6 kW hybrid inverter: when to choose it over a 5 kW unit
We typically install a 6 kW hybrid inverter in homes around 100-150 m². Most of our customers this year run a single-storey house with a heat pump or boiler plus an air conditioner. With 5 kW that setup sometimes won't start. The AC compressor draws a 4.5-5 kW peak on startup, then add the fridge and a well pump. 6 kW gives you breathing room.
Operation is standard hybrid. When the grid is up you draw from it; surplus from PV panels goes into the battery or back to the grid (if you have Net Metering or a green tariff). When the grid drops, the unit transfers to battery in 10-20 ms, then re-engages solar. No interruption.
First question we ask: single-phase or three-phase supply
Single-phase 220 V at home: we pick 48 V battery models. Our most-shipped units in 2024 were Veichi SISV-6.2K-H (budget, MPPT 60-450 V) and Deye SUN-6K-SG05LP1-EU (best-seller, but occasionally out of stock, check availability). Three-phase 380 V is a different lineup with a high-voltage 85-750 V battery: Veichi VHS-6K-30-H, VHT-6K-25-H. High-voltage is more expensive on the battery side, but more efficient for three-phase sites with multiple AC units.
What else we check before placing the order. First: how many panels you plan, this drives MPPT tracker count (2 or 3). Second: what battery you already have, if any; so we don't break your existing ecosystem. Two-year warranty, delivery from our Kyiv warehouse in 1-3 days.
| Model | Grid | Battery | MPPT Range | Efficiency | Application |
|---|---|---|---|---|---|
| Veichi SISV-6.2K-H(TWIN) | 1-ph/220 V | 48 V, 100 A | 60-450 V | 98.0% | Home up to 120 m², 3-6 kW solar array |
| Deye SUN-6K-SG05LP1-EU | 1-ph/220 V | 48 V, 135 A | 150-425 V | 97.6% | Home with AC, array up to 8 kW |
| Veichi SV-6K-S | 1-ph/220 V | 48 V, 120 A | 90-500 V | 94.0% | Budget backup power |
| Veichi VHS-6K-30-H | 3-ph/380 V | 85-450 V, 30 A | 100-550 V | 97.6% | Three-phase home, commercial facility |
| Veichi VHT-6K-25-H | 3-ph/380 V | 135-750 V, 25 A | 120-950 V | 98.1% | Large panel array, industrial application |
6 kW Hybrid Inverter Manufacturers
Our catalog features inverters from two leading brands with real sales in Ukraine:
- Veichi — sales leader among 6 kW hybrid inverters. The SI series (SISV-6.2K) features a compact design (9 kg) and high efficiency of 98%. The VH series offers three-phase industrial solutions with MPPT up to 950 V. Browse all Veichi 6 kW inverters.
- Deye — a global brand with the SUN series for single-phase and three-phase grids. The SUN-6K-SG05LP1-EU model features IP65 protection for outdoor installation and RS485/CAN interface for monitoring system integration.
6 kW Hybrid Inverters by Specifications
Select an inverter by key parameters:
- By power: 3 kW | 5 kW | 6 kW | 10 kW
- All models: Hybrid Inverters Catalog
- Accessories: Batteries | Solar Panels | LiFePO4 Batteries
Warranty and Support
All 6 kW hybrid inverters come with official manufacturer warranty: Veichi — 5 years, Deye — 5 years. Delivery across Ukraine: Nova Poshta, Ukrposhta, door-to-door delivery. Payment: bank transfer, prepayment, cash on delivery. Free technical support for installation, configuration, and solar panel integration.
