ᐅ Photovoltaic Consultation: 45° Hipped Roof Facing North/South
Created on: 17 Apr 2025 15:06
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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.
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
hanghaus202320 Apr 2025 12:53Does 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.
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.
H
hanghaus202320 Apr 2025 13:19I 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.

You can even fit 30 modules there.
The house already has a roof.
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:With storage?
We have a heat pump without an electric car, still using a third grid power,
6000 kWh consumption
2000 kWh grid power
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
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