On-grid domestic battery storage

Starfrog

west coast of Scotland for the past four days has been brilliant for solar production for me, its literally at its maximum production, that sea are really helps with keeping snow to a minimum at the coast

EVandPV

Starfrog said:

west coast of Scotland for the past four days has been brilliant for solar production for me, its literally at its maximum production, that sea are really helps with keeping snow to a minimum at the coast

We're only about 4 miles from the coast but not quite close enough to benefit from the salt.
Plus we're about 400' above sea level so we get a fair bit of wind and snow.
Still got a small patch of snow on one of our panels form Tuesday's fall.

Starfrog

I'm literally 60 metres away from the sea. 

EVandPV

Starfrog said:

I'm literally 60 metres away from the sea. 

Lovely part of the country. Done a lot of fly fishing all around Sutherland.
I'd move up there in a flash but too remote for the Mrs. 

Starfrog

its 2021 nowhere is remote its just a time difference to non remote places ! 

EVandPV

Starfrog said:

its 2021 nowhere is remote its just a time difference to non remote places ! 

Try telling that to my wife. 😁

Starfrog

Erm..... I dont have her number 

Starfrog

Still nothing back from the links provided and contacting Aoboet direct, theres no rush to get the additional batteries as i want to see the performance of the current setup but would be nice to be able to source the batteries at least.

Starfrog

sorry upfront if im using the wrong terminology but im trying my best looking at my solar production over the last two weeks and I notice when its a good day of winter sun im generating circa 20kwh, which from my panels I know I can produce more but is restricted to the inverter only allowing 3.6kwh ? I know thats a restriction on the amount I can export but if I ever get a consumption demand higher than the 3.6 and what my batter gives out combined then it always draws power from the grid. My question is can I use a larger inverter to allow for maximum panel production to be used by the house and the batteries but still restrict any export to 3.6 ? my thinking is if I have a solar array with the capacity of 5460khw then im potentially losing 1800 capacity due to the inverter being restricted to the 3.6, I may be understanding this completely wrong but just want to get the most out of the system 

EVandPV

Hi Starfrog, forget your Lux for a moment as that just controls your batteries.
Your pv generation is converted from dc to ac by your microinverters so the max pv generation your system can reach will be dictated by the spec of the microinverters.
With a 5.46kw array, I would expect your microinverters to be capable of something like 5kw at full power. The max power of the inverter is usually rated slightly lower than the total power of your panels.
At this time of year, my pv inverter is reaching about 80% of it's full power in the middle of a good sunny day.
What power are you seeing from the panels on the Enphase app in the afternoon when the sun is out ?