Installation & Sizing3 min read4 views
How to Plan Rooftop Solar Panel Layout for Maximum Sunlight in 2026
Orientation, tilt, shading and string grouping — plan a rooftop layout in 2026 that squeezes the most energy out of every panel you install.
BySolarBazaar Team
Orientation, tilt, shading and string grouping — plan a rooftop layout in 2026 that squeezes the most energy out of every panel you install.
## Orientation and tilt
In Pakistan, panels facing true south capture the most annual energy, with a tilt roughly equal to your latitude (around 25–33°). South-west can be worthwhile if your heaviest loads are in the afternoon.
## Planning the layout
1. Map shadows from parapets, water tanks and neighbouring buildings across the day.
2.
Keep panels out of shade during peak hours (roughly 9am–4pm).
3. Group panels with matching orientation and shading into the same string.
4. Leave walkways for cleaning and maintenance access.
5. Allow airflow behind panels so they run cooler and produce more.
## When a roof won't cooperate
If shading is unavoidable, consider microinverters or optimisers so one shaded panel doesn't drag down the whole string. A good layout often matters more than buying a premium panel brand.
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