ᐅ Photovoltaic Consultation: 45° Hipped Roof Facing North/South

Created on: 17 Apr 2025 15:06
C
CC35BS38
Hello everyone,

I am new to photovoltaics and have a few general questions: The building is oriented north/south and has a hip roof with a 45° pitch. I used PVGIS and got about 540 kWh/kW peak for the north side and 1180 kWh/kW peak for the south side.
Is it common to fully cover the north side under these conditions? Does it provide any base load during winter? I suppose this also depends on the additional costs of installing panels on the north side. I am currently looking for companies and will share the prices here.
With current prices, a battery seems to make sense. Is there a magic price threshold in €/kWh and guidance on how large to size the battery?

Thank you for your help.
H
hanghaus2023
20 Apr 2025 12:53
Does your main electrical connection support 2 electric car charging stations? You can install about 10-12 kWp on the roof. In this case, usually only one charging station will work. Otherwise, you will draw power from the grid.
Z
Zubi123
20 Apr 2025 12:54
For east and west, smaller modules can also be considered in detail. Solarfabrik offers the S5 with dimensions of 1.65 x 0.88 meters (5.41 x 2.89 feet); you can connect two of these in parallel on each side and then connect all four to one micro-inverter. It's a bit of a creative approach, but it works well for capturing the first and last hour of sunlight each day.
Nida35a20 Apr 2025 12:55
We have a heat pump and no electric car, with one-third grid consumption,
6000 kWh total energy use
2000 kWh grid consumption
Nida35a20 Apr 2025 12:59
Solar roof tiles don’t work for east and west orientations?
H
hanghaus2023
20 Apr 2025 13:19
I placed my modules on the roof and roughly estimated its dimensions. The antenna and the small window don’t make sense on a photovoltaic roof.

Schematic roof plan with blue roof area and rectangular roof tiles


You can even fit 30 modules there.
Nida35a schrieb:

Are no solar roof tiles possible on the east and west sides?

The house already has a roof.
Nida35a schrieb:

We have a heat pump without an electric car, still using a third grid power,
6000 kWh consumption
2000 kWh grid power
With storage?
Nida35a20 Apr 2025 15:34
hanghaus2023 schrieb:

With a battery storage system?
Yes,
13.2 kW heat pump and photovoltaic system,
9.6 kWh battery storage,
all connected through a bidirectional meter

Similar topics