On-grid domestic battery storage 5 December 2016 at 4:57PM edited 30 November -1 at 1:00AM in Green & Ethical MoneySaving 2.2K replies 208.9K views

EVandPV

Your right about a script, Octolux. https://github.com/celsworth/octolux
It'll do the same thing as the Lux Power Pod and charge your batteries from the grid at the cheapest Octopus Agile times.
If it looks like your Lux is grid charging, go onto the web portal (http://server.luxpowertek.com/WManage/web/monitor/inverter) and turn off grid charging on the 'maintain' tab. You can also do it on the app which your installer should have set up for you.

Starfrog

Is it normal for the pv to show power still going to the house  ? I have it set as off but still charges it when it’s below 10% I think. ? How exactly do I use the script ? I have so many questions but thank you for info 

Starfrog

This is the PV showing output ! Right now in the dark !! 

EVandPV

Starfrog said:

Is it normal for the pv to show power still going to the house  ? I have it set as off but still charges it when it’s below 10% I think. ? How exactly do I use the script ? I have so many questions but thank you for info 

Under the default configuration, your pv will supply your house with whatever power it needs first then any excess will charge your batteries. Once your batteries are full, any excess goes out to the grid.
Your batteries shouldn't be charging below 10%. If they are,  check the discharge settings on the portal under 'maintain' and make sure the 'cut off SOC' is set to at least 10%. 
You run the script from a Rasberry Pi using a cron schedule every 30 minutes. The instructions are all in the github.

EVandPV

If you post a screenshot of your settings, we can take a look a see if anything's not right.

EVandPV

Starfrog said:

This is the PV showing output ! Right now in the dark !! 

That's definitely not right !
I'm wondering if the installer has put a ct clamp in the wrong place. I'd get him back, asap.

Solarchaser

Yeah I'd agree with Scott, CT clamp looks to be in the wrong place

Starfrog

Where should it be ? You can see the draw from the grid is minus the amount that the PV is showing it’s producing which ultimately will put all my figures and data wrong even if it is a few hundred watt over time. I’ll post the maintenance screen later 

Solarchaser

It should be on the positive lead of the incoming power from the solar inverter.

CT clamps are not 100% accurate anyway.
A good rule of thumb is to assume they are 10% out.

Starfrog

in you dig it says 17kw of storage ? Battery ?