{"id":89933,"date":"2026-10-09T14:45:22","date_gmt":"2026-10-09T12:45:22","guid":{"rendered":"https:\/\/www.vpsolar.com\/?p=89933"},"modified":"2026-10-09T14:45:22","modified_gmt":"2026-10-09T12:45:22","slug":"fronius-solar-energy-inverters-and-battery-storage-for-residential-and-ci-pv-systems","status":"publish","type":"post","link":"https:\/\/www.vpsolar.com\/en\/fronius-solar-energy-inverters-and-battery-storage-for-residential-and-ci-pv-systems\/","title":{"rendered":"Fronius Solar Energy: inverters and battery storage for residential and C&I PV systems"},"content":{"rendered":"

Fronius Solar Energy<\/strong> offers inverters, battery storage systems and monitoring tools for residential, commercial and industrial photovoltaic installations. The GEN24, Verto and Tauro<\/strong> ranges, together with the Reserva<\/strong> battery, provide installers, system designers and EPC contractors with a variety of configuration options, from PV generation for self-consumption to the integration of battery storage and backup power.<\/p>\n

Selecting the right solution requires an assessment of power ratings, grid connection type, PV array characteristics and consumption profiles, alongside the compatibility requirements of each model.[vc_row][vc_column][vc_column_text]<\/p>\n

Cybersecurity throughout the product lifecycle<\/h2>\n

Fronius incorporates cybersecurity<\/a> into product development based on the principles of Security by Design<\/strong> and Security by Default<\/strong>, addressing protection from the design stage and through default settings.<\/p>\n

This approach includes secure coding practices, regular security reviews, independent penetration testing and risk-based security management. Fronius also operates an Information Security Management System (ISMS) certified to ISO\/IEC 27001<\/strong>, with security controls continuously assessed and updated. This certification applies to the company\u2019s information security management system.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]<\/p>\n

GEN24 and GEN24 Plus for residential and small commercial applications<\/h2>\n

The Fronius GEN24 range includes single-phase and three-phase inverters, with Plus versions offering hybrid functionality<\/strong> for connecting compatible batteries.<\/p>\n\n\n\n\n\n\n
Range<\/strong><\/td>\nConnection<\/strong><\/td>\nPower ratings covered<\/strong><\/td>\n<\/tr>\n<\/thead>\n
Primo GEN24 and GEN24 Plus<\/strong><\/a><\/td>\nSingle-phase<\/td>\n3; 3.6; 4; 4.6; 5; 6 kW<\/td>\n<\/tr>\n
Symo GEN24 and GEN24 Plus<\/strong><\/a><\/td>\nThree-phase<\/td>\n3; 4; 5; 6; 8; 10 kW; 12 kW in the SC version<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Model designations and specifications must be checked against the documentation for the relevant variant, distinguishing between GEN24, GEN24 Plus and SC models.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]What is the difference between GEN24 and GEN24 Plus?<\/strong> GEN24 enables the installation of a PV system with the option to activate hybrid functionality at a later stage through Fronius UP.storage<\/strong>, subject to the manufacturer\u2019s conditions. GEN24 Plus already includes battery storage functionality. Backup options depend on the model and the components installed. Further details are available in the Fronius GEN24 Plus installation guide<\/a>.<\/p>\n

For system designers, this distinction supports the assessment of both installations with battery storage from the outset and configurations designed for future expansion.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=””]<\/p>\n

Fronius Reserva: modular high-voltage battery storage<\/h2>\n

Fronius Reserva<\/strong> is a DC-coupled, high-voltage battery using lithium iron phosphate (LFP)<\/strong> cells. Its modular design comprises two to five modules.<\/p>\n\n\n\n\n\n\n\n\n
Model<\/strong><\/td>\nNumber of modules<\/strong><\/td>\nUsable capacity<\/strong><\/td>\n<\/tr>\n<\/thead>\n
Reserva 6.3<\/td>\n2<\/td>\n6.31 kWh<\/td>\n<\/tr>\n
Reserva 9.5<\/td>\n3<\/td>\n9.47 kWh<\/td>\n<\/tr>\n
Reserva 12.6<\/td>\n4<\/td>\n12.63 kWh<\/td>\n<\/tr>\n
Reserva 15.8<\/td>\n5<\/td>\n15.79 kWh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The system integrates with compatible Fronius hybrid inverters and Solar.web<\/strong> monitoring. According to the manufacturer, data collected through Reserva is managed and stored exclusively on European servers.<\/p>\n

System sizing must take into account the energy storage requirement, charging and discharging power, and compatibility between the inverter and battery configuration. Specifications are available on the Reserva page<\/a>.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=””]<\/p>\n

Full Backup and manual changeover<\/h3>\n

In compatible configurations, the Fronius Backup Switch<\/strong> enables manual changeover from grid-connected operation to backup power. Full Backup requires an inverter with the relevant functionality enabled, a compatible battery and the specified changeover components.<\/p>\n

Availability must be checked for the exact model. For example, Fronius documentation states that non-SC versions of the Symo GEN24 Plus 3\u20135 kW do not support the Full Backup option<\/strong>. Further information is available on the Fronius GEN24 Plus page<\/a>.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=””]<\/p>\n

Verto and Verto Plus for commercial and industrial applications<\/h2>\n

The Fronius Verto<\/strong><\/a> range is designed for commercial and industrial (C&I), agrivoltaic and multi-occupancy residential applications, including rooftops with different orientations and tilt angles.<\/p>\n\n\n\n\n\n\n\n
Range<\/strong><\/td>\nPower ratings<\/strong><\/td>\nMPPT trackers<\/strong><\/td>\n<\/tr>\n<\/thead>\n
Verto 15\u201325 kW<\/strong><\/td>\n15; 17.5; 20; 25 kW<\/td>\n3<\/td>\n<\/tr>\n
Verto 27\u201333.3 kW<\/strong><\/td>\n27; 30; 33.3 kW<\/td>\n4<\/td>\n<\/tr>\n
Verto Plus<\/strong><\/td>\n15; 17.5; 20; 25; 30; 33.3 kW<\/td>\n3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Maximum power point trackers (MPPTs)<\/strong> enable sections of the PV array operating under different conditions to be managed independently, within the electrical limits of the inverter inputs.<\/p>\n

Verto Plus is the hybrid version<\/strong>, supporting compatible batteries and three-phase Full Backup when installed with battery storage and external changeover components. Verto also incorporates arc fault circuit interrupter (AFCI)<\/strong> functionality, referred to in the range as Arc Guard, to help improve system safety.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=””]<\/p>\n

Tauro and Tauro ECO for higher-power PV systems<\/h2>\n

Fronius Tauro and Tauro ECO<\/strong> complete the portfolio for larger commercial and industrial installations. The family covers the 50 and 100 kW power classes<\/strong>, with models and variants selected according to project requirements.<\/p>\n

The manufacturer highlights configuration flexibility, optimisation of balance of system (BOS) costs, and a design focused on straightforward installation and maintenance. Further details are available on the Fronius Tauro ECO product page<\/a>.<\/p>\n

For installers and EPC contractors, the assessment should include PV string configuration, environmental conditions, access for servicing and monitoring integration. The Fronius Tauro product page for C&I installations<\/a> is available on the VP Solar website.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column]