Hi, Just joined this community, finding my way around.
I hope this is the right place to ask beginners questions about OpenEVSE.
I already have an EmonPi monitoring our Solar PV and grid in/out, it works really well and I love the graph displays.
We have an EV coming soon, probably April, so I’m looking to get a home EV charger. Here is my wishlist for it:
- Solar PV divert function
- Cheap rate overnight charge function (ours is cheap about midnight to 7am)
- Intelligent combining of the above two based on required KW to deliver by selected departure time.
- Limit charge rate if main grid import approaches limit of house breaker (100 Amps)
- Control from my PC or phone
Can the OpenEVSE do (or be made to do) all of the above?
I was looking at the Zappi, which seems to do all of the above, but I would really prefer the OpenEVSE because:
- I can build it myself
- It is all open source, so if it doesn’t do something, I should be able to modify firmware or control scripts etc to make it do it
- I can set up access from my PC or phone over the LAN without having to subscribe to, and be at the mercy of, some cloud server provided by somebody else
(item 8 is particularly important to me, given the way Sonos are just forcibly obsoleting a load of their kit by pulling server support for it, could the same happen to Zappi some time in the future?)
Does all of the above seem reasonable, and will OpenEVSE do what I want?
Will the EmonPi I already have do all the monitoring and control I need?
Will I need any more current clamps? (I already have one on PV generation feed and one on Grid in/out).
I have programming experience, so if necessary I can dive into firmware or wherever the software that controls these features lives, to tweak it to my needs (and share back anything that might be useful to the community).
Many thanks for any advice, and sorry for all the questions :-o