The Rebel County's solar specialists. Premium tier-1 panels installed in a single day. SEAI grant filed for you. Payback in 7 years for a typical Cork City home.
Real numbers from 215 Cork installations. ESB rates have risen 27% since 2022 — going solar in Cork City has never paid back faster.
Real data from PVGIS (the EU's solar reference database) and Met Éireann. Numbers below are specific to Cork City at 51.90°N, 8.48°W — not all-Ireland averages.
1050 kWh/m²/yr
Cork actually sits in the top quartile of Irish counties for solar yield. Irradiation is what determines how much electricity your panels can produce — and Cork's value of 1050 kWh/m² is comfortably above the 800 kWh/m² minimum where solar PV becomes economically viable. The same data drove SEAI's decision to keep the grant available across all 26 counties of the Republic.
~1,103 hours/yr
Met Éireann data shows Cork receives around 1,103 hours of bright sunshine per year. The south and east of Ireland are noticeably sunnier than the west, which is why payback periods in Cork tend to be 6–9 months shorter than in counties like Mayo or Donegal. Trend has been stable since the 1990s.
SSE → S → SSW
For Cork's latitude (51.90°N), the perfect roof faces due south at 35–40° pitch. East-facing produces ~85% of south output; west-facing ~88%. North-facing roofs can still work with a 12% generation loss — important for Cork terraced and town-house owners with no choice. We split arrays across two faces routinely.
42% / 18%
Roughly 42% of a Cork system's annual output comes in June–August, while only 18% comes in December–February. This is normal across Ireland and why batteries (or smart export at peak prices) make economic sense — they smooth the seasonal curve and keep ESB bills steady all year.
Jun peak / Dec low
A 4 kWp system in Cork typically produces around 553 kWh in June (peak month) and just 89 kWh in December. The curve is symmetric around the summer solstice. Cloudy/rainy weeks reduce output by 30–60% vs sunny weeks at the same time of year.
0.82 – 0.87
Performance ratio (PR) is the real-world output divided by the theoretical maximum. Cork installs typically run at 0.82–0.87 PR — slightly above the European average of 0.80, helped by Ireland's cool summers (panels are more efficient at lower temperatures). Our crews monitor every install via app for the full 25-year warranty period.
A typical 3-bed home in Cork City pays €2,080 a year to ESB. After solar + battery, that drops to under €624 — and the system keeps producing for 25+ years.
Three core services, one team, all SEAI-registered. We design, install, and monitor every Cork system end-to-end.
You don't need to read spec sheets, chase grant forms, or argue with three different tradesmen. We're a single SEAI-registered crew that handles your survey, design, paperwork, install and aftercare in Cork — all under one roof.
Most installers disappear the day the scaffolding comes down. We don't. Every system we put in across Cork is monitored remotely, serviced annually, and backed by a workmanship guarantee that's still valid a decade from now.
No hidden surprises, no last-minute price hikes. Every step is fixed, dated and confirmed in writing before we start your Cork install.
Use the calculator above or chat to a real human. We'll give you exact savings based on your Cork home and bill.
Day 0An engineer visits your Cork home to measure roof pitch, check shading, and design the optimal layout.
Day 3–7We handle every form for you, including the Cork County Council planning notice. Grant lands in 7–10 working days.
Day 10–20Our own crews — never subbed-out. System commissioned, app set up, you start saving from day one.
Day 25–30Three of our most recent installations in Cork. Customer first names + Eircode prefix only (full address withheld for privacy). All systems are remote-monitored and the figures below are pulled from real performance data.
"Quote in the morning, scaffolding 3 weeks later, panels by 5pm the same day. ESB bill went from €210 to €70 a month within the first quarter."
"Wanted everything done at once — solar, battery, EV charger, ESB notification. They quoted fixed price and stuck to it. Two-year ROI on the EV-only piece alone."
"I was nervous about putting panels on a slate roof — they're a 1920s terrace. They removed and replaced slates around the mounts cleanly. No leaks, no damage, the roof looks original."
The Sustainable Energy Authority of Ireland (SEAI) Solar Electricity Grant pays homeowners up to €2,100 towards solar PV. We file every application on behalf of Cork customers — typical approval lands within 7–10 working days. We also coordinate the post-install BER assessment with a Cork-based BER assessor.
30-second form. Eircode-based generation forecast for your Cork address.
Day 0Engineer visits your Cork home, designs system, confirms eligibility.
Day 3–7We submit through the SEAI portal with your survey + design + Eircode.
Day 8SEAI confirms €2,100 grant offer — valid for 8 months.
Day 14–18Single-day install in Cork. Safe Electric cert issued same day.
Day 25–30Post-install BER assessment. SEAI deposits €2,100 to your account.
Day 45–60We're not a national chain or a fly-by-night cowboy — we're a SEAI-registered Irish installer with our own crews, our own warranties, and a 4.9★ rating from 1,779+ reviews.
One of only 80 fully-registered installers nationwide. Your grant is guaranteed and we file it for you.
JA Solar, Longi, SunPower. Bloomberg-rated tier-1 — the same panels used on commercial farms.
We arrive at 8am, scaffolding goes up, panels go on, and you're switching the system on by 5pm.
Panels, inverter, and workmanship — all covered. If something fails, we fix it. No excuses.
Spread over 5 years with our partner credit union. Most Cork homes' monthly payments are less than the savings.
See production, savings, and grid export in real-time. Spot a problem? We see it before you do.
"Cut my ESB bill from €240 to €58 a month. The team installed in one day, no mess, no fuss. Best decision I've made for my home in 10 years."
"From quote to switch-on in 22 days. SEAI grant landed in the bank exactly when they said it would. Honest, professional, and the app is brilliant."
"Got three quotes — Solas Energy wasn't the cheapest but the engineer actually explained the numbers. Two years in and the system has paid back faster than expected."
Cork has a mix of roofing styles — from period slate in Cork City to modern concrete tile in the suburbs. Each has its quirks. Here's how we install on each.
Common on pre-1950s Cork homes, especially in Cork City centre. We carefully lift slates around mount points, install GSE in-roof or proprietary hooks, and replace slates with closed-cell flashing. No drilling through slate. Workmanship guarantee covers any leaks for 10 years.
+0 days · same-day installThe most common roof type on 1970s–2010s Cork estates. Standard Tegral, Sandtoft or Marley tiles. We use lift-and-flash mounts that preserve the existing roof membrane. Quickest to install (panels can go up in 4–6 hours on a 4 kWp). Manufacturer warranty unaffected.
+0 days · standard installFound on premium Cork new-builds and some Cork-style heritage homes. Slightly trickier than concrete — clay is more brittle. We use over-tile clamps with EPDM gasket. We carry replacement clay tiles in our van for any inevitable breakage during install.
+0 days · careful installCommon on extensions, garages, and modern flat-roofed Cork homes. We use ballasted (no-penetration) systems where possible — keeps your warranty intact. Pitched at 10–15° via aluminium frames for optimum Cork latitude. Comes with extra wind-load calc.
+0 days · ballasted installStandard on agricultural buildings and some modern Cork eco-homes. Easiest of all roof types — we clamp directly to the metal ribs with rubber gaskets, zero penetration. We've installed many of these for Cork farms claiming the 60% TAMS 3 grant for solar PV.
+0 days · fastest installFound on pre-1990 Cork farm sheds and some industrial buildings. We don't drill into asbestos roofs — health and safety risk. Solution: replace the roof with metal or felt first (any roofer in Cork), then we install. We can recommend trusted local roofers who handle asbestos disposal compliantly.
Roof replacement firstPulled from our own enquiries and from Google's People Also Ask box for Cork solar.
Same crews, same SEAI registration, same warranty — we work across all of Munster.
Free quote, free roof survey, no pressure. Most of our Cork customers go from "thinking about it" to "switched on" in under 30 days.