What is the Price of 10KW Solar System in Ireland?

Solar prices move around a bit in Ireland, so the best approach is to think in ranges, then get a clearer figure with a site survey and a written quote.

A 10kW solar PV system in Ireland is commonly priced at €10,000 to €20,000, depending on the equipment chosen and the complexity of the install. This is a larger home setup that typically includes the panels, inverter and full installation.

Moreover, If you’re eligible, you can also apply for the SEAI solar PV grant (up to €1,800), which can reduce the overall cost.

If you want a quick ballpark based on your own usage and Eircode, the solar calculator is a useful starting point, and it still leaves room to customise the design properly once the site is assessed.

What Do You Mean By “10kW” In Ireland?

You’ll see “10kW” used in a few ways online. In solar terms, you’ll often hear kWp (kilowatt-peak) for the panel array size, while kW can also refer to inverter output.

In plain language: it’s a “big enough” system that you should match it to your usage, not just your roof space. If the system is oversized for your daytime demand, you may end up exporting a lot of power instead of using it in the house.

That’s not automatically bad, but it changes the maths.

Who Typically Buys A 10kW Solar System?

A 10kW-sized system tends to suit:

• Larger households with higher electricity usage
• Homes with an EV (or two) where charging is planned around solar production
• People at home during the day (home office, shift work, young kids)
• Homes moving loads from gas/oil to electricity over time (hot water control, induction cooking)
• Small commercial sites with steady daytime use

If your electricity usage is average and most of the house is empty from 9–5, you might still install a large system, but you’ll want to plan how you’ll use the generation (and whether a battery is worth it). Going Solar’s battery storage guide is useful here because it frames the decision around real evening use, not wishful thinking.

What’s Included In The Price Of A 10kW Solar System?

Quotes vary, but most supply-and-install packages cover:

• Solar panels (the array on the roof or ground mount)
• Inverter (string inverter, hybrid inverter, or microinverters depending on design)
• Mounting system and roof fixing kit
• Cabling, isolators, and protections
• Monitoring/app setup
• Labour, commissioning, and documentation
• Electrical works to connect into your existing system

Then there are “maybe” items that can add to the figure:

• Scaffolding (almost always required, but size/access changes cost)
• Upgrades at the consumer unit or earthing changes
• Bird-proofing mesh
• A hot water diverter
• Battery storage and changeover/back-up hardware

Why Can Two 10kW Quotes Be So Far Apart?

It’s usually not one big thing, it’s a few small ones stacking up.

Roof Access And Scaffolding

A simple two-storey semi with easy access is one thing. A more complex roofline, tighter side access, or a three-storey home can mean extra scaffolding time and more labour.

If you’re not sure your roof is ready, this roof checklist is worth a quick read before anyone arrives to quote. It helps you spot issues early, like older tiles, shading, or awkward roof obstructions, and you’ll get more accurate quotes because of it.

Panel And Inverter Spec

Panels are not all the same, and inverters are not all the same. Some quotes are built around premium kit, longer warranties, or monitoring features. Others are a more basic spec.

This is why “compare quotes” can be misleading unless you line up the same panel wattage, inverter type, warranties, and what’s actually included in the install.

Battery Or No Battery

Adding a battery can lift the upfront spend, but it can also increase how much of your own solar you use in the evening. The “right” answer depends on your pattern of use.

If you’re mostly out during the day, a battery can make sense. If you’re at home all day and already using most of what you generate, you might keep it simpler and skip it, or go for a smaller battery.

Metering, Export, And Your Electricity Supplier

If you export spare electricity, you can be paid under the Clean Export Guarantee. The rate depends on your electricity supplier, so it’s worth checking what you’re on before you decide how much exporting you’re happy with.

If you export spare electricity, you can get paid for it through the Clean Export Guarantee (CEG). What you get paid depends on your electricity supplier, so it’s worth checking the export rate on your plan before you assume exporting will cover a big chunk of your costs. If you want a simple explanation of how it works in Ireland, the Citizens Information guide to microgeneration lays out what to expect and what to ask your supplier, which helps when you’re comparing quotes and system sizes.

How Do Grants And VAT Affect A 10kW Solar System Price?

This is where a lot of Irish homeowners get mixed up, so here’s the straight version.

SEAI Domestic Solar PV Grant

There is a domestic solar PV grant, but it’s capped. Even if you install a larger system, you won’t get an unlimited grant.

Also, not every home qualifies. Your installer should talk you through eligibility before any work starts, and the grant application has to be in place before install day.

VAT On Domestic Solar Supply-And-Install

Domestic solar supply-and-install has had a 0% VAT treatment in recent years, but it hinges on the work being supplied and installed as part of the same contract (rather than buying panels separately and hiring someone else to fit them).

If you want the VAT side explained with Irish examples, this VAT guide for solar panels in Ireland clears up the common edge cases, including what tends to cause confusion on invoices.

Simple Cost Breakdown (So You Know What You’re Paying For)

When you get a quote for a 10kW system, ask the installer to break it out like this:

• Panels and mounting: what model, wattage, and how many panels
• Inverter setup: string vs hybrid vs microinverters, and why that choice suits your roof
• Scaffolding and access: what’s included, and how long it’s expected to take
• Electrical works: any upgrades needed at board/earthing level
• Monitoring and handover: what app, what training, what documents you receive
• Warranty terms: product warranties and installer workmanship cover (in writing)

If you get that level of detail, you’ll find it far easier to compare two quotes properly.

How To Get An Accurate Price For Your Home

A good quote is based on your actual usage and your site details, not a guess.

Here’s the quickest way to get there:

1. Pull a recent electricity bill and note your annual kWh usage.
2. Think about what’s changing soon (EV, more home working, heat pump later on).
3. Use a calculator to get a sensible starting point, then confirm with a survey.

If you want to understand what inputs actually change the estimate, the solar calculator savings guide shows what matters (and what doesn’t), so you’re not comparing apples and oranges.

When To Call An Installer Instead Of Guessing Online

If any of these are true, skip the guessing and get a site visit:

• You’ve shading from trees/chimneys or a split roof (east/west)
• Your roof is older and you’re unsure about repairs
• You want a battery with back-up for certain circuits
• You’ve a bigger-than-normal load (EV, home office, workshop)
• You’re comparing quotes and the specs don’t match

A 10kW system is enough of an investment that small design choices can make a real difference.

Conclusion

A 10kW solar PV system can be a very strong fit in Ireland, but the price only makes sense when the design matches how the home uses electricity. The sensible way to judge it is to start with a realistic range, then pin down the details that actually move the quote, like roof access, electrical works, inverter type, and whether you’ll benefit from battery storage. If you do that, you’ll end up with a system that performs well day-to-day, rather than one that just looks good on paper.