SEAI grant covers panels + inverter + mounting + labour. Apply at seai.ie before installation.
Huawei SUN2000-5KTL-L1 — Ireland 2026
Ireland's most popular inverter — FusionSolar ecosystem with Luna2000 battery
Ireland's best-selling solar inverter and the default choice of most Irish solar installers. The SUN2000-5KTL-L1 is a single-phase hybrid inverter — it supports both immediate solar self-consumption and battery charging/discharging, with grid backup built in. The FusionSolar app provides best-in-class real-time monitoring and the Huawei Luna2000 battery integration is seamless. With a 10-year warranty and IP65 weather protection, it's the benchmark residential inverter in Ireland for 2026.
⚙️ Technical Specifications
| Inverter type | Residential Hybrid Inverter |
| Rated output | 5 kW |
| Power range | 3–6 kWp |
| Efficiency | 97.8% |
| MPPT inputs | 2 |
| Phase | Single Phase |
| Battery compatible | Yes — Huawei Luna2000 |
| Backup power | ✓ Yes |
| Monitoring app | FusionSolar |
| WiFi included | ✓ Yes |
| Warranty | 10 years |
| IP rating | IP65 |
| Suitable for | Residential |
💰 Complete system cost
Grant covers full installed cost — panels, inverter, mounting and labour. Apply at seai.ie before installation begins. SEAI-registered contractor required.
✅ What we like
- Ireland's most installed inverter — proven in Irish conditions at scale
- FusionSolar app — best-in-class real-time monitoring with live yield and self-sufficiency data
- 10-year warranty — class-leading at this price point
- Seamless Huawei Luna2000 battery integration
- Backup power capability — keeps essential circuits live during grid outages
- Widely stocked — available from most Irish solar installers and distributors
⚠️ Worth knowing
- Battery locked to Huawei Luna2000 only — cannot use third-party batteries
- Premium price vs Solis/Growatt alternatives at the same output
- Entire system reliance on Huawei ecosystem for monitoring and battery management
📐 System sizes — full installed cost & SEAI grant
Full system costs include panels (avg 430W), this inverter (~€1,250), mounting and labour. SEAI Solar PV Home Grant of up to €1,800 applies to all components. Battery column adds a ~10kWh LFP battery (~€3,200 avg) — the grant does not cover batteries.
| System | Panels | Est. generation | Solar only (after grant) | + Battery 🔋 | Est. payback |
|---|---|---|---|---|---|
| 3 kWp | 7 panels | ~2,700 kWh/yr | ~€4,150 | ~€7,350 | ~11 yrs |
| 4 kWp | 10 panels | ~3,600 kWh/yr | ~€5,050 | ~€8,250 | ~10 yrs |
| 5 kWp | 12 panels | ~4,500 kWh/yr | ~€5,950 | ~€9,150 | ~9 yrs |
| 6 kWp | 14 panels | ~5,400 kWh/yr | ~€6,850 | ~€10,050 | ~9 yrs |
| 8 kWp | 19 panels | ~7,200 kWh/yr | ~€8,650 | ~€11,850 | ~9 yrs |
🔧 Complete your solar system
The SUN2000-5KTL-L1 is Step 2 — you need panels before it and most Irish homeowners now add battery storage after. Here are the most popular pairings in 2026:
🚗 Add an electric car — charge it from your solar inverter
Your inverter converts roof solar into electricity — your EV turns it into free kilometres. See all 205+ EVs in the EV Vehicle Directory.
☀️ Compatible solar panels
The SUN2000-5KTL-L1 is compatible with all major solar panel brands available in Ireland. See the Solar Panel Directory to compare specifications, pricing and SEAI eligibility for all 13 panels.
🔋 Battery compatibility
The SUN2000-5KTL-L1 supports battery storage. Compatible batteries are listed below. See the Battery Storage Directory for detailed specifications and pricing.
❓ Questions about the SUN2000-5KTL-L1
⚡ Also consider
Other solar inverters available in Ireland.