Hello,
I use DESS with Cerbo GX, Pylontech batteries, a MultiPlus II and solar on the roof.
I have a dynamic electricity tariff (Tibber) which is calculated hourly. The formula stored in DESS ((p+0.02+0.125)*1.19) is correct BUT on 01.01.2025 I pay variable grid charges that are time and month dependent. This is called §14a EnWG - Module 3 and is a legal regulation that could not be more German.
Unfortunately, I can only set dynamic (exchange price) or fixed price (possibly hourly fixed) in DESS.
What is needed for §14 EnWG Module 3 is dynamic exchange prices, calculated in 15 minute steps, month dependend.
For example:January - March:
00:00 - 05:30 ((p+0.02+0.063+0.020)*1.19)
05:30 - 17:30 ((p+0.02+0.063+0.062)*1.19)
17:30 - 19:30 ((p+0.02+0.063+0.124)*1.19)
19:30 - 24:00 ((p+0.02+0.063+0.062)*1.19)
April - September:
00:00 - 24:00 ((p+0.02+0.125)*1.19)
October - December:
00:00 - 05:30 ((p+0.02+0.063+0.020)*1.19)
05:30 - 17:30 ((p+0.02+0.063+0.062)*1.19)
17:30 - 19:30 ((p+0.02+0.063+0.124)*1.19)
19:30 - 24:00 ((p+0.02+0.063+0.062)*1.19)
Is there something coming from Victron or do I have to knit something myself? I’m generally happy with DESS, but from 01.01 the purchase prices for electricity would be dramatically wrong and completely unusable in their current form.
Kind regards
Jons