Limiting solar usage and/or exporting excess to grid.

GivEnergy Products GivEnergy Cloud Portal
1

Hi there, I have a bit of a situation with my automations and I am wondering if it is possible to get the desired outcome with the GivEnergy settings alone.

I have a 5.12GivBat with 5.5kwh solar array and a 5kw inverter, my daily usage is somewhere around 5kw so most of the time a full battery is enough to see my through the day. This is especially beneficial as I am on IOG tariff at 7p/kw.

Therefore my question is twofold:

  • Can I prevent my home using solar energy during the day? Using the 7p energy in the battery is cheaper than using the 15p energy I could be exporting to the grid. Based on the setup this is probably unlikely, as I understand that the inverter just “sends” all that energy to the meter, where it either gets consumed by the home, or exported.

  • Can I export to the grid, down to a certain % but maintain home demand after export % is reached? I have had some success setting my export to 50% from 7-8pm. This continues to power the home whilst exporting to the grid, however once the 50% limit is reached the battery stops all discharge and the home starts drawing from the grid.

I guess some of this may be possible with more complex automations via HomeAssistant, however I was wondering if the GivEnergy tools provided any utility for this. Essentially I am looking to maximise my 15p export vs my 7p home usage.

Thanks in advance,
Matt

2

Hey,
The only way I know to achieve this would be to drop the maximum charging rate of the battery on the sunny days to prevent all solar generation going to the battery and in turn forcing it to export instead.

That’s what I’m aiming to do in the summer.

Thanks

3

Hey,
Did a little more digging into this.
I did find within the meters of both my Gateway and AIO 13.5 this setting:

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Not sure if you have this option on your gear. But maybe grid first might get your desired result?
Thanks
Bob

4

Thanks for the reply,

I’ve had a play with these settings in the past and couldn’t actually work out if they were making a difference! Might wait for a sunny day and try toggling them for a few hours at a time to see what the effect is.

5

No luck with these settings. I think they only apply when you are discharging power to the grid? There was no change to where the solar was going.

Only thing that stopped my house using solar was turning Eco Mode off. Which then forced me to pull from grid, frustrating.