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FRONIUS - RESERVA - Battery module
FRONIUS - RESERVA - Battery module - 3
European manufacturing

FRONIUS Battery RESERVA solar panel - Module - 4.230.370

Réf. POwR : AR0766

  • 10-year manufacturer's warranty

Technical specifications

  • Capacity: 3.15 kWh
  • From 2 to 5 modules per battery pack
  • Dimensions: (LxWxH) 250 x 780 x 176 mm

That goes well with

These items are often associated with FRONIUS - RESERVA - Battery Module:

The highlights

  • Using photovoltaic energy, even at night.
  • Alternative backup power supply options depending on demand.
  • Simultaneous power supply and charging possible when using a backup power supply.
  • High rates of self-consumption and self-sufficiency
  • Unrivaled system efficiency thanks to DC coupling.
  • From September 2025, end customers who purchase a Fronius Reserva battery will receive a voucher for 3 months of free Solar.web Premium. This offer aims to promote the Fronius Energy Cost Assistant (ECA) – an intelligent tool configurable via Solar.web that optimizes battery usage by adapting to flexible electricity tariffs.

Description

The Fronius Reserva 3.15 kWh battery module is a high-voltage storage element designed for modular Fronius Reserva systems. Based on lithium iron phosphate (LFP) technology, this module integrates into a scalable architecture that allows for precise adaptation of storage capacity to the site's energy needs.

Each module provides a nominal capacity of 3.15 kWh and can be stacked 2 to 5 units per battery pack, offering a total capacity of between 6.3 and 15.76 kWh per tower. High-voltage DC coupling with Fronius GEN24 and GEN24 Plus inverters allows for direct use of photovoltaic energy, even outside of production periods, with optimized efficiency.

The Fronius Reserva system allows for various backup power scenarios, with the possibility of simultaneous charging and discharging in backup mode, depending on the chosen configuration. This approach promotes high rates of self-consumption and energy self-sufficiency, while maintaining consistent management of electrical flows.
The module comes with a 10-year manufacturer's warranty.

KEY POINTS FOR PROFESSIONALS
• 3.15 kWh storage module for Fronius Reserva system.
• LFP technology suitable for long-term use and repeated cycles.
• DC coupling operation for optimized energy efficiency.
• Use of photovoltaic energy is possible even in the absence of production.
• Backup power supply configurable according to site needs.
• Simultaneous charging and discharging possible in backup mode.
• Contribution to high levels of self-consumption and self-sufficiency.
• From September 2025, manufacturer offer including 3 months of Solar.web Premium for end customers, integrating the Fronius Energy Cost Assistant (ECA) for storage optimization according to tariff grids.

RECOMMENDED APPLICATIONS
• Residential installations with Fronius Reserva storage.
• Projects incorporating a partial or total backup power supply.
• Photovoltaic systems aimed at increasing self-consumption.
• Configurations requiring a gradual increase in storage capacity.

ADDED VALUE POWR CONNECT
POwR Connect offers the Fronius Reserva 3.15 kWh module with stock availability and technical support for the configuration of Fronius storage systems.
The teams POwR Connect They assist installers in sizing capacities, inverter-battery compatibility and integrating advanced energy management functions.

Documents to download

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FRONIUS

FRONIUS

A leading international company in the fields of solar energy and battery chargers, partner of POwR Connect

For 30 years, Fronius Solar Energy has been developing products such as Solar inverters and innovative digital solutions and tools to produce, store, distribute and consume solar energy in a profitable and intelligent way.
Fronius is thus a guarantee of innovations that enrich the lives of individuals and businesses with solar energy, according to their motto "Energize your life". 

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