Circuitry overview with battery-backup system and optional transfer switch

Circuitry overview with battery-backup system and optional transfer switch (example)
Footnotes:
opens during battery-backup operation and with disabled AC backup
closes only during battery-backup operation
grounding conductor is to be connected during activated battery-backup operation and connected to the grounding busbar in addition
optional manual switch
for supplying the entire house
for low-noise operation of the inverter
additionally, the inverter is to be parameterized according to the operating mode