Commercial grants available — SEAI Non-Domestic Microgen · TAMS III (agri, up to 60%) · Accelerated Capital Allowance year-1 write-off.
LONGi · Commercial Solar Panel · Ireland 2026
LONGi Hi-MO 7 580W — Ireland 2026
Commercial N-type HPBC bifacial — high-output for large Irish roofs
The Hi-MO 7 is LONGi's flagship commercial panel — 580W of N-type HPBC bifacial output in a large-format module. Fewer panels per kWp means fewer mounting structures, fewer roof penetrations, and lower installation labour cost at scale. At 23.0% efficiency it is the highest-efficiency panel in this directory. The standard choice for Irish warehouses, agri buildings, schools and flat commercial roofs.
580W23% efficiency30-yr performance warrantyN-type HPBC BifacialSEAI grant
⚙️ Specifications
Wattage
580 W
Efficiency
23%
Cell technology
N-type HPBC Bifacial
Dimensions
2278 × 1134 × 30 mm
Weight
28.5 kg
Temperature coefficient
−0.29%/°C
Product warranty
12 years
Performance warranty
30 years
Annual degradation
0.4%/yr
Low-light performance
Very Good
Frame
Silver
💰 Pricing & SEAI grant
☀️ This panel — Step 1 of system
~€215 per panel
You still need: inverter (~€950–1,800) · mounting · installation
💰 Irish solar grants for commercial installations
SEAI TAMS III grant for agri buildings. SEAI Non-Domestic Microgen for businesses. Commercial Accelerated Capital Allowance (ACA) tax relief — year-1 write-off.
The highest efficiency panel in this directory — maximises output per square metre of roof area at scale
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Bifacial — additional rear generation
Light reflected off flat roof surfaces adds 5–15% to energy yield on commercial installations
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Lower cost per kWp installed
Fewer panels, fewer mounting brackets, fewer cable runs — installation labour cost per kWp is lower than with smaller residential panels
🚐 Electrify your fleet — charge from your commercial solar
Commercial solar and an electric fleet are the most powerful combination for Irish businesses. Your roof generates free electricity during working hours — your vans charge overnight or during the day from that solar output. SEAI offers €7,600 per vehicle for commercial vans on top of your solar grant. See the full EV Vehicle Directory — 205+ vehicles including vans, trucks and buses.
⚡ Commercial solar + electric fleet — the business case
A 50kWp commercial solar system generates approximately 45,000 kWh/year — enough free electricity to power a fleet of 10 electric vans for their entire annual mileage. Vehicles charge overnight from battery storage or directly from daytime solar output. SEAI van grants of €7,600 per vehicle stack on top of your solar grant. Accelerated Capital Allowance applies to both the vehicles and the solar installation in year one.
📊 Example: 50kWp solar + 10 × Ford E-Transit Custom vans = near-zero fleet fuel cost. SEAI grants on both solar and vehicles. ACA write-off in year one for all equipment.
Featured electric commercial vehicles — SEAI grant eligible
12-year product warranty (standard for commercial)
📐 System sizes & indicative ROI
Estimated annual generation based on Ireland's average irradiance of ~900 kWh/kWp/yr. Installed cost and payback estimates assume a mid-range commercial electricity rate of €0.28/kWh.
System
Panels
Est. generation
Est. installed
Est. payback
10 kWp
18 panels
~9,000 kWh/yr
~€9,000
~3.6 yrs
20 kWp
35 panels
~18,000 kWh/yr
~€18,000
~3.6 yrs
50 kWp
87 panels
~45,000 kWh/yr
~€37,500
~3.0 yrs
100 kWp
173 panels
~90,000 kWh/yr
~€68,000
~2.7 yrs
Indicative payback by sector
🏢 Retail & Office
Typical rate: €0.22–0.26/kWh. High daytime electricity usage aligns well with solar generation.
Est. payback: 3–5 years
🏭 Manufacturing & Warehouse
Typical rate: €0.26–0.32/kWh. High rates + large roof + daytime load = strongest commercial ROI.
Est. payback: 2.5–4 years
🌾 Agriculture (TAMS III)
Typical rate: €0.18–0.24/kWh. TAMS III grant up to 60% transforms payback. Apply via Teagasc.
Est. payback: 1.5–3 years(with TAMS)
Estimates are indicative. Actual payback depends on your electricity tariff, usage profile, system size, roof orientation and applicable grants. Always obtain a site survey and financial model from a qualified commercial solar installer.
⚡ Compatible inverters
The Hi-MO 7 580W is compatible with the following inverters — click any to see full specs, pricing and system cost estimates. See the Solar Inverter Directory to compare all 15 inverters available in Ireland.
✅ The Hi-MO 7 580W is compatible with all major Irish inverter brands. Your installer will recommend the best pairing based on your roof size, usage and budget — hybrid inverters (Huawei, Fronius, Sungrow, SolarEdge) are recommended for any home that may want battery storage now or in future.
🔧 Complete your solar system
The Hi-MO 7 580W is Step 1 of a complete solar installation. Here's what you need next:
🧠 Energy Management Systems — get more from your solar
Solar panels generate electricity — an energy management system makes sure it's used at the right time and never wasted. EMS devices can reduce grid import by 10–25% beyond the panels alone, by coordinating generation, battery charging, hot water heating and EV charging. See the full Smart Energy Directory for all EMS products in Ireland.
💡 Why add an EMS to your solar system? Without an EMS, your solar system exports surplus energy to the grid at low export rates (typically €0.09–0.18/kWh via the Clean Export Guarantee). An EMS diverts that surplus to a hot water cylinder, battery, or EV charger — capturing value at your household electricity rate (€0.33–0.36/kWh) instead of the export rate.
🌡️ Pair with a heat pump — maximise your SEAI grants in Ireland
Solar panels and a heat pump are the most powerful renewable combination available to Irish businesses today. Solar generates free electricity — a heat pump converts that electricity into heat at 3–5× efficiency. Both qualify for substantial SEAI grants. See the full Heat Pump Directory for all models available in Ireland.
💰 Commercial solar + heat pump — combined grant opportunity
Commercial properties installing both solar and a heat pump system may qualify for multiple grant schemes simultaneously. Solar via SEAI Non-Domestic Microgen or TAMS III (agri, up to 60%); heat pump via SEAI Better Energy Communities or commercial heat pump grants. An Accelerated Capital Allowance (ACA) write-off may also apply to both technologies in year one, significantly improving cash flow and project ROI.
Why solar + heat pump for commercial buildings: A commercial heat pump moves 3–5 units of heat for every unit of electricity consumed (COP 3–5). When that electricity is generated by your rooftop solar, the heating cost is near zero during solar generation hours. For offices, hotels and schools with daytime occupancy, solar generation and heating demand align closely — maximising self-consumption and minimising the payback period on both investments.
🔌 Pair with fleet EV chargers — power your vehicles from commercial solar
Commercial solar and fleet EV chargers are the most cost-effective combination for Irish businesses with vehicles. Your solar generates free electricity; your chargers distribute it across your fleet overnight or during the working day.
🔌 Solar + fleet EV chargers: close the loop on energy costs
Commercial solar paired with fleet chargers is the most cost-effective way to run an electric fleet in Ireland. Your roof generates free electricity during working hours; your vehicles charge from that output during the day or from battery storage overnight. Dynamic load balancing means multiple charge points share your available supply — no expensive grid upgrades needed.
The Hi-MO 7 580W forms the generation core of a complete commercial energy solution. Combined with battery storage, EV charging infrastructure and smart energy management, it transforms energy costs, reduces carbon reporting obligations and opens new revenue opportunities.
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Commercial solar array
LONGi Hi-MO 7 580W — TAMS III up to 60% (agri) · SEAI Non-Domestic Microgen · ACA year-1 tax write-off
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Commercial inverter
String or central inverter — Fronius Tauro, Sungrow or Huawei
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Battery storage (optional)
Store surplus solar — reduce peak demand charges, grid costs and improve project payback
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EV charging infrastructure
Fleet or staff EV chargers — Type 2, CCS and DC rapid. List spare capacity on De Energy Hub for revenue
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Commercial heat pump
SEAI BEC / SSRH grants for schools, hotels, community buildings. ACA write-off applies to heat pumps too
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De Energy Hub integration
List EV chargers as bookable assets — turn energy infrastructure into a revenue stream
💡 Commercial solar grants in Ireland 2026: TAMS III provides up to 60% grant aid for qualifying agricultural buildings. SEAI Non-Domestic Microgen for other commercial premises. Accelerated Capital Allowance (ACA) allows full solar equipment cost to be written off against tax in year one. Add a heat pump to access SEAI BEC, SSRH or individual unit grants on top. Most Irish businesses achieve payback in 2–5 years.
Get it installed
Find SEAI-registered installers for the LONGi Hi-MO 7 580W
Tell us your requirements and we'll connect you with experienced commercial solar installers who can provide a full site survey, system design and financial model for your 580W panel project.
🏭 Request a commercial site survey
A qualified commercial solar installer will contact you to arrange a site survey and provide a full system design and financial model.
💶 Get quotes
3 local installers · 1 business day
💬 Get advice first
Free assessment · no obligation
Your details are only shared with SEAI-registered Irish solar installers. No spam — ever.
✅
Request sent!
A commercial solar installer will be in touch to arrange your site survey.
De Energy Hub
More power to youTM.
🛒 Built for retail parks, offices & business premises
List your car park chargers as bookable assets — earn while you work
Your solar-powered car park chargers can become a bookable revenue stream. EV drivers find your chargers in the app, see your energy rate — Pure Solar from your roof — and book in advance. Remove the headache from reception. Automated check-in, check-out and notifications handle everything. Filter by charger type so Type 2, CCS, CHAdeMO and EHU spaces are always matched correctly.
☀️ Pure Energy🔄 Smart Energy🚀 Boost Energy
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QR code per bay
One unique QR code per charger or space — guests scan to book, check in and check out
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Charger type filtering
Type 2, CCS, CHAdeMO, Type 1 and EHU — drivers filter to chargers that fit their vehicle
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Check-in & check-out alerts
Automated notifications at session start and end — maximise charger utilisation across the day
A fully installed 4kWp system using the LONGi Hi-MO 7 580W costs approximately €4,655 before grants — covering 7 panels, a compatible hybrid inverter, mounting and installation. After the SEAI Solar PV Home Grant of up to €1,800, the net cost is around €2,855. System cost varies by county, roof type, installer and whether you add battery storage. Get 3 quotes through the form above for accurate local pricing.
For a typical Irish home (3–4 bedrooms, ~4,000–5,000 kWh/year electricity use), a 4kWp system using the LONGi Hi-MO 7 580W requires 7 panels (each at 580W). This generates approximately 3,600 kWh per year in Ireland — enough to cover 60–80% of average household consumption. Homes with EVs or heat pumps typically benefit from a 5–6kWp system (9–11 panels).
The LONGi Hi-MO 7 580W comes with a 30-year performance warranty and a 12-year product warranty. The performance warranty guarantees that the panel will still output at least 87–88% of its original rated power at year 30. The product warranty covers manufacturing defects. Annual degradation is 0.4% — lower than standard PERC panels due to the N-type cell technology.
Yes — the LONGi Hi-MO 7 580W is well suited to Ireland's climate. Its low-light performance is rated Very Good, which matters because Ireland receives a high proportion of diffuse, overcast light rather than direct sunshine. The temperature coefficient of −0.29%/°C means it loses NaN% efficiency per degree above standard test conditions — in line with industry standards. A 4kWp system in Ireland generates approximately 3,600 kWh/year despite our cloud cover.
N-type HPBC Bifacial (Hybrid Passivated Back Contact) is a premium cell technology that offers two key advantages over standard PERC panels. First, it has no Light Induced Degradation (LID) — standard PERC panels lose 1–2% output in their first months of operation; N-type panels produce full rated power from day one. Second, the annual degradation rate is lower (0.4%/yr vs 0.5–0.6% for PERC), meaning more cumulative kWh over the 30-year warranty period. For Irish conditions, the difference over 25 years is typically 3–5% more lifetime energy yield.
Commercial installations using the LONGi Hi-MO 7 580W may qualify for several SEAI schemes: the Non-Domestic Microgen grant for smaller commercial systems; TAMS III providing up to 60% grant aid for qualifying agricultural buildings; and Accelerated Capital Allowance (ACA) through Revenue allowing the full equipment cost to be written off against tax in year one. For systems over 50kWp, larger incentive structures may apply. Always verify current eligibility and application procedures at seai.ie before proceeding — grant values and thresholds change annually.
A 50kWp commercial system using the LONGi Hi-MO 7 580W (580W) requires 87 panels — compared to 117 panels for a 430W residential panel. At commercial scale, every panel saved means one fewer mounting bracket, one fewer roof penetration and less installation labour time. A 50kWp system generates approximately 45,000 kWh/year in Ireland, enough for a medium-sized office or warehouse to cover 60–80% of daytime electricity use.
Several schemes may apply. The SEAI Non-Domestic Microgen grant supports smaller commercial installations. TAMS III provides up to 60% grant aid for solar on qualifying agricultural buildings. Accelerated Capital Allowance (ACA) through Revenue allows the full cost of solar equipment to be written off against tax in year one. Verify current eligibility at seai.ie before proceeding.
With 580W panels: 50,000W ÷ 580W = 87 panels. Compare this to residential 430W panels which would require 117 panels for the same output. The fewer-panels advantage is significant at commercial scale — 30 fewer roof fixings, 30 fewer cable connections, and materially less installation time.
☀️ Also consider
Other commercial solar panels in our Irish directory.
