The prices you see in PiggyBank is not the spot price, but the TOTAL cost you have. The prices are calculated as follows:
total_price = spotprice * (1 + MVA) + grid_tax + surcharge
where these variables can be set by you in the app, default are:
MVA = 25%
grid_tax = 0.3626 for day, 0.2839 for night
surcharge = 0.0198
At the time you reported 13:00 - 14:00 the spot price in NO3 was 0.24578, with VAT that is 0.307225, including surcharge (for my vendor) that is 0.327025
Thus, so far I assume that when you say the spot price was 0.33 that was including VAT and surcharge.
However, this does not include the grid tax, which will add additional 0.3626 to the price. = 0.6926 in your case. This is also what I see in my app (I also have NO3)
If you are seeing 0.96 (or did you misspell 0.69?) then you probably have incorrectly configured the numbers in the price section, please make sure that the numbers are in kr/kWh like this:
(Note: You cannot see the 3 last lines here, that will be available in next version, but the rest is the same)
