Tesla Powerwalls can be manipulated via Home Assistant using the 'Tesla Custom' integration available via HACS - All you need to do is turn the 'Back-Up Up Reserve' setting too 100% and the Powerwall will stop providing energy and allow you to use cheap rate grid energy instead. The bonus is that the Powerwall will charge itself to 100% using the cheaper grid energy.
My system is fully automated using Home assistant but I needed to get an electrician to install a Shelly device to monitor my car charger's power cable via a CT clamp at the fusebox. What I have is: LuxPower inverter with solar panels, LFP Pylontech home batteries and an Ohme car charger. I am on Intelligent Octopus go. What I automate is: 1. If time is just before 11:30pm, Home Assistant checks energy left in the batteries and works out what charge required to charge the batteries at the lowest power rate so that they will be fully charged by 5:30am 2. If my car starts charging at any time of the day (Worked out be checking the Shelly), Home Assistant tells my batteries to stop discharging. 3. If my car stops charging Home Assistant tells my batteries to start discharging again (outside of 11:30-05:30 of course) I also do other automations via Home Assistant: 1. My batteries are in the loft and so if it gets hot (over 26 degrees, Home Assistant tells some fans to cool them down. They switch off when the temp goes below 24 degrees. I also get a message on my phone. 2. My system tells me via my phone and by my Sonos speakers when my washing machine/tumble dryer/Air Fryer are ready. 3. My freezer and tumble dryer are in my garage (not connected to house) so Home Assistant would inform me if my garage lost power or if I left my freezer door open. I should also mention that Home assistant is fantastic at monitoring and keeping records of all power created or used by my house (Electricity and gas). It's not just for automations. But I should also mention that it has been a labour of love setting this all up.
@buncho64 Really interested in your set up as it seems very similar to ours. I note your comment about it being a faff to set it all up but quite like a challenge! Do you have any tips you can offer or sources that gave you any good steers please?
I have a MyEnergy Zappi charger, but I use the Octopus integration in HA to switch my Powerwall as appropriate when I have low cost electricity on the Octopus Intelligent Go tariffs.
We are on Intelligent Go which works fine in the winter, however when we ere on Go, in the summer we didn’t normally buy any mains electricity. Now we are in the silly position we have to do a small smart charge once a month to stay on the tariff. We are on the old FITS payments so get paid more than enough from them to pay all our energy bills. We just want to use less grid energy but are forced to buy some in albeit at 7.5p from April to October. because of the IO terms and conditions. It’s a small inconvenience but frustrating in its own way.
This would be really useful for me, my wife has a PHEV so it often needs charging during the day. Intelligent Go is great for this, but I have to keep an eye on it so I can manually set my home battery to charge when the car is charging - the exact issue this video addresses. It would appear I need to get Home Assistant, which is a bit scary. If there is an app to control Solis inverters then it would definitely be worth having a go
HA isn’t too scary… If you already have a computer running as a file server or similar then you can run it on that, else an old laptop makes a good option.
I use Octopus Intelligent Go with a Octopus Mini, I have a Zappi, A Pylontech battery and Solis Hybrid Inverter for Solar PV. I wanted to do what your video said, “EV Charger talk to home storage battery” I purchased a Home Assistant Green to get things going. However, when you said there are many tutorial videos, you were right, there are many and it is overwhelming. Since you got yours to work, it is possible for you to list which tutorial videos you used and which apps you used from HACS. I just want the home battery to charge automatically when the car is charging and not discharge itself. thanks
I don’t have same charger and battery you do but you need to download apps for both myenergi api shows if it’s charging but I believe they also push to octopus api
@@Kimchi_The_Corgi download octopus one from hacs, then download plyontech once there both setup watch a video or ask questions in forums about settings and automations
So I have same as you. Octopus Inteligent Go, Ohme charger and Alpha batteries. So if i follow what you have done it should replicate. You mentioned setting other routines incase they fight with one another, could you give an example so I can follow step by step. In winter this will be vital. My NUC is on the way and will be running home assistant shortly :)
Nic I have Tesla PW2, Zappi charger and 12kw solar system with solar edge. My EV (Mercedes) seems to charge without draining the battery unless I tell Zappi to do it. Am I missing something? Do I need the home assistant software you talk about? Sorry a lot of mix of tech and I have no idea how it works.
Hi Nick, talking about all things battery, i told you my Zoe heater was not working, apparently the car brain did not know the heat-pump was there, all sorted now. the only issue i had with Intelligence Go was i have to suspend there service when charging solar PV to zoe, as i only require 80% charge at any time, and when i set the Kwh to stop charge the dame thing changed to Eco++ from octopus.
@@NicolasRaimo I'm on a legacy tariff getting 6.79p per deemed export at 1/2 the fit tariff eg 12mts tariff 10,000 kwh @22p £2,200 + 5,000 @ 6.79 £339 so using my solar makes no difference apart from free energy
Very interesting and timely as I'm looking to move to Intelligent Go soon and if the following doesn't work out (read below) I'll give it a try. However, using the philosophy of KISS, what do you think about this? Intelligent charges between 1130-0530. So if i set the inverter to charge at those times then when i plug my car in, the battery wont be discharging to the car. Also since I generally only charge once or twice a week i can check if Octopus have allocated any extra charging sessions. And if they havent then no need to do anything. And even if they have, it would be once in a blue moon when the cars charging limit of 80% wont be reached anyway before the charging session ends, because at 10% an hour (thats the exact rate my car charges at), Id need to start charging at below 20%. In that rare case, car very low, extra charge session middle of the day, the car wont be plugged in anyway. If its at say 630 am, I'll be up by then and can unplug. AFAIK octopus only require you to plug in something like once a month?
Intelligent can charge at anytime during the day, it’s also terms they should be able to smart charge you and they reserve the right to take you off the deal if you stop this, what I’ve said also increases savings
@@NicolasRaimo that doesn't get over the fact you can't charge a car beyond 100% (and many limit it to 80% for everyday use) so how can they smart charge you if your car is already full from 6 hours charging? That's 60% on my car. On smaller battery cars it's 70 or more. So it's not an option they can actually practically force. ETA even people who aren't trying to game the system will have the exact same situation.
Exactly what I do, my powerwall charges 11:30 to 5:30 the same time as the car charges most often, I very rarely get a time outside the standard 6 hours as I charge frequently enough to not need a huge charge time and I set the ready by time on car charging to 5:30am so both the car and battery are full.
@@NicolasRaimo Id just check before plugging in I'm already checking there wont be a next morning extra period anyway.). End of the day, since my house battery will be full by 230am and will take me through 24 hours and Id routinely run appliances after 2330, an extra cheap period would net me nothing. I'm not sure it would net most people anything.The more i think about it, if you have a battery, any extra cheap periods are of little to no benefit to the consumer. They are likely of benefit to Octopus as an energy sink, but theres no that much flexibilty with what they can use electricity for and in effect a cheap period at (say) 1930-230 is just shifting use away from the next few hours.
6.9p and fixed hours and high standing charge you could beat that with extra hours easy with load shifting and export on eon isn’t as good as octopus 15p which you need to be an octopus 🐙 customer to get
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Tesla Powerwalls can be manipulated via Home Assistant using the 'Tesla Custom' integration available via HACS - All you need to do is turn the 'Back-Up Up Reserve' setting too 100% and the Powerwall will stop providing energy and allow you to use cheap rate grid energy instead. The bonus is that the Powerwall will charge itself to 100% using the cheaper grid energy.
My system is fully automated using Home assistant but I needed to get an electrician to install a Shelly device to monitor my car charger's power cable via a CT clamp at the fusebox.
What I have is: LuxPower inverter with solar panels, LFP Pylontech home batteries and an Ohme car charger. I am on Intelligent Octopus go.
What I automate is:
1. If time is just before 11:30pm, Home Assistant checks energy left in the batteries and works out what charge required to charge the batteries at the lowest power rate so that they will be fully charged by 5:30am
2. If my car starts charging at any time of the day (Worked out be checking the Shelly), Home Assistant tells my batteries to stop discharging.
3. If my car stops charging Home Assistant tells my batteries to start discharging again (outside of 11:30-05:30 of course)
I also do other automations via Home Assistant:
1. My batteries are in the loft and so if it gets hot (over 26 degrees, Home Assistant tells some fans to cool them down. They switch off when the temp goes below 24 degrees. I also get a message on my phone.
2. My system tells me via my phone and by my Sonos speakers when my washing machine/tumble dryer/Air Fryer are ready.
3. My freezer and tumble dryer are in my garage (not connected to house) so Home Assistant would inform me if my garage lost power or if I left my freezer door open.
I should also mention that Home assistant is fantastic at monitoring and keeping records of all power created or used by my house (Electricity and gas). It's not just for automations.
But I should also mention that it has been a labour of love setting this all up.
@buncho64 Really interested in your set up as it seems very similar to ours. I note your comment about it being a faff to set it all up but quite like a challenge! Do you have any tips you can offer or sources that gave you any good steers please?
@@LiveActionFX May I ask what car charger you use.
I have a MyEnergy Zappi charger, but I use the Octopus integration in HA to switch my Powerwall as appropriate when I have low cost electricity on the Octopus Intelligent Go tariffs.
We are on Intelligent Go which works fine in the winter, however when we ere on Go, in the summer we didn’t normally buy any mains electricity. Now we are in the silly position we have to do a small smart charge once a month to stay on the tariff. We are on the old FITS payments so get paid more than enough from them to pay all our energy bills. We just want to use less grid energy but are forced to buy some in albeit at 7.5p from April to October. because of the IO terms and conditions. It’s a small inconvenience but frustrating in its own way.
I didn’t realise you lose the tariff - I always charge overnight at cheap rate. Thanks for posting.
This would be really useful for me, my wife has a PHEV so it often needs charging during the day. Intelligent Go is great for this, but I have to keep an eye on it so I can manually set my home battery to charge when the car is charging - the exact issue this video addresses. It would appear I need to get Home Assistant, which is a bit scary. If there is an app to control Solis inverters then it would definitely be worth having a go
HA isn’t too scary…
If you already have a computer running as a file server or similar then you can run it on that, else an old laptop makes a good option.
@@JohnR31415 I don't have a file server, but I do have an old laptop. I will investigate further
I use Octopus Intelligent Go with a Octopus Mini, I have a Zappi, A Pylontech battery and Solis Hybrid Inverter for Solar PV.
I wanted to do what your video said, “EV Charger talk to home storage battery”
I purchased a Home Assistant Green to get things going.
However, when you said there are many tutorial videos, you were right, there are many and it is overwhelming.
Since you got yours to work, it is possible for you to list which tutorial videos you used and which apps you used from HACS.
I just want the home battery to charge automatically when the car is charging and not discharge itself.
thanks
I don’t have same charger and battery you do but you need to download apps for both myenergi api shows if it’s charging but I believe they also push to octopus api
any suggestions on which tutorial to watch?
@@Kimchi_The_Corgi download octopus one from hacs, then download plyontech once there both setup watch a video or ask questions in forums about settings and automations
@@NicolasRaimo thanks
So I have same as you. Octopus Inteligent Go, Ohme charger and Alpha batteries. So if i follow what you have done it should replicate.
You mentioned setting other routines incase they fight with one another, could you give an example so I can follow step by step. In winter this will be vital. My NUC is on the way and will be running home assistant shortly :)
Nic I have Tesla PW2, Zappi charger and 12kw solar system with solar edge.
My EV (Mercedes) seems to charge without draining the battery unless I tell Zappi to do it.
Am I missing something? Do I need the home assistant software you talk about? Sorry a lot of mix of tech and I have no idea how it works.
I have tried to get a Sonnen battery to integrate in Home Assistant without success. Any tips anyone?
Hi Nick, talking about all things battery, i told you my Zoe heater was not working, apparently the car brain did not know the heat-pump was there, all sorted now.
the only issue i had with Intelligence Go was i have to suspend there service when charging solar PV to zoe, as i only require 80% charge at any time, and when i set the Kwh to stop charge the dame thing changed to Eco++ from octopus.
Why would you use your solar on intelligent go export means your 7.5p better off to export
@@NicolasRaimo I'm on a legacy tariff getting 6.79p per deemed export at 1/2 the fit tariff eg 12mts tariff 10,000 kwh @22p £2,200 + 5,000 @ 6.79 £339 so using my solar makes no difference apart from free energy
Very interesting and timely as I'm looking to move to Intelligent Go soon and if the following doesn't work out (read below) I'll give it a try.
However, using the philosophy of KISS, what do you think about this?
Intelligent charges between 1130-0530. So if i set the inverter to charge at those times then when i plug my car in, the battery wont be discharging to the car.
Also since I generally only charge once or twice a week i can check if Octopus have allocated any extra charging sessions. And if they havent then no need to do anything. And even if they have, it would be once in a blue moon when the cars charging limit of 80% wont be reached anyway before the charging session ends, because at 10% an hour (thats the exact rate my car charges at), Id need to start charging at below 20%. In that rare case, car very low, extra charge session middle of the day, the car wont be plugged in anyway. If its at say 630 am, I'll be up by then and can unplug. AFAIK octopus only require you to plug in something like once a month?
Intelligent can charge at anytime during the day, it’s also terms they should be able to smart charge you and they reserve the right to take you off the deal if you stop this, what I’ve said also increases savings
@@NicolasRaimo that doesn't get over the fact you can't charge a car beyond 100% (and many limit it to 80% for everyday use) so how can they smart charge you if your car is already full from 6 hours charging? That's 60% on my car. On smaller battery cars it's 70 or more. So it's not an option they can actually practically force.
ETA even people who aren't trying to game the system will have the exact same situation.
@@Joe-lb8qn If you plugged in at say 6pm and there’s bonus slots at 7-8-9pm then non would be during normal hours
Exactly what I do, my powerwall charges 11:30 to 5:30 the same time as the car charges most often, I very rarely get a time outside the standard 6 hours as I charge frequently enough to not need a huge charge time and I set the ready by time on car charging to 5:30am so both the car and battery are full.
@@NicolasRaimo Id just check before plugging in I'm already checking there wont be a next morning extra period anyway.). End of the day, since my house battery will be full by 230am and will take me through 24 hours and Id routinely run appliances after 2330, an extra cheap period would net me nothing. I'm not sure it would net most people anything.The more i think about it, if you have a battery, any extra cheap periods are of little to no benefit to the consumer. They are likely of benefit to Octopus as an energy sink, but theres no that much flexibilty with what they can use electricity for and in effect a cheap period at (say) 1930-230 is just shifting use away from the next few hours.
Eon Next is perhaps even cheaper than IOG :)
6.9p and fixed hours and high standing charge you could beat that with extra hours easy with load shifting and export on eon isn’t as good as octopus 15p which you need to be an octopus 🐙 customer to get