The thing about pulling it off completely can be tricky as it requires a lot of energy to get up to the target temperature.
Ideally, I would like to have a set point of 21 degrees C and then that at expensive it lowers a degree and vice versa at cheap.
What controls do you have available? On/off or setpoint?
It’s a zigbee thermostat so I have several ways to control it
Do you have specific times you want the floor heated?
At night, it can lower, but not too much, as I mentioned before that it may require some energy to get warm again.
I have tried to read about thermal mode but think it looks very complicated, and have a bit of a hard time seeing how to implement it in my rest command.
What’s strange is reducing my pv input values i.e. solcast * 100 instead of solact * 1000, the module seems to be able to calculate just fine. Any thoughts?
Okay so after a bit more investigation it seems becuase I had the maximium power_to_the grid to 5kw (as that is the feed in cap in Aus on single phase at the moment) it wouldn’t calculate. Clearing that gets me back to optimal.
Ive been trying every combination within the settings to find a solution to charge the AC coupled batteries utalising EMHASS, if i curtail the solar it turns the production off and doesnt allow the solar to then work and charge the batteries.
Export limiting, the calcs dont see the extra 200w sent back to the grid so this is missed. Surely there is something i can do to get the sensors to work and charge the batteries.
Auto settings doesnt always work either as the 200w stops this. I believe its were i have my cts placed but i cant change this as im using thsm for other sensors. (I know Frankenstein system)
@Johan71 , did this work for you? I still see too much differences.
I set the loss factor to 0.85.
Huawei support can’t help me, they just say: “set to 'automatic”. They are aware of this issue, but say it’s normal behaviour when setting charge/discharge values manually.
When discharging at night (no sun) it should keep the powermeter from the powersupplier at around 0W, so no power from the grid is imported. Now I see that the correct discharge power is given to the inverter, but in reality I get less discharge power, so I am now compensating with the limited power solution, but still there is too much difference between wanted discharge power and the actual discharge power.
I created 2 automations: One for daytime with battery power forcast and another one for night time (after sunset and before sunrise) with limited power solution.
Maybe you want to post you automation with the input select?
Ok but I haven’t tested that in detail (I don’t have that big battery 10kw) I assumed it worked but I can double check tonight if I have any battery left. I will post my automations and script on my github so I can link when it is updated. It is a relatively complex automation with several scripts. You can create two inputselects and see the attached images. But what’s missing is what you’re asking for some kind of float on discharge, I’ll see if I can add that tonight in my automation.
Hello
I tested a bit with my battery with maximun self consumption this morning and see that with me it is negligible as it oscillates between 0 - 20w as max 150w for a short while up and down.
A bit unsure of your settings but I run with maximize self consumption and then I set the maximum power the battery should discharge as an example 4500w
Hi,
I am also on max self consumption setting, which I set in the fusion solar app. For discharge I use now the limited power solution with a factor of 0,9 (coming from 0,85), I can check tonight what happens then, last night EHMASS calculated a charge at night at low tariff, so I could not really check the outcome. Max discharge 5000W with 15 kWh battery stack.
Are you also using Modbus TCP-IP via the Huawei SDongleA-05?
I’m keen to use EMHASS with my Amber data feed and a battery simulator in Home Assistant to get a sense of what’s possible by adding batteries to my home. I’ve installed it via the Home Assistant add on store but I’m a little stuck configuring. Does anyone have any sample configurations using Amber I can use to get started? I’ve tried going through the docs but to say that I’m a little overwhelmed would be an understatement.
The following question has been probably asked before but I haven’t been able to find relevant information despite some effort, and am hoping for some help/advise or direction to a relevant source. Apologies for inconvenience.
I am in the process of buying a home battery and extending my PV system and want to know which battery/inverter systems work best with HA and EMHASS, to allow me to easily charge and discharge on command via HA. Local control would be ideal. Integration with HA would be a very important aspect in choosing a battery. Thank you.
Basically any system that can be implemented in Home Assistant you can use. Then it can be more or less difficult. I personally have Huawei and it works well.
