Sungrow SH6.0RS Inverter 6kW single-phase hybrid

The inverter is the part that turns the current produced by the panels into the ordinary current in the sockets of the house. The hybrid one does two more things: it decides by itself, at every moment, whether the energy goes to the loads, into the battery or into the grid, and during a power outage it moves the house onto the battery so fast that the appliances do not even get to stop. It has two independent panel inputs, called MPPT, which means the panels can be mounted on two different roof slopes without the weaker group hindering the better one.

It is sized for a home with a single-phase connection: it delivers 6.000 W continuously, that is it can support at the same time the usual loads of a house, and on the panel side it accepts up to 9.000 Wp recommended, with an absolute limit of 13.000 Wp. The battery is charged and discharged with up to 6.600 W, so in the evening the house can run on the battery including with large appliances switched on, not only with the refrigerator and the light. On a grid failure, the backup output supports 6.000 W, with a peak of 8.400 VA for 10 seconds, enough to start a pump motor or an air-conditioning unit, and the switching under 10 ms is too short for a computer or a heating boiler to reset. If the battery is left empty after a cloudy day, it can be recharged from the grid, the inverter drawing up to 13.000 VA. The European efficiency of 97,3% shows that the losses on the way from panel to socket are small, and the IP65 enclosure allows mounting including on an outside wall.

DC input maximum 600 V, two independent MPPTs with one string each, working range 40-560 V, rated voltage 360 V, start-up from 50 V; maximum input current 32 A (16 A per MPPT), Isc 40 A. Lithium-ion battery port 80-460 V, 30 A on charge and on discharge, 6.600 W maximum power; AC output 6.000 W / 6.000 VA at 220/230/240 V (154-276 V), 27,3 A, THD below 3%, THDv below 2% in backup mode. Maximum efficiency 97,7% and European 97,3%, transformerless construction, IP65, 490x340x170 mm, 18,5 kg, natural cooling, below 45 dB, -25...+60 C, altitude 4.000 m; type II SPD on DC and AC, DC disconnector, leakage current and reverse polarity protection, PID Zero function, master-slave parallel operation of up to 3 inverters. Communication RS485, Ethernet, WLAN and CAN, DI x4 / DO x1 / DRM; compliant with IEC/EN 62109-1/-2, EN 50549-1, CEI 0-21, G98/G99, IEC 61727, IEC 62116, AS/NZS 4777.2:2020.

Who it suits

Suitable for a house with a single-phase connection and an installation of up to 9 kWp, which wants to use in the evening the energy produced during the day and to stay powered during power interruptions.

Terms explained

• MPPT: The circuit that permanently looks for the point where the panels give the most power; two independent MPPTs mean two groups of panels that can have different orientations.
• Hybrid inverter: An inverter that also works with a battery, not only with panels and grid, and which decides by itself where it sends the energy at every moment.
• European efficiency: A weighted average of the efficiency, measured at several power levels, which shows more realistically than the maximum efficiency how much is lost over a year.

Technical specifications

Recommended applications

• Single-phase homes with self-consumption and storage
• Systems with backup supply on grid failure
• Retrofit on existing photovoltaic installations
• Self-consumption with fast battery charging from the grid

Technical details

Specifications confirmed from the manufacturer's datasheet

Sungrow SH6.0RS is the single-phase hybrid inverter of 6 kW from the SH RS series. The DC input accepts a maximum of 600 V, with two independent MPPT trackers (one string each), working range 40-560 V, rated voltage 360 V and start-up from 50 V. The maximum input current is 32 A (16 A per MPPT), and the short circuit one 40 A. The maximum recommended photovoltaic power is 9000 Wp, with an absolute limit of 13000 Wp.

The lithium-ion battery is connected in the range 80-460 V, with 30 A maximum charge and discharge current and 6600 W maximum charge/discharge power. On AC it delivers 6000 W / 6000 VA single-phase at 220/230/240 V (154-276 V), 27,3 A, THD below 3%, and from the grid it can draw up to 13000 VA for fast charging of the battery. The backup output supports 6000 W, with a peak of 8400 VA for 10 s, switching under 10 ms and THDv below 2%.

Maximum efficiency 97,7% and European 97,3%. Transformerless construction, IP65, 490x340x170 mm, 18,5 kg, natural cooling, below 45 dB, -25...+60 C, altitude 4000 m. It includes type II SPD on DC and AC, DC disconnector, leakage current and reverse polarity protection, PID Zero function and master-slave parallel operation of up to 3 inverters. Communication RS485, Ethernet, WLAN and CAN, DI x4 / DO x1 / DRM. Compliant with IEC/EN 62109-1/-2, EN 50549-1, CEI 0-21, G98/G99, IEC 61727, IEC 62116, AS/NZS 4777.2:2020.