We've done some off grid EV charging, and one thing that makes life much
easier, is to go to the lower power chargers. So far, we've just done
PV to battery inverter to AC charger to car. less efficient, but less
trouble. We've also setup dedicated charging outlets/ circuits on
relays to prioritize the house battery.
Ray Walters
Remote Solar
303 505-8760
On 4/13/21 4:29 PM, [email protected] wrote:
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/
<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 <[email protected]
<mailto:[email protected]>> 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 <[email protected]
<mailto:[email protected]>> 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 <[email protected]
<mailto:[email protected]>> wrote:
SolarEdge
Dana Orzel Great Solar Works, Inc.
*C - 208.721.7003 [email protected] <mailto:[email protected]>*
Idaho Contractor - # 028765 Idaho PV # 028374
NABCEP # 051112-136 www.greatsolarworks.com
<http://www.greatsolarworks.com/>
_"Responsible Technologies for Responsible People since 1988" ___
*P*Please consider the environment before printing this email.
*From:* RE-wrenches <[email protected]
<mailto:[email protected]>> *On Behalf
Of *Mac Lewis
*Sent:* Monday, April 12, 2021 5:24 PM
*To:* RE-wrenches <[email protected]
<mailto:[email protected]>>
*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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PIMBY Energy, LLC
NABCEP Certified Solar PV Installer®
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