Conducted annually in Berlin, the Energy Storage Inspection is considered Europe’s paramount study on the topic of system efficiency for PV storage systems. Overall, the Fronius GEN24 Plus and BYD Battery-Box Premium duo has been among the most efficient solutions for the fifth consecutive year.
Fronius highly values this independent study, as it accounts for not only the inverter conversions efficiency but also the relevant losses of a storage system, enabling a holistic assessment and increasing transparency.
The Energy Storage Inspection
Independent testers assess the overall efficiency of storage systems, analysing the interaction between a hybrid inverter and a battery storage. Two different reference cases are used for evaluation.
The first case analyses the SPI (System Performance Index) for a 5 kW PV system with an annual household consumption of 5,010 kWh. In the 5 kW reference case, the Fronius Primo GEN24 6.0 Plus, together with the BYD Battery-Box Premium HVS 7.7, achieves an SPI of 92.6%.

The second reference case combines a 10 kW PV system with a heat pump (2,664 kWh/year) and an electric car (1,690 kWh/year), along with an annual household consumption of 5,010 kWh. In the 10 kW reference case, the Fronius Symo GEN24 10.0 Plus, paired with the BYD Battery-Box Premium HVS 10.2, achieves an SPI of 95.4%.
As Julian Poßegger, technical support at Fronius, explains, “Together, the two components shine, especially in terms of system efficiency and high charging and discharging capabilities.”
For more information, visit Fronius
A new town centre and a land-lease village of up to 364 homes are proposed for Yalyalup, as ...
Melbourne’s historic Jam Factory is being reimagined as a $4 billion mixed-use precinct, with GURNER aiming to turn ...
Delivering a high-performance building requires more than specifying efficient products. At The Illawarra Grammar School in Wollongong, the ...
A 1ha section of surface car parking at Salisbury Downs' Hollywood Plaza could make way for a new ...
The first building in a new city carries an unusual responsibility. It has to meet an immediate need ...
Specifier Source is brought to you by the same company that publishes Home Design, Grand Designs Australia Magazine, Kitchens & Bathrooms Quarterly Magazine, Outdoor Design Source, Build Home, CompleteHome and many more.