Fronius solar kit 7.08kWp with 6.3–9.45kWh storage – Symo GEN24 6.0 Plus 6kW three-phase hybrid inverter7.08kWp three-phase kit with 6kW Fronius hybrid inverter and 6.3 or 9.45kWh storage

Overview

7.08kWp of PV, the Fronius Symo GEN24 6.0 Plus three-phase hybrid inverter and a Fronius Reserva tower with two or three 3.15kWh modules (6.3 or 9.45kWh), plus the Fronius Smart Meter and DC and AC protection boxes. The inverter accepts up to 9kWp of PV on two MPPTs, the first taking 25A for high-current modules, and charges the battery at 22A. PV Point backup is built in; three-phase Full Backup needs extra Fronius switchover parts.

• Fronius Symo GEN24 6.0 Plus or 12.0 Plus SC inverter
• Reserva (3.15kWh) or Reserva Pro (3.98kWh) LFP modules
• Fronius Smart Meter and protection boxes included
• Three-phase Full Backup with external switchover parts
• PV Point single-phase emergency output on every model
• Fronius Solar.web monitoring via built-in WLAN or LAN

What's in the kit

• 1 × Fronius Symo GEN24 6.0 Plus
• null × PV modules, 7.08kWp in total
• null × Fronius Reserva module 3.15kWh (2 or 3, depending on the storage variant)
• 1 × Fronius Reserva BMS and base
• 1 × Fronius Smart Meter
• null × DC and AC protection boxes

How the kits work

The Symo GEN24 Plus inverter converts the PV field, charges a DC-coupled Fronius battery and supplies the building and grid. A Fronius Smart Meter measures the grid exchange so the inverter can store surplus instead of exporting it. Reserva and Reserva Pro are stackable towers of a base, battery modules and a BMS on top; the BMS talks to the inverter over RS485 or Modbus and the state of charge appears in Fronius Solar.web.

Inverter and battery pairing

The 7.08kWp kit uses the Symo GEN24 6.0 Plus with a Reserva tower of two or three 3.15kWh modules (6.3 or 9.45kWh). The 14.16kWp kit uses the Symo GEN24 12.0 Plus SC, the updated generation with integrated Arc Guard arc detection and up to 18kWp of PV, with a Reserva Pro tower of four or six 3.98kWh modules (15.92 or 23.88kWh). Fronius approves Reserva with 2–5 modules and Reserva Pro with 3–8 modules on these inverters.

Backup functions

Every GEN24 has PV Point, a single-phase 3kVA emergency circuit that restarts about 15 seconds after a grid failure while PV or battery power is available. The 6.0 Plus and 12.0 Plus SC also support three-phase Full Backup at rated power, with a switching time of about 10 seconds, once a Fronius Backup Controller or Backup Switch and the related protection are installed; these parts are not part of the kits.

Installation and what to add

Reserva and Reserva Pro are IP65 and can be installed indoors or in protected outdoor areas from -20°C, with 300mm recommended on each side; DC cables to the inverter may run up to 30m (Reserva) or 40m (Reserva Pro). Fronius recommends a 16A or 32A automatic breaker for the 6.0 and 12.0 respectively. The installer adds mounting structures, string cabling, Full Backup components if wanted and the grid connection request.

Questions and answers