Why is my inverter doing this?

[SolarLover]

Growatt SPH3000 inverter

Why on earth is the stupid inverter pulling off the grid when there’s 11kwh in the battery

 

[Barx]

What is the opertaion mode set to?
Has it always done this?
the operation mode may be set to backup priority or only start discharging fully after a certain time.

 

[SolarLover]

Trying to understand the Growatt SPH3000 via their Shine Phone app is a black art see attached

 

[Barx]

I haven't fit any of these, so it's not like I know them like the back of my hand and this info could be wrong.
but
It looks like the inverter operation mode is 'Bat First'. Now the blurb from the manual states...

2.Battery first: when SPH working in this mode, battery would be charged first, it's
suitable working on the period when the electric charge is low. user need to set the
mode ON and OFF time, and the end time of battery SOC. user can set power rate
which less than the battery maximum output power. If the customer don't enable
the AC CHG (AC grid charging function). Inverter will charge battery by PV power as
large as it can do. If the customer enable the AC CHG (AC grid charging function).
Inverter will charge battery by PV power and AC power from grid as large as it can do.

Not the easiest chinglish to understand mind.

I 'think' you need Load Fist operating mode. which is stated as

1.Load first: load first is the default mode, when it's working in this mode, PV energy
would offer to load and battery prior; when PV is Insufficient, battery would
discharge; when PV is sufficient for load ,the excess energy would feed to battery. if
there is no battery or battery is full ,the excess energy would feed to Grid(except anti
-reflux ).

Does that look more like what you are expecting to happen?

May be worth consulting someone who knows the inverters better. Or, if you like to tinker, just remember what you change in case you need to change it back

 

[binky]

EPS maybe wrong - I'm guessing that's another term for UPS, so it would keep charge in the battery. Grid volatge lower limit is also wrong, should be more like 225V. Power factor zero also looks wrong to me? I would be inclined to give the Growatt technical helpline a call

 

[SolarLover]

I haven't fit any of these, so it's not like I know them like the back of my hand and this info could be wrong.
but
It looks like the inverter operation mode is 'Bat First'. Now the blurb from the manual states...


Not the easiest chinglish to understand mind.

I 'think' you need Load Fist operating mode. which is stated as



Does that look more like what you are expecting to happen?

May be worth consulting someone who knows the inverters better. Or, if you like to tinker, just remember what you change in case you need to change it back

Ha ha yes you need a degree to translate this as Google would even suffer

It’s not at all intuitive on how to set these up even with the simple menus but I guess it’s tinker time as my installer is pretty useless supporting me

Thanks for your help

 

[SolarLover]

EPS maybe wrong - I'm guessing that's another term for UPS, so it would keep charge in the battery. Grid volatge lower limit is also wrong, should be more like 225V. Power factor zero also looks wrong to me? I would be inclined to give the Growatt technical helpline a call

I emailed them twice

They come back saying which country are you from

I reply

And into the ether the query goes

Not the best support so need to find a number

Thanks

 

[SolarLover]

EPS maybe wrong - I'm guessing that's another term for UPS, so it would keep charge in the battery. Grid volatge lower limit is also wrong, should be more like 225V. Power factor zero also looks wrong to me? I would be inclined to give the Growatt technical helpline a call

Wonder if firmware also needs an update from base firmware? As it’s v1.0

 

[binky]

UK helpline

 

[SolarLover]

UK helpline

Thanks