The May family’s photovoltaic system in southern Australia differs from other systems in that the components have been installed in phases. The 7.3 kWp roof-mounted system with Fronius Symo Hybrid 5.0-3-S hybrid inverter was originally brought online in 2015. This was followed three years later by the installation of a BYD Battery-Box H 9.0.
|Compatibility of a Fronius Symo Hybrid with a battery can be easily established via a remote software update.|
The Fronius Symo Hybrid working in combination with the BYD Battery-Box HV offers true three-phase backup power. In the event of a power outage, three-phase loads such as the electric cooker can be supplied with PV energy.
The May family controls their energy-intensive loads directly via the inverter so that they can perfectly match consumption with PV production. This can be seen in the load profile via the Fronius Solar.web online platform in combination with the Fronius Smart Meter.
As soon as a defined PV surplus threshold is reached, large loads such as a pool pump or heat pump are switched on. With these measures, the family achieves an average self-consumption rate of 70%.
The BYD Battery-Box HV is based on LiFePO 4 technology (lithium iron phosphate), making it the most reliable storage technology.
The advantages of the Fronius Symo Hybrid and BYD Battery-Box HV combination
|Size of installation||7.3 kWp|
|System type||Roof-top installation|
|Inverter||Fronius Symo Hybrid 5.0-3-S|
|Energy management||Fronius Smart Meter|
|Storage system||BYD Battery-Box H 9.0|
|System monitoring||Fronius Solar.web|
|Commissioned||September 2015. Expansion 2018|
|Annual yield||11,000 kWh|
|CO2 savings / year||6 to|