Family home or business? How to choose the right Deye system in 2026

Why the choice differs for a household and for a business

Deye offers a single product range, but two entirely different deployment paths. A family home deals with consumption of a few to a few dozen kWh per day, and what matters most is easy installation and a quick payback. A business or industrial operation deals with hundreds of kWh up to MWh, and the deciding factors are mainly peak load, tariffs and the contractually reserved capacity.

Below is a brief guide to which system fits where — and what to watch out for when moving from one segment to the other (for example when a family business expands into a larger operation).

Family home: LV inverters 6–12 kW

For both ordinary and above-standard family homes we recommend low-voltage (LV, 48 V) hybrid inverters:

• Single-phase connection — LV single-phase hybrid inverters, SUN-6/8/10/12K-SG05LP1-EU series (6–12 kW)
• Three-phase connection — LV three-phase hybrid inverters, SUN-8/10/12/15/20K-SG05LP3-EU series (8–20 kW)
• Batteries — LiFePO4 LV batteries 5.1–16 kWh, for example SE-F12-C LV (11.8 kWh)

A typical configuration of SUN-10K-SG05LP3-EU + SE-F12-C LV covers a house with a consumption of 6,000–10,000 kWh/year and, at typical EU electricity prices, usually pays for itself within 6–8 years.

Business and industry: HV inverters and C&I solutions 25 kW – 4 MW

For company roofs, production halls and warehouses it pays to move to high-voltage (HV) systems — lower currents, smaller cable cross-sections and higher efficiency at high power:

• HV hybrid inverters — HV three-phase hybrid inverters 29.9–80 kW, for example SUN-30K-SG01HP3-EU
• High-voltage (HV) batteries and rack systems — HV batteries + Rack, BOS-G/BOS-A/BOS-B modules up to hundreds of kWh
• Complete C&I solutions — C&I commercial solutions: the all-in-one GE-F120-2H2 (50 kW / 122.8 kWh) and the battery cabinet GE-F256 (257 kWh) for plants and logistics sites

For these projects we recommend requesting an individual quotation — at sizes above 25 kW, optimisation based on the measured load profile and the reserved capacity plays a major role.

Quick decision overview

• Up to 12 kW, LV, 48 V → family home, flat, small operation
• 15–20 kW, LV or HV → large family home, small business, first expansion stage
• 30–80 kW, HV → company roof, smaller operation
• Above 100 kW, C&I → production plant, warehouse, industrial site — tailor-made solution

If you are not sure which category your project falls into, send us your grid connection parameters and annual consumption — we will advise on the choice of a specific model.