The Irish solar savings calculator
We're building an interactive calculator that estimates your generation, savings and payback from your Eircode, roof and electricity bill. It'll live right here.
Get a real quote insteadQuick rule-of-thumb figures while you wait
| System | Typical annual generation | Guide price (2026, after grant) |
|---|---|---|
| 3 kWp (~7 panels) | 2,400–2,900 kWh | €4,500–€6,000 |
| 4 kWp (~10 panels) | 3,200–3,800 kWh | €5,000–€7,000 |
| 6 kWp (~14 panels) | 4,800–5,700 kWh | €7,500–€10,000 |
An average Irish home uses around 4,200 kWh a year, and unused generation is exported and paid on your bill. The most accurate number, though, comes from an installer looking at your actual roof and usage — which is exactly what a free quote gives you.