Yes that’s correct. However what I am talking about here is a secondary monitoring clamp that isn’t looking at the main incomer. It is looking at the submain circuit to ensure the garage submain isn’t overloaded with the battery and EV charger both charging at the same time
For an EV charger you can just clip the chargers CT on the garage supply and set the import limit to 32A, ideally uprate the supply a bit to give you a little headroom for garage loads. No vendor lock ins.
The problem is that if the EV charger doesn’t give you an additional load monitoring option then you have to either pick the garage supply or the grid supply to monitor. With the myenergi system you can monitor both and dynamically load balance using both. No other charger does that to my knowledge.
Just go SigEnergy with 6kw inverter, option of 5kw or 8kw batteries (10kw next year, maybe 12kw too) (@ 0.5C gives 8kw charge/discharge) and either use a Sigen Ev Charger or their 12kw DC to DC charger which uses a combination of Grid + Solar + Battery to charge the EV plus that DC charger is V2X
So hard limit the system and then you have load curtailment on the charger job done, but long term just change the cable customer is limiting there system design, would rather spend out long term than limit to one system and most of those new builds have cable ducts
Why would you hard limit it have you can use smart system curtailment? Trust me you wouldn’t want to change this cable. There will be extremely limited times the garage supply will be using more than 32a apart from overnight.
@ mainly thinking of whole house backup if your going to get batteries why not and mainly thinking 5kW to 6kW to give them half a chance at grid balancing and everyday life ie kettle and toaster on at the same time , but not doing the cable limits customer to never be able to have that option now or in the future, nothing is set in stone but we know some tech is round the corner V2L V2G more options will be better but needs the underpinning stuff there to accommodate
If the cable to the garage is 6mm up rate the MCB to 40A or 45A. Gives more head room
Yes that is a possibility. 👍 we would still need about 52a to run the ev charger and battery at the same time.
Import limitation, part of the G100/2, has been for a while
Yes that’s correct. However what I am talking about here is a secondary monitoring clamp that isn’t looking at the main incomer. It is looking at the submain circuit to ensure the garage submain isn’t overloaded with the battery and EV charger both charging at the same time
For an EV charger you can just clip the chargers CT on the garage supply and set the import limit to 32A, ideally uprate the supply a bit to give you a little headroom for garage loads. No vendor lock ins.
The problem is that if the EV charger doesn’t give you an additional load monitoring option then you have to either pick the garage supply or the grid supply to monitor. With the myenergi system you can monitor both and dynamically load balance using both. No other charger does that to my knowledge.
Just go SigEnergy with 6kw inverter, option of 5kw or 8kw batteries (10kw next year, maybe 12kw too) (@ 0.5C gives 8kw charge/discharge) and either use a Sigen Ev Charger or their 12kw DC to DC charger which uses a combination of Grid + Solar + Battery to charge the EV plus that DC charger is V2X
The sig stuff looks awesome!
Max current monitored through harvi connected ct is 65A. You won’t be able to set a 100A limit on your grid supply.
Yes in that scenario that is correct. However if you can hardwire both then you can still make the most of the monitor clamp 👍
So cannot comply with G100/2 Grid import limitation? eg set 80A limit, which is normal
@@PaulLandreganthere is a slight limitation when using the Harvi as the grid clamp but it is still G100/2 compliant
Myenergi isn’t WiFi between devices so in my system I can’t connect to my second Zappi in the garage
How far are the two zappi’s from eachother?
@@OvalRenewables 25-30m approx. with a building in between
@ ahh quite a long way then. Maybe we need to come and fit you a libbi inbetween to bridge the gap 😂😂😂
You can connect both via WiFi/ethernet, one is selected as master and the other gets the information from the master via cloud data
You can connect both via WiFi/ethernet, one is selected as master and the other gets the information from the master via cloud data
So hard limit the system and then you have load curtailment on the charger job done, but long term just change the cable customer is limiting there system design, would rather spend out long term than limit to one system and most of those new builds have cable ducts
Why would you hard limit it have you can use smart system curtailment? Trust me you wouldn’t want to change this cable. There will be extremely limited times the garage supply will be using more than 32a apart from overnight.
@ mainly thinking of whole house backup if your going to get batteries why not and mainly thinking 5kW to 6kW to give them half a chance at grid balancing and everyday life ie kettle and toaster on at the same time , but not doing the cable limits customer to never be able to have that option now or in the future, nothing is set in stone but we know some tech is round the corner V2L V2G more options will be better but needs the underpinning stuff there to accommodate