The "usual" reason for an inverter to show power at night is current draw
. Since the Current Clamp can't tell direction it is being interpreted as generation. Coupled with power
How to fix it?
- I assume you know that on PVoutput.org you can write a Ruleto set the value to 0?
- For my.currentcost.com the only option is editing the data after it is loaded to cosm.com using cosm's API. This can be done, but in your case I see little benefit for the effort involved.
As explained by 'seeker' this '0' value is a pain tho' its usually quite a small value cf the total solar or house power for the day - depends on the type of inverter used. What's really needed is a way for your software to zero it - I do this in my s/w, live_sol, by a statement like
if solar < threshold then solar =0
& you can then set threshold to be say 60w or whatever is best for your inverter. I'm surprised than not all s/w has this capability but maybe eventually they'll implement it if we keep mentioning it! John