Solar panel prices by house size
A 4 bed detached house in Ireland usually takes 10–12 panels and costs €6,500–€8,100 after the SEAI grant. Smaller and larger homes are in the table below.
Price by house type
| House type | Typical use | Panels | Price before grant | Price after grant | Saving per year |
|---|---|---|---|---|---|
| 1–2 bed apartment | 2,500 kWh/yr | 6 | €6,500–€7,300 | €4,980–€5,780 | €584 |
| 3 bed semi-detached | 3,500–4,500 kWh/yr | 8–10 | €7,500–€9,000 | €5,800–€7,200 | €787–€991 |
| 4 bed detached | 4,500–6,000 kWh/yr | 10–12 | €8,300–€9,900 | €6,500–€8,100 | €991–€1,194 |
| 5+ bed / large detached | 6,000–8,000+ kWh/yr | 14–20 | €10,500–€15,500 | €8,700–€13,700 | €1,397–€1,981 |
Bedrooms are only a starting point
The number of bedrooms is a rough guide. What sets the right system is how much electricity the home uses and how much usable roof it has. A 3 bed house with an electric car or a heat pump can need a larger system than a 5 bed house without either.
If you know your yearly kWh from your bill, the price calculator gives a closer figure. Roof direction and shade matter too: see the guide to solar panels in Ireland.