[ENHANCEMENT]: set smart grid mode depening on epex current price

[Skol6]

Hi,

I do have a floating current tarif model like f.e. Smartcontrol.
This means the price changes every hour from rather cheap to expensive.

There are alreade multiple implementations to receive and calculate the current price based on the EPEX spot market price.
It would be great if your simulation could react on those prices.

f.e. if the price is high - reduce the power of the heatpump
if the price is low - increase the power + produce hot water at this time frame.

Regards.

[edterbak]

Nice suggestion.
I will take it along. Thank you.

[Skol6]

to get the epex spot tariff there are already implementations available f.e. https://github.com/mampfes/ha_epex_spot
Currently I use the item "EPEX Spot Data Rank", where price is already in the right order.

The rest is quite simple:

• 3 cheapest hours: hot water + smartgrid more power (could also be done by manually changing flow temperature)
• 5 cheap hours: only smartgrid more power
• 8 normal hours: normal operation
• 5 high hours: smartgrid mode reduction
• 3 peak hours: smartgrid mode off - no heating

The cheapes hours are mainly in the night, so I am not sure if this is the best time to produce hot water. Midday the COP would be better.
Another method for price estimation could be to perform the calculation on the daily average price.