The Fronius Reserva turns your PV system into a complete solution – safe, efficient, and flexible. With capacities ranging from 6.3 to 15.8 kWh, the battery adapts perfectly to your requirements and impresses with its slim design, even in confined spaces. The durable and safe lithium iron phosphate technology ensures maximum operational reliability and longevity. The Fronius Reserva fits seamlessly into the Fronius ecosystem: in combination with a Fronius hybrid inverter, your PV system becomes capable of providing backup power – giving you the peace of mind that you can count on your own energy at all times.