The importance of orientation in photovoltaic systems
The orientation of your photovoltaic system plays a crucial role in its efficiency and energy yield. It determines how much sunlight the modules can capture throughout the day. Traditionally, a south-facing orientation was considered ideal, but east/west orientations also offer advantages, depending on individual requirements and circumstances.
South-facing orientation – Maximum energy yield
With a south-facing orientation, the solar panels are optimally aligned with the sun and can deliver a high energy yield throughout the day. The advantages are:
- Higher overall yields: Peak values are reached particularly during midday hours.
- Perfect for self-consumption: Households with high energy demands at midday benefit particularly.
However, the high energy yield during midday hours can lead to an overload of the system if there is insufficient storage capacity.
East/West orientation – Even distribution
An east/west orientation distributes energy production more evenly throughout the day. The advantages are:
- Ideal for early morning and late evening consumers: Energy is generated in the morning and evening, when consumption is often higher.
- Improved grid relief: More consistent electricity production reduces peak loads in the grid.
The disadvantage is that the overall yield can be somewhat lower than with a south-facing orientation. Nevertheless, this option is often more attractive for households without large storage capacities.
Pitch angle and roof structure
Besides orientation, the tilt angle is also crucial for the yield of your photovoltaic system. A tilt of 30–35° is optimal for effectively utilizing solar radiation. Flat roofs can be flexibly adapted to the desired orientation using mounting systems, while pitched roofs utilize the natural slope of the roof structure.
Taking individual requirements into account
Whether south-facing or east/west-facing – the optimal choice depends on your individual needs. Factors such as daily electricity consumption, roof shape, and potential shading play an important role. Precise planning and expert advice are essential to get the most out of your system.
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Referenced terms and sources
This existing glossary article was reviewed and approved on 14 October 2026. Time-sensitive information still refers to its original publication context unless the article states otherwise. It does not replace installation instructions or confirm compatibility with a particular roof tile model.
Machine-assisted translation. The German version remains available.
Data sheet and installation guideOriginal source