The Growatt SPF 3500 ES Off-Grid Inverter is one of the best off-grid inverters on the market, which is ideal for stand-alone systems (e.g. summer house or allotment, etc.). With this 3500 W inverter, you can keep several devices running at the same time. Of course, the inverter has a built-in MPPT tracker so that you can get the maximum benefit from your solar panels. It is possible to connect external power to the off-grid inverter either from the mains or a gasoline generator in case the battery is discharged and the solar panels are not providing the required power.

The Growatt SPF 3500 ES is suitable for a maximum panel voltage of 450 V DC and can be used with or without a battery (48V). If you want to use a battery, you can either use the appropriate ones from Growatt (Growatt ARK LV or GBLI6532) or you can assemble a 48V battery yourself, for example from 4 x 12 V or 2 x 24 V.

If the capacity of a single SPF 3500 ES is not large enough, you can connect up to six units in parallel to increase the total output to up to 21kWh.

The integrated MPPT charge controller optimizes the charging and discharging of the battery. Charging priorities can be set, e.g. charging from the solar system is preferred to charging from the grid if solar power is available.

The inverter can be monitored via WLAN. You can use the separately available "Wi-Fi-F dongle" for this purpose. Growatt offers an intelligent online service for remote troubleshooting of technical problems and updates. As a Growatt customer, customer service is available to you around the clock, 365 days a year. This means that you can intervene yourself in the event of a fault and rectify it with the help of customer service. These functions and services make the inverter a safe choice for your solar system.

Installing the inverter

Detailed installation instructions can be found in the download section. We do not offer technical support for the Growatt SPF 3500 ES off-grid inverter and self-built battery systems etc. Instead, read the Growatt manual and consult an electrician if necessary.

Warranty:

2 year manufacturer's warranty

Scope of delivery:

1x SPF 3500 ES off-grid inverter