Not necessarily, but most inverters (in Europe, at least) aren't designed to function without a grid anyway.
Some models of inverter brands like Victron (which isn't very common outside its niche of self-sufficiency because they are rather expensive and sometimes complex) can form a micro-grid. They have the option of a special circuit breaker [1] that decouples the inverter from the grid if the grid is detected to be down, which allows their use during a power outage.
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These inverters have to switch off if they cannot detect a grid signal, or if the grid frequency/voltage goes out of the safe range.
Same legislation as the non-plug&play inverters.
Does this mean if you have a main grid power outage the solar panel cannot provide your house with power either?
Not necessarily, but most inverters (in Europe, at least) aren't designed to function without a grid anyway.
Some models of inverter brands like Victron (which isn't very common outside its niche of self-sufficiency because they are rather expensive and sometimes complex) can form a micro-grid. They have the option of a special circuit breaker [1] that decouples the inverter from the grid if the grid is detected to be down, which allows their use during a power outage.
[1] https://www.victronenergy.com/accessories/anti-islanding-box...
Mine (Ecoflow Stream Ultra) has two 1200W regular sockets I can use while the grid down.
Yes.