question

Victron have kind-of done it in the beta VRM (Dynamic ESS) all I have to do is set an alarm to sell now so complicated NodeRED not needed for what I want to do.

@matt1309 not the same but had a little tinker so I can see my whole install from one view I’ve been playing with home assistant and put the Victron inside that, no real controls but IMO a good looking UI and everything viewable,

Man i really didn't want to come back to trying nodeRed its just too advance for me. But talking to @Guy Stewart (Victron Community Manager) this seems to be the only way that i can do like a solar switch so the battery isn't charged from solar maybe via DVCC limiting and then reverts to standard charging current at a set time. So i thought i would try and do this Octopus thing. i have installed the other missing stuff that node red needed, i have no idea if it works yet but i wanted a way to say that if battery X percent ie What i want t do is setup a discharge in the session interval with a proviso that it leave 30% of the battery if it starts @ 1700 -1800 or 1730 - 1830 if it starts at 1600 - 1700 it should leave 40%. @matt1309 or Any one that knows node red that can help with the below then i can look at seeing if it can be built out further?

So ive copied this https://flows.nodered.org/flow/83a2ff80d99599599def737197829b7e#:~:text=This%20flow%20finds%20and%20automatically,ends%2C%20via%20the%20switch%20node.

Ive inputed the API key and account number are in the GraphQL section but have two errors and no idea how or where they are as the creator just says to put it into the flow GraphQL but i have errors here

• [Octopus Energy GraphQL] obtainKrakenToken (graphql)
• [Octopus Energy GraphQL] Run GraphQL (graphql)

Hi @Daza

I cant comment on the octopus node. It looks like it's a way of getting the pricing data from octopus. GraphQL. I'm not familiar with graphql. Guessing you've already installed the node for it?

I can help with the rest of the code but not so much the octopus specific bit.. If you've got a curl command example of how to get octopus data I dont mind pulling something together using http node if that's easier. ie translating the curl command into http node.

The rest of the code: I'd do something like this (this is untested code just for examples)

For really simple single input if statements i prefer to use a switch node. ie time input into switch node. Then as property set msg.payload

> setTime where setTime is the defined time criteria you have. If time > setTime the data is passed through the switch node.

For more complex criteria, like if statements based on multiple criteria ie time and SoC or even more inputs. I would use a function node. And write the javascript yourself. (I'll attach snip for below, it's not tested so will need to be debugged, but should be a decent jumping off point/give you an idea of what to tweak/how.

If need need another variable on top of the below it gets a bit more complicated (you can use global vars), but I can share an example of that if you want another input into the function as well.

I've added comments to the code to hopefully explain and I've assumed msg.payload = 1 is the message that needs to be passed out of the function to turn on octopus charging session. Alterantively if you're managing that side of things yourself you'd edit dvcc/grid set point in the block where I've set msg.payload = 1 to turn on discharing and msg.payload = 0 to stop charging.

You can combine the if's to make the code shorter but I felt the below layout made it easier to wrap your head around

var currentTime = new Date(); //gets current time 
var hours = currentTime.getHours();
var minutes = currentTime.getMinutes();


 var soc = msg.payload; // this assumes SoC is being passed into function node. 



if((hours >= 17) && (hours <= 20 && minutes <=30)){ //if time is between 5 and 6.30pm
    
    if( soc > 30){ //if state of charge is above 40%
       //code under here will be what you need to pass into the octopus node, I've assumed you just need to pass in payload = 1 but that might not be right. You'd just tweak that behaviour in this block though
        msg.payload = 1; 
        return msg; 

    
    }else if(soc <= 30) {
        //again this might need tweaked to send whatever the "off" criteria is more the ocotpus nodes. 
     msg.payload = 0;
return msg;
    
    
    
        
    }


}else if((hours >= 16) && (hours <= 17)){
    
   if( soc > 30){ //if state of charge is above 40%
       //code under here will be what you need to pass into the octopus node, I've assumed you just need to pass in payload = 1 but that might not be right. You'd just tweak that behaviour in this block though
        msg.payload = 1; 
        return msg; 

    
    }else if(soc <= 30) {
        //again this might need tweaked to send whatever the "off" criteria is more the ocotpus nodes. 
     msg.payload = 0;
return msg;
    
    
    
        
    }
    
    
}

Thanks @matt1309 but to me that looks like an alien language lol, so yeah I’ve done the graphql and put my account and api key in, I have also done the pushover account that @Craig Chamberlain mentioned which I didn’t do but for some reason no error showed up?

Yeah the node is for like a saver session node so it tracks when they want you to try and save energy. So it’s more of a discharge battery at saver session time

but I’m currently getting errors with the deployment of it I’ve messaged @Craig Chamberlain who seems to have implemented the Octopus API would like to try to expand to get it to discharge for a saver session but need to get to the bottom of why it’s not working

so these are the errors I get

Thank you both lots and I’m sorry it won’t be the last time I pester you both @Craig Chamberlain @matt1309 turns out that it’s safarI that’s causing the issues facepalm!