Just had a GivEnergy system fitted solar ,battery,one week but the last two nights the charge changed it self in stead off charging as we wanted it was random 1204 to 1240 at 30%,we noticed at 6am this morning and reset the App but it didnt work or charge
I discharge my batteries everyday down to 40% from 4.30pm onwards which leaves enough to last until the sun comes up the next day...and earns a few bob in the process ✅️
Hiya. I have a 9.5kw givenergy battery. Should I be charging to 100% every night? I have read online that it's best to charge to a lower % like 90 or 95. Also should I let in discharge completely. Currently I have it set at 12% min. Some advice would be great.
100% is fine, there is an inbuilt buffer you cannot access to prevent this (so your 9.5kWh battery is actually bigger, you can always use the stated amount of 9.5kWh). 4% is the minimum it will go to so set it at the lowest level and use the lot!
GivEnergy AIO battery is designed with 100% depth of discharge in mind. So, feel free to charge to 100% and discharge to minimum (4%), every night. It's on 12 years warranty anyway.
I'd be happy to have the discharge organised by my electricity supplier and get paid more for it when demand is high. I've relatively recently set up my export with Octopus and are raking it in during the day with the solar (averaging around 25kWh export/day) but haven't done anything with the battery yet. So I've set my AIO to discharge between 16:30 and 19:30 today - but to stop at 20%. I'm not sure how much we need for the following 4 hours but it's probably not that much! Lets see what happens....
That’s the right idea, 20% from 19:00 to off peak worked for me on a “normal” day. The evening peak period is 16:00-19:00 though. Check out the Octopus Agile portal and you’ll see it really clearly.
@@SpikeBrookes87 yes, although I get paid the same I might as well do my bit for the grid! I think we use round about 500w an hour in the evening - but I don't know when my wife will be cooking, it might be later. 20% of the AIO is a bit under 3kW so should be fine.
I have an automation that looks at the time remaining until the cheap period, and if the battery can force discharge until then… then do so. Grid tends to get dirtier into the evening…
You don't say which chemistry your batteries are but assuming they are LFP then I have two observations from your post. All batteries are just a chemical reaction and this is finite no matter what type. This means the more you cycle them the quicker they will use up that chemical process and need replacing. So, 'exercising' an LFP battery when there is no real need just uses up cycle life and will require replacement sooner. Secondly, LFP batteries DO NOT like to sit at a high SOC for long periods, if you are only using 10% of capacity daily then only charge to max 70% it's the same with a car. Only charge to 100% if you need that longer range the following day, otherwise keep the SOC between 30 - 70% for maximum cycle life.
Andy should we discharge to the 4% reserve level, and I assume wait 30 minutes before recharging or is discharging to 20% ok? Also should we start the discharge at 100% or is it better to finish the recharge at 100%? Thanks
Are you sure about this with LiFePO4 batteries? Laptops, smartphones and most EV's out there have NMC batteries, which are quite different in terms of charge/discharge recommendations. I would like to see some documents showing that using up charge/discharge cycles for this "excercise" does any good according to the manufacturer.
Why are you not cycling your battery everyday? I empty my batteries back on the grid everyday, helps the grid and help payback. I believe your on the same tariff as me, but at 7p kWh and sell back at 15p kWh.
So i haqve 3 inverters 4 battery to drain all must put in my car, when empty is it ok to charge up with solar over a few days or does it need to be done stright away ??
So how do I get my 2 x 9.5kWh batteries to charge and discharge correctly in the first place @ElectricVehicleMan @GivEnergy ? Being told it's a Firmware issue like that somehow excludes the fact they wont charge and discharge correctly!
@@givenergy I tried that of course in the first instance. ;) Customer Service just kept stating "firmware issue" as if this somehow meant I was to accept the fact that they did not work correctly. As a last resort to see how the fault followed the batteries our installer decided to swap the Primary and Secondary. Amazingly they then started working correctly. So we can confirm no "firmware issue", likely a commisioning issue by Givenergy!
I discharge every evening, leaving just enough to power the house until the cheap tariff kicks in at 11.30pm. That adds to the 15p/kWh that I sell my solar for during the day. All taken care of through a Home Assistant automation 😁
@@paulhelen9506 Yes, I charge to 100% every night and discharge to 30% from 6pm. Most evenings, the battery runs down to 4% by 11.30pm, ready ti start changing again.
Excellent tutorial.
Is there an easy way to see the SOH of the battery packs like you can on say LeafSpy with a Nissan Leaf?
Just had a GivEnergy system fitted solar ,battery,one week but the last two nights the charge changed it self in stead off charging as we wanted it was random 1204 to 1240 at 30%,we noticed at 6am this morning and reset the App but it didnt work or charge
I discharge my batteries everyday down to 40% from 4.30pm onwards which leaves enough to last until the sun comes up the next day...and earns a few bob in the process ✅️
Still waiting for positive news about the GivEnergy EV Charger & Octopus playing nice...
That’s up to OctopusEnergy I’m afraid.
@@ElectricVehicleMan I read that Octopus are waiting for GivEnergy... Oh well, hopefully it will happen eventually.
This is Phil Steele from Octopus:
x.com/agile_phil/status/1806028475083477013?s=46&t=o_NQRH5kv6Nms5FUG4U5Hg
@@givenergy thank you
Hiya. I have a 9.5kw givenergy battery. Should I be charging to 100% every night? I have read online that it's best to charge to a lower % like 90 or 95. Also should I let in discharge completely. Currently I have it set at 12% min. Some advice would be great.
100% is fine, there is an inbuilt buffer you cannot access to prevent this (so your 9.5kWh battery is actually bigger, you can always use the stated amount of 9.5kWh).
4% is the minimum it will go to so set it at the lowest level and use the lot!
GivEnergy AIO battery is designed with 100% depth of discharge in mind. So, feel free to charge to 100% and discharge to minimum (4%), every night. It's on 12 years warranty anyway.
I'd be happy to have the discharge organised by my electricity supplier and get paid more for it when demand is high. I've relatively recently set up my export with Octopus and are raking it in during the day with the solar (averaging around 25kWh export/day) but haven't done anything with the battery yet.
So I've set my AIO to discharge between 16:30 and 19:30 today - but to stop at 20%. I'm not sure how much we need for the following 4 hours but it's probably not that much!
Lets see what happens....
That’s the right idea, 20% from 19:00 to off peak worked for me on a “normal” day. The evening peak period is 16:00-19:00 though. Check out the Octopus Agile portal and you’ll see it really clearly.
@@SpikeBrookes87 yes, although I get paid the same I might as well do my bit for the grid! I think we use round about 500w an hour in the evening - but I don't know when my wife will be cooking, it might be later. 20% of the AIO is a bit under 3kW so should be fine.
I have an automation that looks at the time remaining until the cheap period, and if the battery can force discharge until then… then do so.
Grid tends to get dirtier into the evening…
@@JohnR31415 how do I set up an automation to do that?
@@FFVoyager I use home assistant. But you just need to be able to read the data from the local interface and do some basic arithmetic on the result.
Thank you Andy. Very helpful video. Best regards Martin
You don't say which chemistry your batteries are but assuming they are LFP then I have two observations from your post. All batteries are just a chemical reaction and this is finite no matter what type. This means the more you cycle them the quicker they will use up that chemical process and need replacing. So, 'exercising' an LFP battery when there is no real need just uses up cycle life and will require replacement sooner. Secondly, LFP batteries DO NOT like to sit at a high SOC for long periods, if you are only using 10% of capacity daily then only charge to max 70% it's the same with a car. Only charge to 100% if you need that longer range the following day, otherwise keep the SOC between 30 - 70% for maximum cycle life.
Andy should we discharge to the 4% reserve level, and I assume wait 30 minutes before recharging or is discharging to 20% ok? Also should we start the discharge at 100% or is it better to finish the recharge at 100%? Thanks
Are you sure about this with LiFePO4 batteries? Laptops, smartphones and most EV's out there have NMC batteries, which are quite different in terms of charge/discharge recommendations. I would like to see some documents showing that using up charge/discharge cycles for this "excercise" does any good according to the manufacturer.
Why are you not cycling your battery everyday? I empty my batteries back on the grid everyday, helps the grid and help payback. I believe your on the same tariff as me, but at 7p kWh and sell back at 15p kWh.
So i haqve 3 inverters 4 battery to drain all must put in my car, when empty is it ok to charge up with solar over a few days or does it need to be done stright away ??
Over time is fine.
So how do I get my 2 x 9.5kWh batteries to charge and discharge correctly in the first place
@ElectricVehicleMan @GivEnergy ? Being told it's a Firmware issue like that somehow excludes the fact they wont charge and discharge correctly!
Contact support and they'll be able to sort it!
Thanks
@@givenergy I tried that of course in the first instance. ;) Customer Service just kept stating "firmware issue" as if this somehow meant I was to accept the fact that they did not work correctly. As a last resort to see how the fault followed the batteries our installer decided to swap the Primary and Secondary. Amazingly they then started working correctly. So we can confirm no "firmware issue", likely a commisioning issue by Givenergy!
I discharge every evening, leaving just enough to power the house until the cheap tariff kicks in at 11.30pm. That adds to the 15p/kWh that I sell my solar for during the day. All taken care of through a Home Assistant automation 😁
@@davete1do u charge to 100%
@@paulhelen9506 Yes, I charge to 100% every night and discharge to 30% from 6pm. Most evenings, the battery runs down to 4% by 11.30pm, ready ti start changing again.