Emporia Energy Community › Support Center › Hardware and Installation › Ev Chargers with load management read power from 480VAC 3phase 3wire Delta panel
- This topic has 6 replies, 2 voices, and was last updated 10 months ago by emporiacs.
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maglitoMember
Hi, I love your products and non subscription based business model. Your EV load management solution is so close to what I need, but my power source is 480VAC 3 phase 3 wire delta (pre transformer). For this project I’ll be buying 15-30 EV chargers initially and upto 90 in phase 1.
I have no problem using an external meter with modbus and pulse output like this:
https://www.eastroneurope.com/products/view/smart-x96-5#
Is there any kind of gateway I can use to get this back to your servers so we can load balance from that input?
Thanks!
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maglitoMember
BTW, I made a similar post on reddit seeking a solution and with more details on my use case. If we can find a solution, I’ll update that post as well.
https://www.reddit.com/r/ocpp/comments/18ij0w7/has_any_heard_of_versinetic_linkray_passive/
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maglitoMember
Perhaps this 3 phase power meter that seems to support 480V L-L and outputs to zigbee could be used?
https://www.aliexpress.us/item/3256805589951303.html?gatewayAdapt=glo2usa4itemAdapt
To communicate with the vue utility connect to enable dynamic load balance?
https://www.emporiaenergy.com/how-the-vue-utility-connect-works
Please let me know.
Anthony
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maglitoMember
Also! Our charger ONLY supports 208 / 240VAC @ 50 / 60Hz.
Right, if I wasn’t clear: the plan is to install a large transformer between the 480VAC 3 phase delta panel and the 240VAC 3 phase subpanel where the chargers would connect.
Details here: https://drive.google.com/file/d/1VLjnDZLxE1yLJCqiHKGUdVRJwA3Pja2-/view
Contacting support basically said monitoring 480V 3 phase panels may be considered someday.
In my opinion, your devices either need a way to accept RS485 Modbus input or your datacenter could accept Modbus TCP messages from smart meters over the internet, the aforementioned Eastron meter supports this: https://www.eastrongroup.com/product/panel-board/ethernet-modbus-tcp-three-phase-panel-mounted-panel-meter-for-panel-board.html
The source IP will be unique to each customer, and you could support Dynu or ClouDNS for customer IP lookup for those customer unable to secure a static public IPv4 address. This would be the easiest way to add support for monitoring higher voltage 3 phase panels that are popular in the MDU space.
Condominiums / apartment buildings / MDUs are the big unmet need in the EV charging space. Please consider supporting this use case, as the unmet need/market potential is very large. I am happy to work with you to develop such a solution as I currently have one of these Eastron X96 meters on my network and can send Modbus TCP packets your way now.
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emporiacsEmporia Staff
Thank you for the detailed feedback here. We’ve passed this feedback along to team.
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