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JaccoR / hass-entso-e

Integration for Home Assistant to fetch day ahead energy prices from European countries via ENTSO-e Transparency Platform
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Different price for input vs output #151

Open thoutenbos opened 2 months ago

thoutenbos commented 2 months ago

Some energy providers in the NL are now applying their own costs separately to delivered and again on returned energy. Currently this is already the case for Frank Energy, EasyEnergie and NextEnergy.

Delivery: current_price + (current_price|abs) s.VAT + (s.energie_belasting + s.NextEnergy) (1+s.VAT) )

Return: current_price + (current_price|abs) s.VAT + (s.energie_belasting - s.NextEnergy) (1+s.VAT) )

Is there a way to implement this new pricing model? It would require two different attributes as we would not know beforehand if we will be using or delivering energy for a given hour.

RobKuipers commented 2 months ago

In reply to the last sentence above: FYI it's not exclusive. We often both use and provide during an hour.

thoutenbos commented 2 months ago

I thought the in+out is netted for every hour as part of "salderen" before the costs factor is applied. Is that not correct?

RobKuipers commented 2 months ago

I'm afraid not. Provider (in your case NextEnergy) costs are applied for all currents flowing in- and out of your house. 'Salderen' is something different: (some) taxes are applied only to your nett yearly usage.

thoutenbos commented 2 months ago

Very specific help page for NE, but afaik this is true for all the dynamic suppliers in NL

Voor ieder uur salderen we hierbij jouw verbruik met jouw opwek. Indien je meer hebt verbruikt dan opgewekt, betaal je voor de overblijvende volumes de corresponderende uurprijs. Indien je meer hebt opgewekt dan verbruikt, dan krijg je de uurprijs vergoed voor de overblijvende volumes. Je betaalt alleen belasting over jouw netto verbruik per jaar.

https://www.nextenergy.nl/veelgestelde-vragen/ik-heb-zonnepanelen-en-maak-gebruik-van-salderingsregels-kan-dat-ook-bij-nextenergy

RobKuipers commented 2 months ago

I stand corrected!