Solar Panels Wexford — Costs, SEAI Grant & Installers (2026)

A 4 kWp solar panel system in Wexford costs between €8,000 and €11,000 installed, or €6,200–€9,200 after the SEAI Solar Electricity Grant of up to €1,800. There are 35 SEAI-registered solar installers active in Wexford as of May 2026 (solarquotesireland.ie installer database). Wexford's southeast-facing coastline and relatively low rainfall give it solar irradiance of approximately 1,050–1,125 kWh/m² per year — among the highest readings of any Irish county, broadly on a par with Cork and above most of the rest of the country. That translates to a 4 kWp system generating 3,400–3,800 kWh/year, which is meaningfully above the national average.

Payback on a well-sited Wexford system typically runs 7–9 years after the grant. The irradiance advantage is real — Wexford sits alongside Cork as one of the better-performing counties in Ireland for solar yield, and the southeast's lower cloud cover is the reason. If you are weighing whether solar is worth it in your county, Wexford's conditions are about as favourable as Ireland gets.

Solar Panel Costs in Wexford — 2026

Typical installed costs for Wexford residential systems, May 2026. Gross figures cover supply, installation, inverter, and commissioning on a standard south- or southeast-facing roof. After-grant figures apply the full SEAI Solar Electricity Grant. Annual savings assume 30% self-consumption at a blended rate of 28c/kWh plus Clean Export Guarantee export payments — your actual figure depends on when you use electricity and what your supplier pays for exports.

The SEAI grant is capped at €1,800 regardless of system size — you reach that ceiling at 4 kWp. A 3 kWp system attracts €1,600. Adding a battery typically adds €2,500–€4,500 to the gross cost and is not currently covered by the SEAI Solar Electricity Grant. For the full breakdown of how system size affects cost and payback across Ireland, see the solar panels cost Ireland guide or the dedicated 4 kWp system cost guide.

Note on cost ranges: Installer pricing in Wexford varies. With 35 SEAI-registered installers active in the county, quotes for the same system can differ by 15–20%. The ranges above reflect what Wexford homeowners are paying in 2026. Request quotes from at least three registered installers before committing.

SEAI Solar Electricity Grant — Wexford Eligibility

The SEAI Solar Electricity Grant works the same in Wexford as it does in every other county — one national scheme, one set of rules. It is administered by the Sustainable Energy Authority of Ireland (seai.ie) and is worth up to €1,800. SEAI confirmed the €1,800 maximum remains unchanged for 2026.

Grant tiers (verified against seai.ie, May 2026)

• First 2 kWp: €700 per kWp (€1,400 for 2 kWp)
• Next 2 kWp: €200 per kWp
• Maximum: €1,800 (reached at 4 kWp and above)

A 3 kWp system attracts €1,600; a 4 kWp or larger system attracts the full €1,800.

Eligibility conditions

• Your home must have been built and occupied before 2021 (i.e. before 1 January 2021).
• A post-works BER assessment must be carried out by a registered SEAI BER Assessor after installation — this is required before drawing down the grant. There is no minimum BER rating required and no requirement to have an existing BER before you apply. The old B2 requirement was removed in 2022.
• Your installer must be on the SEAI registered companies list at the time the work is carried out. A non-registered installer cannot process any part of the grant on your behalf.
• The installation must be a new solar PV system. Replacement of existing panels does not qualify.

See the full SEAI solar grant guide for the complete application process, documentation requirements, and typical processing times.

How the grant is paid

You must apply online at mgen.seai.ie and receive a Letter of Offer before installation begins. Do not start work before grant approval — work begun without a Letter of Offer is not eligible for payment. Once you receive your Letter of Offer, you have 8 months to complete the install and submit documentation. Your installer submits the NC6 form to ESB Networks before installation, which can take at least 4 weeks, so factor this into your timeline.

You pay the installer the full invoice amount upfront (unless using a One Stop Shop, who can deduct the grant from your bill). Once installation is complete and all documentation is submitted — Declaration of Works, Safe Electric / RECI certificate, NC6 grid notification form, post-works BER — SEAI transfers the grant directly to your nominated bank account. SEAI states 4–6 weeks to process payment once all documents are received and in order.

How Much Does Solar Generate in Wexford?

Wexford records solar irradiance of approximately 1,050–1,125 kWh/m² per year for south-facing surfaces. That figure places Wexford among the highest-irradiance counties in Ireland — on a par with Cork and ahead of most of the midlands, west, and northwest. The explanation is straightforward: Wexford's southeast-facing coastline catches more direct sun, and the county's lower average annual rainfall compared to the Atlantic seaboard means more clear-sky hours.

At 850–950 kWh of generation per kWp, Wexford sits above the national average of 800–900 kWh/kWp. For a south-facing roof at 30–40 degrees of pitch with no significant shading, expected annual generation is:

A typical three-bed semi-D in Ireland uses 4,200–5,000 kWh/year. A 4 kWp Wexford system generating 3,400–3,800 kWh covers a substantial portion of that demand, but how much you actually save depends on timing. Solar generates during daylight hours. Use it then — for heating, appliances, an EV charger, or a heat pump — and you avoid buying from the grid at retail rates. If most of your household consumption is in the evening, you export the surplus, and the return depends on what your supplier pays under the Clean Export Guarantee.

Wexford's property mix includes a substantial share of farms and rural homes with large south-facing roof areas — these tend to accommodate 5–6 kWp systems comfortably. Commuter belt towns like Gorey and Enniscorthy also have a high proportion of modern semi-detached housing, where 4 kWp is typically the right fit. East- or west-facing roofs lose around 15–20% of output versus south-facing. Get a written generation estimate from your installer based on your specific roof orientation, pitch, and shading before committing to a system size.

For a fuller explanation of how to size a system for your home, see how many solar panels do I need in Ireland.

35 Installers in Wexford — What to Look For

There are 35 SEAI-registered solar installers active in Wexford as of May 2026 (solarquotesireland.ie installer database). That is a reasonable level of competition for a county this size — enough to get three or four competitive quotes without difficulty, which is the minimum you should be collecting before signing anything.

What to check before signing

• SEAI registration: Verify your installer is on the SEAI registered companies list at the time of quoting. Registration can lapse; always confirm it is current, not just that the company was registered at some point in the past.
• Safe Electric / RECI certification: Solar PV involves electrical work. Your installer must hold a Safe Electric registration (the consumer-facing name for the Register of Electrical Contractors of Ireland, RECI). Check at safeelectric.ie. SEAI registration and Safe Electric / RECI certification are two separate registers — an installer needs both.
• Written quotation covering the specifics: The quote should state system size in kWp, panel brand and model, inverter brand, estimated annual generation for your roof orientation, and the total price at 0% VAT. If any of those are absent, ask for them before proceeding.
• Site survey before contract: Any installer quoting without seeing your roof — or at minimum reviewing satellite imagery and asking about shading — is estimating. A site survey before signing is standard practice. Do not proceed without one.
• Warranty terms: Panels typically carry a 25-year linear performance warranty, with output at around 80–85% of rated capacity at year 25. Inverters are usually 5–10 years. Understand who backs the warranty if the installer no longer trades in 15 years' time.

VAT on Wexford solar installs

Residential solar PV supply and installation has been charged at 0% VAT in Ireland since May 2023. This applies to all Wexford homeowners as it does everywhere in the Republic. Any quote for your home should show 0% VAT — if a Wexford installer is charging VAT on a residential install, that is worth querying before signing.

Wexford installers also serve the adjoining counties — if you are near the county borders with Carlow, Kilkenny, or Wicklow, you may have additional options from installers who do not list Wexford as their primary county. Worth mentioning when you request quotes. For comparison, see also solar panels Cork for a county with a similar irradiance profile.

Planning Permission for Solar Panels in Wexford

Most residential rooftop solar installations in Wexford do not require planning permission. Under the Planning and Development Act 2000 (Exempted Development) (No. 3) Regulations 2022 — Statutory Instrument 493 of 2022 (SI 493/2022) — solar panels on the roof of a house are classified as exempted development within defined limits, which means no planning application is needed for a standard install on a standard house.

The main conditions for the exemption to apply:

• The system must be on the roof of a house (apartments are excluded from Class 2 and are subject to separate rules under Class 60).
• The panels must not project more than 15 cm from the roof surface (50 cm on a flat roof).
• Panels must be at least 50 cm from the edge of the roof on which they are mounted.
• The exemption does not apply to protected structures. Within architectural conservation areas, free-standing installations are only exempt if they would not materially affect the character of the area.
• Wall-mounted solar panels are not exempted development under any configuration — they always require planning permission.
• Ground-mounted (free-standing) solar systems within the curtilage of the house are exempt up to a total aperture area of 25 m², but must not be placed forward of the front wall of the house and must leave at least 25 m² of private open space.

The planning authority for Wexford is Wexford County Council. If your property is a protected structure or you have any doubt about exemption status, check with Wexford County Council before installation begins. Your installer should confirm planning status as part of their pre-installation assessment — if they do not, ask the question directly.

How to Get Solar Panel Quotes in Wexford

Getting a quote through solarquotesireland.ie matches you with SEAI-registered, Safe Electric / RECI-certified installers in Wexford. The process takes about two minutes:

1. Fill in the quote request form — your county, property type, approximate system size interest, and roof details.
2. We match you with local registered installers — only Wexford-active installers who are on the SEAI registered companies list.
3. You receive quotes and compare — typically within 2–5 working days. No obligation to proceed.

Three to four quotes is the recommended minimum before committing. In a market with 35 registered installers in Wexford, there is no reason to accept the first price offered. A 15–20% difference between the highest and lowest quote for the same system is common.