Blue sky over solar panels in Ireland

Solar Panel Costs and Returns Prices for solar panel installations in Ireland including payback period, electricity generated, carbon footprint reduction and more.

Last Updated: 4th October 2022

What do solar panels cost in 2022?

Typical PV solar installation prices at a glance:
House Size Cost (after SEAI grant) Solar Array Size
2-bed terraced house €5,270 3.28 kWp
(8 x 410w panels)
3-bed semi-detached €5,880 4.1 kWp
(10 x 410w panels)
4-bed detached house €6,770 4.92 kWp
(12 x 410w panels)
6-bed detached house € 8,229 6.56 kWp
(16 x 410w panels)

(Click on the house links above or just scroll down to see full info about each house size)

These guide prices include both the equipment and installation. Adding a standard sized solar storage battery (5.1kWh) would add around €3,600 - €4,000 to the price. This includes the price of the hybrid inverter which is needed to work with the battery.

Lets start with a disclaimer - this is just a rough guide to help you decide if you'd like to have a discussion about installing solar PV panels on your house. Each property is unique, so if solar appeals then we would do a unique quote (for free) after visiting the property. That allows us to do a proper system design and calculate accurate numbers for you.

The numbers here though are realistic for average domestic solar panel installations in Ireland in 2022. We've not rounded down the prices, nor rounded up the production numbers. These represent average installations of household solar PV systems. We hope this helps you in the decision on whether to have that conversation about adding solar panels to your home.

Two-bedroom terraced house Typical solar costs and performance

Here are the solar costs and performance numbers for a typical two-bedroom mid-terrace house in the midlands of Ireland. We've assumed a property like this can fit a 3.28 kWp (kilowatts peak) system on its roof.

Cost to Homeowner: €5,270.00

That's made up of a solar PV system price of €7,454, less the SEAI grant of €2,184

Solar Array size: 3.28 kWp

That's 8 x 410w panels, totaling 15.6 m2, which covers the majority of the south facing roof.

Generation: 2856 kWh / year

The units of electricity generated per year.

Rate of Return on Investment: 19.1%

The rate of return on Investment (RRI) is 19.1%. The system will have paid for itself in 3 years 11 months.

CO2 saved: 994 kg / year

That's the same as 191 trees being planted, or 1 flight from Dublin to New York per year.

Download full example quote for a 2-bed mid terrace house

Use the buttons below to download the full details as a PDF.

Three-bedroom semi-detached house Typical solar costs and performance

Here are the solar costs and performance numbers for a typical three-bedroom semi-detached / end of terrace house in the midlands of Ireland. We've assumed a property like this can fit a 4.1 kWp (kilowatts peak) system on its roof.

Cost to Homeowner: €5,880

That's made up of a solar PV system price of €8,280, less the SEAI grant of €2,400

Solar Array size: 4.1 kWp

That's 10 x 410w panels, totaling 19.5 m2, which covers the majority of the south facing roof.

Generation: 3573 kWh / year

The units of electricity generated per year.

Rate of Return on Investment: 22.1%

The rate of return on Investment (RRI) is 22.1%. The system will have paid for itself in 3 years, 7 months.

CO2 saved: 1,000 kg / year

That's the same as 239 trees being planted, or 1.08 flights from Dublin to New York per year.

Download full example quote for a 3-bed semi-detached house

Use the buttons below to download the full details as a PDF.

Four-bedroom stand-alone house Typical solar costs and performance

Here are the solar costs and performance numbers for a typical four-bedroom stand-alone house in the midlands of Ireland. We've assumed a property like this can fit a 4.92 kWp (kilowatts peak) system on its roof.

Cost to Homeowner: €6,770

That's made up of a solar PV system price of €9,170, less the SEAI grant of €2,400

Solar Array size: 4.92 kWp

That's 12 x 410w panels, totaling 23.4 m2, which covers the majority of the south facing roof.

Generation: 4323 kWh / year

The units of electricity generated per year.

Rate of Return on Investment: 23.7%

The rate of return on Investment (RRI) is 23.7%. The system will have paid for itself in 3 years, 6 months.

CO2 saved: 2000 kg / year

That's the same as 289 trees being planted, or 1.28 flights from Dublin to New York per year.

Download full example quote for a 4-bed stand-alone house

Use the buttons below to download the full details as a PDF.

Six-bedroom stand-alone house Typical solar costs and performance

Here are the solar costs and performance numbers for a typical six-bedroom stand-alone house in the midlands of Ireland. We've assumed a property like this can fit a 6.56 kWp (kilowatts peak) system on its roof.

Cost to Homeowner: €8,229

That's made up of a solar PV system price of €10,629, less the SEAI grant of €2,400

Solar Array size: 6.56 kWp

That's 16 x 410w panels, totaling 31.2 m2, which covers the majority of the south facing roof.

Generation: 5710 kWh / year

The units of electricity generated per year.

Rate of Return on Investment: 25.2%

The rate of return on Investment (RRI) is 25.2%. The system will have paid for itself in 3 years, 6 months.

CO2 saved: 2,000 kg / year

That's the same as 372 trees being planted, or 1.64 flights from Dublin to New York per year.

Download full example quote for a 6-bed stand-alone house

Use the buttons below to download the full details as a PDF.

The Battery Question

The headline numbers assume no battery. But they are a popular addition, and so for each house we have done the full reports both with and without a storage battery.

What does a Solar Storage Battery Cost?

A typical solar storage battery (which can store about 5.1kWh of power) will add around €3,600 - €4,000 to the cost of a PV solar panel installation.

We have done the full proper quotes above both with and without a battery, which shows how it affects things like payback and power usage.

Who would benefit from a battery?

If you are mostly away from home during the day, when your panels produce most of their electricity, then a battery can be a choice worth considering as it stores some of that power for when you return later on. If your home is normally occupied in the day time, then storage is less of a priority.

For all homes they really help smooth peaks and troughs. Solar produces nice steady power, whereas flick the kettle / turn on the oven then suddenly your house's electricity demand has just doubled for a short period of time.

Alternatives to a battery

There are also other ways to make use of excess power generated when you are not about - hot water diverters, overflow to EV car charging, feed in tariff back to the grid (where you sell your excess electricity to the grid) for example. Just get in touch if you'd like to chat through the options and pros and cons of each solution.

Upcoming changes

As things currently stand, for people who are often out during the week days, then a storage battery will more than pay for itself over the lifespan of the system despite increasing the initial outlay.

Feed-in tariff currently being implemented during 2022 in Ireland (see our page about Ireland's New Solar Feed-in Tariffs for more info). Only some of the Irish utility companies have announced their solar feed-in tariff rates for 2022 though. Once they are released they could alter the value benefit of batteries - watch this space.

Want to know more about Solar Storage Batteries?

See our awesome Guide To Solar Storage Batteries in Ireland - Everything you need to know

How we did these calculations

We made some simple base assumptions for these calculations. Please do take the above figures just as a rough guide as there are a lot of assumptions we've made to generate these figures. These are all things we would customise for your home should you wish us to do you a solar PV installation quote.

Location: Midlands of Ireland

The location doesn't make a huge difference to solar output in Ireland, though we do take your exact location into account when doing custom quotes.

House and roof access: simple

We've assumed there's no complexity to accessing the property of roof.

Roof: South facing, average slope (~30°)

If your roof is facing south-east, or south-west, then the production would be about 5% lower. If you are facing east or west, then production would be about 20% lower. Please note though there are some benefits to east / west facing solar panels as their production matches standard consumption patterns - the panels generate in the morning and evening, when more electricity tends to be consumed, so you might not need a battery and might get to use more of your electricity produced. Just contact us if you'd like to discuss such.

We'd not recommend PV solar in Ireland if your roof faces north.

Shading: minimal

Shading, from surrounding obstacles such as trees in neighbouring properties, or large chimneys on your house, can impact solar production. We have assumed there is minimal shading for these numbers.

Electricity Consumption: standard

We have assumed an average level of electricity consumption. We've also assumed a fairly standard pattern, where there is only some usage during weekdays but the property is occupied most weekend days.

Hot-water diverter: none

Another use of excess electricity is to heat your hot water via an immersion heater. Again we've not included this, but if you opt for it you'll likely get better value from your solar electricity system.

Electricity Supplier and Tariff: Energia Urban Smart Meter

We have calculated using the Energia Urban Smart Meter tariff. This is a great rate for those with solar due to the high feed-in tariff payments they give you.

Feed-in tariff: Energia - 18 cents / kWh

Feed-in tariffs are currently being implemented into Ireland in 2022. Officially they are called the Clean Export Guarantee (CEG) tariff . This is where you get paid for any excess electricity that you export back out to the national grid.

Each electricity supplier sets their own rates, with Flogas (20 cents / kWh) and Energia (18 cents / kWh ) being the best so far.

Find out more about Solar Feed-in Tariffs in Ireland (CEG tariff).

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