Smart grid charging with minimal writes to register Question to let the export stop and to prioritise export.

[pwnypower]

First of all great integration!

hey all i have a S5-EH1P and am getting grid hourly pricing. With this is sometimes costs money to put energy on the grid. I did see that we have the possiibility to stop exporting to grid but i can't seem to get this working correctly. What i would like to achieve is the following:

A summer and winter mode(manually or automatically chosen based on pricing changes)

summer mode, fills the battery with solar-> Battery works as a buffer when price is positive(so import is costing money)
When price gets negative (so you are paid to use energy) -> turn off battery consumption(so everything is coming from grid), fill battery, run load from grid and disable export.

winter mode
Checks pricing(done via automation hourly) set Reserve SOC to 80 and turns on reserve battery mode(so battery is forced to charge to the reserve soc) when price is low, also disables battery use(as price is lowest so peakshaving not needed) and then when price is high it peakshaves/takes over the load via battery again.

One issue that i have is that my backup SOC can't be changed, when i update it higher it falls back to 80%

[Pho3niX90]

If you haven't found a solution as yet, have a look at Max Charge SOC, I wouldn't think that battery reserve can be higher than this value.

[pwnypower]

Hey Phoenix, thanks for the reply! i have created a automation around it that limits EEPROM writes, checks dynamic pricing and also steers the inverter based on feed-in priority, reserve battery mode etc.

[0rangutan]

That sounds great - might be worth you also looking at this (non-HA) project which does a great job of automating Solis for agile electricity pricing:
https://github.com/Webreaper/SolisAgileManager

[pwnypower]

That sounds great - might be worth you also looking at this (non-HA) project which does a great job of automating Solis for agile electricity pricing: https://github.com/Webreaper/SolisAgileManager

nice, looks promising, only thing is that it uses the soliscloud by the looks of it. My approach is locally hosted, outages can be quite regular around my place.

[0rangutan]

Yes - I was thinking that the algorithm used may be of interest to help with your local version.

[eqasxar]

SolisAgileManager is a very good idea, but I agree that the cloud-based version may cause problems, and we also always strive for autonomy. Additionally, I couldn't find a way there to change the energy market to Nord Pool.