What is Solar Array?
A group of solar panels connected together in a system, mounted on a roof or ground frame.
Quick Answer
A typical Irish residential solar array consists of 8–16 panels arranged on a south-facing roof. Roof space, shading, and planning rules determine the maximum array size. For semi-detached and terraced homes, arrays are often limited to 10–12 panels due to available roof area.
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
Solar Array Explained
A solar array is a collection of solar panels wired together to function as a single electricity-generating unit. Panels in an array can be connected in series (to increase voltage) or parallel (to increase current), depending on the inverter requirements. The term 'array' typically refers to all the panels in a solar installation, whether mounted on a roof, ground frame, or other structure. Array size is measured in kWp — the combined peak output of all panels.
How Does Solar Array Work in Ireland?
A typical Irish residential solar array consists of 8–16 panels arranged on a south-facing roof. Roof space, shading, and planning rules determine the maximum array size. For semi-detached and terraced homes, arrays are often limited to 10–12 panels due to available roof area.
Frequently Asked Questions
How many panels are in a typical solar array in Ireland?
Most Irish residential arrays have 8–16 panels (3.2–6.5kWp). The SEAI grant covers arrays up to 4kWp, which is typically 10 panels of 400W each.
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John Rooney is the founder of Solar Info and has been covering the Irish solar energy market since 2023. He fact-checks all content against official SEAI data and maintains relationships with SEAI-registered installers across Ireland.