[RE-wrenches] PV direct EV charging
larry at starlightsolar.com
larry at starlightsolar.com
Tue Apr 13 16:29:35 EDT 2021
Mac,
You can charge with DC directly from a PV solar array without an inverter or regulator. The current is self limiting by the amount of PV solar power you are making at any moment.
The magic is knowing know how to trigger the charge port communications so your EV controller knows that there is a safe connection to a DC power source. Perhaps the will get you started:
https://www.evcreate.nl/chademo-fast-charging-in-diy/
Be safe when working with 500Vdc.
Larry Crutcher
Starlight Solar Power Systems
On Apr 12, 2021, at 5:05 PM, Matt Sherald <matt at getpimby.com> wrote:
Mac,
Our car gobbles 11,500W when it's plugged in to the grid. Even if we reduced the charge rate it would still be a heck of a draw - the chargers in the EVs are greedy. I'll be curious to hear if anyone has a solution, but my bet is that you need to give the EV a deep well to pull from (probably deeper than a battery bank or PV array can directly and consistently satisfy).
-Matt
On Mon, Apr 12, 2021 at 7:55 PM Mac Lewis <maclewis1 at gmail.com <mailto:maclewis1 at gmail.com>> wrote:
Sorry, I should have clarified, I am interested in EV charging with no grid available. I think that Solaredge requires a grid
On Mon, Apr 12, 2021 at 5:51 PM Dana Orzel <dana at solarwork.com <mailto:dana at solarwork.com>> wrote:
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From: RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org <mailto:re-wrenches-bounces at lists.re-wrenches.org>> On Behalf Of Mac Lewis
Sent: Monday, April 12, 2021 5:24 PM
To: RE-wrenches <re-wrenches at lists.re-wrenches.org <mailto:re-wrenches at lists.re-wrenches.org>>
Subject: [RE-wrenches] PV direct EV charging
Hey wrenches,
Are there any purpose built inverters designed to charge an EV, PV direct without batteries?
Thanks in advance
--
Mac Lewis
"Yo solo sé que no sé nada." -Sócrates
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