Hi, want to know how to invert the date of a sensor.
I have a solaredge with meter and if i make more energy the data is positive and if i use data it's negative.
I want to change the positive to negative and negative to positive.
Because i have a dynamic contract for energy and now it's calculating wrong
#Inverting sensor data
valid moon
valid moon
Looked at this solution and it works.
There is only one thing: i want to leave it in one sensor, just put negative to positive and positive to negative
The AC power now needs to be nagatve as it's returning power to grid
valid moon
its not for the energy dashboard but to calculate for my dynamic power contract.
now it's not showing the correct prices
the energy dashboard is fine, i use dsmr for it.
but the ac power gives a better insight how much i usewith a single sensor
and to make a better calculation of the costs
brisk stump
energy dashboard calculates prices too
valid moon
ok will try it. thx
valid moon
Btw: mij solar gives a better reading (every 1 second) than mij DSMR (every 10 seconds)
So i think when the solar AC POWER is inverted it's giving a better insight
brisk stump
DSMR just measures grid export and import
your solar meter measures solar production
you need to know both
sonic cape
I'm a bit interested in the same topic. My hour based graph shows that I'm selling solar energy to grid, which actually is true, but the net cost over the hour will be calculated, and in reality I'm not getting paid anything from that hour.
The values I use are the imported and expored energy in kWh. They are always positive values, but the current power, like you had, goes negative when I'm selling more than importing.
I think there is no simple way to handle this in HA automatically without some extensive calculations?
I will be more interested in this topic now when there will be this 15min stock price system coming
brisk stump
I'm a bit interested in the same topic. My hour based graph shows that I'm selli...
if you're not getting paid to sell solar energy to the grid then just set the grid return price to 0
sonic cape
I get, but only from the part which exceeds the imported amount. So calculation is basically correct, where it shows the imported and exported amounts, but the graph on the top is a bit misleading as it should show only yellow and blue colors here, until I'm overproducing the solar
sonic cape
yes. For now, until we move to 15 minute "netting"
brisk stump
so if in one hour you consume 10 kWh, but you export 9 kWh, you get paid nothing?
sonic cape
No, I need to pay for that 1 kWh myself. But if the values are other way around, then I get paid for that 1 kWh I overproduce
brisk stump
im confused
sonic cape
Sorry, I feel it a bit hard to explain 😄
10am: I import 8 kWh and export 7 kWh - net is 1 kWh which I need to pay - lets say 10 snt
11am: I import only 5 kWh and export 10 kWh - net is -5 kWh which I get paid - lets say only 20 snt because it's cheaper hour
End of that "two hour day" I get 10 snt income
I assume this would be somehow normal procedure?
brisk stump
ah okay. It's net metering at the hour levelj
sonic cape
Yes!
brisk stump
that's gonna be hard to program in because what you pay would depend on what you export that hour. But that information is unknown only until afterwards
you could use the forecast
or correct it aftwards somehow. Neither is pretty
sonic cape
Unfortunately forecast is also not that accurate.
Would be nice that there is an option within energy dashboard to handle the net metering itself. But apparently this is not so common case outside of Finland?
brisk stump
no... it's not really the intention of the energy dashboard to be used for cost administration
there are large discussion on the community forum about this because energy cost is complex and every country has a different system
sonic cape
Yeah, I would be most interested in seeing the net value in this graph, because it is a bit unclear visually to say from which hours you get paid (didn't have enough consumption for the production)
