Deye SUN-18K-SG05LP3-EU-SM2

Deye SUN-18K-SG05LP3-EU-SM2 – 3-phase hybrid inverter

The Deye SUN-18K-SG05LP3-EU-SM2 is a three-phase hybrid inverter for homes and small businesses. It works with compatible HV batteries (e.g., Deye BOS-G, BYD, Pylontech), enabling backup and self-consumption. Distributed by Deye.

Key Features of Deye SUN-18K-SG05LP3-EU-SM2

• On-grid and off-grid operation 3-phase with energy storage (full hybrid mode)
• Wide battery compatibility: Deye BOS-G, BYD Battery-Box Premium HV, Pylontech, Dyness (HV and LV)
• 2 independent trackers MPPT, wide DC voltage range (150-850 V)
• Built-in EPS (backup) output for priority circuits, switching time <20 ms
• Zero-export feature after adding a Smart Meter
• Solarman Smart (mobile) and Solarman Cloud (web) online monitoring – WiFi stick included
• IP65 protection class – indoor and outdoor installation
• Compliance with NC RfG, EN 50549-1, VDE-AR-N 4105, G99 – accepted by OSD in Poland
• Generation control (Q(U), P(f), Ride-Through LVRT/HVRT)
• Standard manufacturer's warranty 5 years – option to extend to 10 years (registration at Deye)

Ideal for

Single-family 3-phase homes and small businesses wanting to maximize self-consumption and have a backup of selected circuits.

Technical Specifications

What's in the package

• inverter
• Wall mount
• DC connectors
• CAN/RS485 communication cable
• Instruction

Exact content varies by version – if in doubt, please contact us.

Certificates and standards

• CE, EN 50549-1, VDE-AR-N 4105
• IEC 62109-1/-2 (safety)
• IEC 61727, IEC 62116 (anti-islanding)
• Compliance with NC RfG and PPDS OSD requirements in Poland

Benefits for the installer and investor

ROI for a 3-phase house: 8–15 kWp installation with 10–20 kWp storage kWh allows you to increase self-consumption from ~30% (without batteries) to 70–85% (with storage). The return on investment in net-billing is 7–10 years, and the battery life (10+ year warranty) significantly exceeds this period.

Annual savings: for a family of 4 consuming 5-7 thousand kWh Annual savings of PLN 4–6,5 compared to purchasing electricity from the grid. Thanks to the EPS function, you get the bonus of emergency power.

After-sales support: assistance in pairing the inverter with the battery, configuration of operating modes (self-use, backup, peak-shaving), activation of Solarman Smart/Solarman Cloud, support in reporting to the OSD and warranty service throughout Poland.

For the installer: attractive margin, fast delivery, service pre-authorization, marketing materials for end customers, online training on hybrid system configuration.

Installation and commissioning

The installation of the 3-phase hybrid is performed by a licensed electrician SEP E up to 1 kV Trained in battery installations. Process: Submitting a micro-installation (up to 50 kWp) or requesting conditions (above 50 kWp), installing the inverter and battery (typically 1 day), parameterizing self-use/backup modes, and launching Solarman Cloud monitoring. Time from purchase to a functioning system: 1–4 weeks (micro-installation) or 6–10 weeks (above 50 kWp).

Most frequently asked questions

Which batteries does the Deye SUN-18K-SG05LP3-EU-SM2 work with?

The product supports a wide range of HV and LV batteries: Deye BOS-G, BYD Battery-Box Premium HV, Pylontech, Dyness, and others compatible with the CAN protocol. We recommend verifying with the current Deye compatibility list.

Does it provide backup?

Yes – when added, a dedicated Backup Box / Smart Load powers selected priority circuits during a power outage. Transfer time <20 ms.

What is the difference between the SG series and the HP3 series?

SG series are lower power 3-10 kW; HP3 series are 12-30 kW. Both are 3-phase hybrid, but have different datasheets and battery packs.

What guarantee?

Standard 5 years; after registration with the manufacturer, extension to 10 years possible (confirm terms before purchase).

Why Deye

Deye Inverter Technology Deye is one of the largest global manufacturers of photovoltaic inverters and energy storage systems. Founded in 1991 in Ningbo, China, Deye has a global presence in over 100 countries. Deye regularly tops BloombergNEF and Wood Mackenzie rankings among hybrid inverter suppliers, with a particularly strong position in the residential and light commercial segments. The SUN series is currently one of the most popular hybrid platforms on the European market.

Why choose Deye in Poland: a wide range of products covering the full power spectrum (from single-phase 3.6 kW inverters to industrial 80 kW+), support for a wide range of batteries (Deye BOS-G, BYD, Pylontech, Dyness), the Polish-language Solarman Smart / Solarman Cloud monitoring application, and compliance of all models with the requirements of national Distribution System Operators and European standards. The products meet the standards International Electrotechnical Commission (IEC), which are a global benchmark for the safety of inverters and batteries.

External resources: The energy regulatory office.

Experience and credibility – PVGroup.pl

Experience: PVGroup.pl has been operating in the Polish photovoltaic market since 2019. We have completed hundreds of PV and energy storage installations – from residential micro-installations to farms and C&I projects. We work directly with the manufacturer and authorized service center Deye.

Expertise: Our team of electrical engineers with current SEP certifications selects inverters, batteries, and energy storage systems to meet real customer needs every day. We offer technical advice, design, and calculation support for installers, including those with unique hybrid configurations.

Authority: PVGroup.pl jest Deye distributor in PolandThis means official status in the sales channel, access to the manufacturer's authorized service center and the full Deye warranty. Deye SUN-18K-SG05LP3-EU-SM2More about the manufacturer: Deye official website.

Trust: We are a Polish company – we issue Polish VAT invoices, offer a manufacturer's service warranty, secure payments, and transparent B2B terms. Our returns and complaints policy complies with Polish law. Full company details, including the Tax Identification Number (NIP), and contact information can be found on our website. About Us and Contact.

Support, Warranty and Compliance

• Deye distributor in Poland – original products, service warranty, VAT invoice.
• manufacturer's warranty – Standard 5-year warranty on inverters, up to 10 years on selected batteries. Extensions available as separate SKUs.
• Compliance with PL requirements – devices compliant with EN 50549, NC RfG and PPDS OSD requirements.
• Technical Assistance – assistance with selection, configuration, and commissioning. Warranty and post-warranty service.
• B2B implementation – check availability on the product card or contact the sales representative.