Deye quickly rose to the top of hybrid inverters preferred by Romanian installers and consumers. Here's our detailed review of the 2026 range.
Why Deye?
The Chinese company Ningbo Deye has invested heavily in R&D and launched in 2024-2026 generations of hybrid inverters that compete directly with Victron, but at 50-60% of the price.
- Efficiency 97.6% (above market average)
- Support for LiFePO4 batteries with CAN bus
- Integrated UPS (10ms automatic back-up)
- Native cloud monitoring (Solarman)
- Standard 10 year warranty
The top models in the range
Deye SUN-5K-SG04LP1-EU
- 5 kW single-phase hybrid
- 2× MPPT (max 6.5 kWp panels)
- Compatible with 48V LiFePO4 batteries
- Price: ~1,200 €
- Recommended for: average houses with consumption 15-20 kWh/day
Deye SUN-8K-SG04LP3-EU
- 8 kW three-phase hybrid
- 3× MPPT (max 10 kWp panels)
- Support 100% backup load
- Price: ~1,800 €
- Recommended for: large houses, villas with heat pump + AC
Deye SUN-12K-SG04LP3-EU
- 12 kW three-phase hybrid
- 3× MPPT (max 15.6 kWp panels)
- Battery current 250A
- Price: ~2,400 €
- Recommended for: small commercial projects, workshops
Outstanding features
- Smart Load Output: you can automatically set a heat pump to start when the solar surplus exceeds 2 kW
- Generator AC input: connect a diesel generator as backup
- EPS Mode: in power failure, system falls from mains to battery in 10ms
- Time-of-Use scheduling: for the dynamic tariff, you charge the battery during the hours with cheap energy
Recommended battery compatibility
- BYD Battery Box Premium HVS
- Pylontech US3000C / US5000
- EcoSolaris LiFePO4 (with CAN bus)
- Generic 48V batteries with Deye/Lux protocol
Recommended setup 2026 — Average house
Complete system with Deye 5kW:
- Deye SUN-5K-SG04LP1 inverter: €1,200
- 8× TOPCon 560W panels: €1,600
- LiFePO4 10 kWh battery: €2,500
- Structure + cables + assembly: €1,500
- Total: ~6,800 € turnkey
vs same setup with Victron MultiPlus-II: ~€9,500. Economy: €2,700 for similar functionality.
Pros and cons
Plus: great price, high efficiency, long warranty, ok application.
Minus: Solarman app is less polished than VictronConnect, initial setup requires clear guidance.
See the Deye range available at EcoSolaris.
I recommend ecosolaris, bought 2 times and zero problems
The article convinced me to invest. I will come back with concrete questions
Hello! The Casa Verde 2026 program will probably be launched in June-July. We are waiting for you on the list to be ready for launch.
Good evening, I have a question related to inverters. Three-phase or single-phase in an average house?
The article convinced me to invest. I will come back with concrete questions
We are happy that we could help you. If you need technical advice, we are here!
Good, I understood everything. I keep in mind for the future when I will make a system myself
Thank you for your appreciations! For a personalized offer, you can contact us at oferta@ecosolaris.ro or at 0721-XXX-XXX.
Thank you for your appreciations! For a personalized offer, you can contact us at oferta@ecosolaris.ro or at 0721-XXX-XXX.
We are happy that we could help you. If you need technical advice, we are here!
Thank you for your trust! We look forward to seeing you on the blog and in the showroom.
I hope that the article reaches those who are still hesitating. 100% worth the investment
I recommend ecosolaris, bought 2 times and zero problems
very well documented. congratulations to the team
Hello, I saw the article and I want a personalized offer. What email do I contact you on?