Vanilla are planning an update to the site on April 24th (next Wednesday). It is a major PHP8 update which is expected to boost performance across the site. The site will be down from 7pm and it is expected to take about an hour to complete. We appreciate your patience during the update.
Thanks all.
Constant grid power consumption
-
22-03-2022 10:34am#1
Just wondering if anyone else has had this issue or ideas of how to resolve it. I continuously get small power drawn from grid even though battery has plenty of power and plenty excess solar during the day. You can see it for example in today's usage again. Just ignore the 2-4am as I don't draw from battery then as very cheap rate and only have a 5kw battery.
Have checked meter clamp connections etc. Connected to a Solis 6kw 5G hybrid inverter. Anyone else with this issue?
0
Comments
-
-
-
-
-
-
Advertisement
-
-
-
-
-
-
Advertisement
-
Scenario one rarely as even last two weeks production has been crazy high and still having slight draw from grid.
Scenario two I don't have issue with as have export margin setup on Eddi as had seen this issue way back for few days and never since setting export margin up.
Problem I have is all the time and more noticeable at night where battery has sufficient charge but draws from grid continuously.
Take last night for example as easier to see with low usage in graph. You can ignore the 2-5am where I just use cheap ev grid so no charge or discharge. My battery today ran out for few minutes around 8am as fog so low generation. If you look at the rest of the night and morning you will see the continuous grid consumption when running off batteries on my base load
0 -
I'd set the Eddi Export Margin to 50W and the Response Delay to 2s a couple of weeks back, when originally started looking at this (but haven't done much looking since). Its still like that now. (and don't have a Zappi)
Looking at yesterday and today, see the MyEnergi stats, and then below see the bord gais meter readings for some of the same period
Chris, is yours similar levels?
I'm not sure its Eddi related as its all night, while Eddi is "waiting", and the margin is set. But, to be fully sure I'll disconnect the Harvi CT clamp and turn off the Eddi MCB from 6pm this evening, and see the meter readings tomorrow morning...
0 -
-
-
-
-
-
-
Backup power isn't something I'd been looking at previously, so just stated monitoring 1.5 hours ago (assuming Bypass Load Power is Backup). Can see it does fluctuate in, even though nothing connected to inverter port. 5 second interval monitoring.
(BTW, thanks reklamos and Jonathan for all in the Automation thread that enabled this monitoring)
Anyone know how to disable the backup output in newer Solis Inverter SW?
Online Manuals for older versions have a high level menu in Advanced Settings, but now its not obvious...
0 -
-
Advertisement
-
It is under Storage energy set/control parameters. Set backup suply to disabled and save the settings
This thing is floating and depends on your usage at the time. The more devices you have on and the more clouds in the sky, the more work inverter has to do to flatten the usage. Also diverters add another spanner in the works as they want to do the same, but they are measuring usage on their own. Below is from my inverter. You can see that during night the variations are low but once people start waking up and sun appears the variations increase.
2 -
-
-
-
-
-
-
-
Initial results from last night not showing any difference. I normally compare from 11pm to 6am, as this time has cleaner numbers: there is no generation and house load is low/constant (except if fridge kicks in). So, this is only initial because its comparing just 2 data points: 23:00->23:30 & 23:30->00:00. It'll be tomorrow before can see 00:00->06:00
So, if continue to see the same from 00:00->06:00, it rules out the Eddi and Backup Supply (for the constant import anyway)
Thats 15wh in each 30 min slot, so a pretty constant 30w import. Same as previous days. This is still about twice what you're seeing @irishchris and @reklamos . You seem to have approx 17w and 12w respectively
It really is a shame we cant find a way of setting an offset/margin in the meter or the inverter. In summer, could set this 30w or even 50w... its producing so much these days, it makes sense to lose a little rather than unnecessarily importing....
Next thing I'm considering is the cat5 extension from CT clamp to meter. Its using a pair into each terminal, so it's not taking any noise reduction advantages of having twisted pairs. So perhaps if a single pair is used it would be less susceptible to interference. While I don't see any recommendation on this for the meter setup, other uses of CT clamp do have recommendations, e.g. this from a zappi manual:
1 -
Advertisement
-
