.

Gable roof, which can also be built with a high knee wall

A knee wall is not allowed according to our development plan. I have also thought about the storage space: since the floor plan is not that large, ultimately "not that much storage space is lost." A second full floor or upper floor is not permitted according to the development plan, meaning it is only about storage space. Since we can build a basement, I don't see it as that dramatic. Do you see any other disadvantages of a hip roof?

You can easily draw that yourself and then add the modules to the sketch.

Thank you for your sketches. Regarding drawing it myself, it is not clear to me how the width of the area behaves with different roof pitches, how steep the side walls would be, and ultimately how long the ridge would be. However, this is probably not decisive for an estimate of the "number of solar modules." I have drawn it and for the hip roof with a ridge height of 2 meters, I come to 14 panels, with installation on the east/south/west sides. For the gable roof with south-facing orientation, I also come to 14 panels (assumption: 9x8 meter ground plan, panel size: 1.1 x 1.7 m). With an east/west orientation of a gable roof, of course, 14*2 panels would be possible. However, we would then not benefit from the south side, and especially during the transitional periods and in winter, the yields would probably be very low. A disadvantage of installation on three sides would probably be that it becomes somewhat more expensive. It would be great if you could post a photo of the neighboring house. The slope has a 2-degree incline.

You said you want to incline all surfaces the same way? My representation uses the same module dimensions. Is the long side to the south?

Where has my contribution gone? There was a lot of informative content regarding [Satteldach], living space, basement under garden floor, etc.