https://wiki.domoticz.com/index.php?action=history&feed=atom&title=Electric_Vehicles_charging_stations_%28wallbox%29_using_Domoticz 2026-09-19T07:11:08Z Revision history for this page on the wiki MediaWiki 1.46.0 https://wiki.domoticz.com/index.php?title=Electric_Vehicles_charging_stations_(wallbox)_using_Domoticz&diff=18282&oldid=prev 2023-09-16T13:56:10Z

<p><span class="autocomment">Creasol DomBusEVSE module to build an home-made smart wallbox: </span> Added gif animation</p> <p><b>New page</b></p><div>=Smart electric vehicle charging using Domoticz=<br /> In this section it&#039;s described how to charge an electric car using EVSE modules / wallbox compatible with Domoticz.<br /> <br /> ==Creasol DomBusEVSE module to build an home-made smart wallbox==<br /> [[File:CreDomBusEVSE adv2 960.png|alt=DomBusEVSE module to make a home-made smart wallbox to charge the electric car vehicle]]<br /> [[File:HomeHabit2 EVSE.gif|alt=Home Habit dashboard to monitor and control DomBusEVSE DIY wallbox|right|Home Habit dashboard to monitor and control DomBusEVSE DIY wallbox]]<br /> This is an advanced solution that uses the EVSE (Electric Vehicle Supply Equipment) module [https://www.creasol.it/CreasolDomBusEVSE DomBusEVSE made by Creasol], in Italy: it<br /> <br /> *detects vehicle connection and disconnection, start and stop charging<br /> *detects alarms from vehicle and failure in mains power supply<br /> *interfaces a &#039;&#039;&#039;bidirectional energy meter to know the real time import or export power from grid&#039;&#039;&#039;, and another energy meter to measure the power and energy feed to the vehicle<br /> *operates as stand-alone (no need for a domotic controller) or managed mode (charging current selected by the domotic controller) with the following charging mode: <br /> **&#039;&#039;&#039;OFF&#039;&#039;&#039;: charging disabled<br /> **&#039;&#039;&#039;SOLAR&#039;&#039;&#039;: use only energy from renewable plant (power from grid = 0)<br /> **&#039;&#039;&#039;25%&#039;&#039;&#039;: add 25% of available power from grid (for example, having a 6kW contractual power, it set the power consumption to 1500W)<br /> **&#039;&#039;&#039;50%&#039;&#039;&#039;: add 50% of power from grid<br /> **&#039;&#039;&#039;75%&#039;&#039;&#039;: max 75% of power from grid<br /> **&#039;&#039;&#039;100%&#039;&#039;&#039;: use all available power from grid (charge using solar power + max available power from the grid)<br /> **&#039;&#039;&#039;MANAGED&#039;&#039;&#039;: charging current (power) is set by domotic controller (automation script for custom charging)<br /> *operating in the a &#039;&#039;&#039;MANAGED mode&#039;&#039;&#039; it&#039;s possible to set the charging power to balance the power between two or more charging stations, using an external script/automation.<br /> <br /> It&#039;s possible to write simple automations to charge the vehicle using all available power if the battery level (SoC) is below a threshold, then use only solar power: for example, if EV battery SoC is less than 60% then set EV Mode to 100%, else set EV Mode to Solar.<br /> <br /> [https://youtu.be/m_n_A4lo9Gw Video showing electric vehicle charging by Domoticz]<br /> <br /> &lt;br /&gt;<br /> <br /> ===Prerequisites and connection diagram===<br /> <br /> #[https://www.creasol.it/CreasolDomBusEVSE Creasol DomBusEVSE module]<br /> #bidirectional energy meter, to compute the current import and export power (optional, not needed if already installed!)<br /> #type-B residual current circuit breaker<br /> #2P (single phase) or 4P (3-phases) contactor to enable/disable charging<br /> #optional, but recommended, energy meter to measure the charging power<br /> #32A EV cable with type-2 or type-1 plug on one side<br /> <br /> Click to see the [https://www.creasol.it/EVSE connection diagram] to make a smart electric car charger using DomBusEVSE module!<br /> <br /> ==Another wallbox working with Domoticz...==<br /> Name and description of another wallbox that works with Domoticz...<br /> <br /> =Warnings=<br /> Electric car is not a vacuum cleaner, that stay attached to the mains socket for 30 minutes!<br /> <br /> Keep in mind that &#039;&#039;&#039;power dissipation&#039;&#039;&#039; on connectors (and cables) is computed as &#039;&#039;&#039;P=RI²&#039;&#039;&#039; where R is the connector/wire resistance, and I² is the square of charging current.<br /> <br /> As result, &#039;&#039;&#039;when the charge current is high, the system must be checked to prevent connections and wires from overheating and burning&#039;&#039;&#039;.<br /> [[Category:EVehicles]]</div>

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