FoxESS Community - Owners & Installers Forum

Today I've been testing the new grid meter compensation setting which allows you to set the inverter to always push back a tiny bit instead of drawing from the grid.

Thanks for the update Will.

I've had my system for less than a week and one of the first things I noticed was the constant grid usage of a tiny amount. This sounds great to solve that but I'm curious as to the technical reason why this happens? And why is pushing back to the grid a solution for it?

Cheers
Scott

Scott wrote: Tue Jan 14, 2025 11:11 pm This sounds great to solve that but I'm curious as to the technical reason why this happens? And why is pushing back to the grid a solution for it?

Cheers
Scott

The inverter is grid tied which means it has to syncronise to the grid and match the load power it measures on its meter/ct - it maintains a very small bias (current flow) from the grid (in self-use) and towards the grid (in feed-in) to maintain it’s syncronisation so that it can detect grid loss quickly and disconnect (by regulations).
I had a go at a more technical answer in this post if you are interested https://foxesscommunity.com/viewtopic.php?p=4135#p4135

Hi Dave,

Thanks for the reply.

I had a read of the more technical description you wrote, while some of it was beyond me its given me a better understanding of how it works.

I'm pretty new to solar, and I'm not particularly cluded up on electricity in general so it's great to be able to learn how it actually works.

Scott wrote: Wed Jan 15, 2025 9:29 am Hi Dave,

Thanks for the reply.

I had a read of the more technical description you wrote, while some of it was beyond me its given me a better understanding of how it works.

I'm pretty new to solar, and I'm not particularly cluded up on electricity in general so it's great to be able to learn how it actually works.

Hi no problem, and welcome to the world of solar.

You’ll be pleased to know I don’t often go that technical but the question of the slight power usage comes up regularly and in that case they were looking for a descriptive answer. This feature whilst quite small is quite a significant one for those of us that are trying to eliminate any power usage from grid

Is there any chance this will be made possible on the H1 gen 1 in the future? It always uses about 0.3kWh per day at the peak rate so it would save about £30 per year alone.

Here is hoping this new setting comes to the H1 gen 1 inverter. Particularly for the winter months as this small draw from grid often adds up to 300watts a day which over time really adds up. I manually set mine to feed in over night which helps reduce this but it's a bit of a pain to remember to do.