Good morning Jim, GOALS:
1. To charge my Tesla from a 3K PV, OutBack system through a square D panel, 240V 30 amp breaker. 2. To get the smart Grizzl-E to run as a dumb unit or simply turn itself on or off on demand as directed by the Tesla when it calls for power. The Grizzl-E status is displayed with a series of colored lights. Magenta is ready to plug in. Green flashing is charging. This works when l power it up by turning on the 30 amp breaker and plugging in the car. The solid green light is displayed when the Tesla is full or no longer calls for power. When we unplug the Tesla, the Magenta light returns as it should. This is what we expect and all is well. However for example, left alone overnight we find that the Magenta light goes away and a White light is displayed and clicking sound is heard (indicating the the contractor is trying to engage?). I can reset the system to get the Magenta light again by turning off the breaker or plugging in a 120v heater load at the the feed panel. So I expect it to takes direction from voltage levels. What am I missing? I did not state enough detail to the Grizzl-E folks. I am unsure about their service interest. As I said, I can run it manually with the breaker, 3. To find loads compatible with the OutBack System. This is all new to me. For example, I can get significant power for my Tesla charging at a mere 5A during the day even with some clouds, wow. The toaster oven question may not apply, I understand what you say. I need to experiment further. 4. Develop and manage an appropriate load for the system. It works automatically. We are finding that it protects the battery, taking from the grid if the PV/load is not balanced. 5. To see what help or interest I would get from The EVDL. SYSTEM: Our OutBack system is connected to the Grid, and 3K of PV panels with a sealed 48V lead-acid battery. We chose not to use the generator feed option or sell power to the grid. The PV controller feeds 2 inverters. The electronics manages the system, access is through the “Mate” with operations and status sent to our computer so the data is collected and we can readily monitor it each day like checking the weather. Thanks, Ron > On May 9, 2025, at 10:32 AM, jim--- via EV <[email protected]> wrote: > > You need to better describe your system and goals. Is this grid tied or > stand alone? You imply that it has a battery - true? > > What are you trying to accomplish, and what interaction are you expecting > between the two high power loads you mentioned and the PV system? I would > certainly not expect any smarts on the part of the toaster over - it's simply > going to expect a steady supply of 120 volt AC power at whatever current it > is drawing. Likely the same with the EVSE - except I assume it is expecting > 240 volts. > > Jim > > > > -----Original Message----- > From: "Ron Solberg via EV" <[email protected]> > Sent: Friday, May 9, 2025 08:07 > To: [email protected] > Cc: [email protected] > Subject: [EVDL] PV/EV Load > > Hi, > > This is about the interactions and components of a presently working > OutBack 3K PV system mounted on the roof of our home. As we search for > ways to manage the load for the system we are curious as to what AC > loads we can use. Here are two examples that have raised questions: 1.) > Grizzly 8Kw EVSE 2.) Cuisinart toaster oven > > We have charged EVs here at J&R housing since 2010 with no problems > using ClipperCreek EVSE as a service and for our 2018 Tesla. Recently we > installed an OutBack 3 Kw PV system and then a 8 Kw Grizzly EVSE as a > load to charge our 2018 Tesla. The system works, but the Grizzly system > does not interact with the OutBack system in a convenient way. As an > aside, we derated the 48A to 24A with a 30A breaker. We are pleasantly > surprised that a 5A feed setting adds up as clouds come and go to manage > power through the OutBack PV/Grid/48V battery system. It all works well. > > > The system works. My question is about convenience, sharing and > curiosity. The folks at Grizzly could not help me and I did not contact > OutBack but I am guessing that the electronics of the two systems > conflict in such a way that I have to manually use the Grizzly by > switching it at the breaker and or on occasion (briefly)add as needed, a > heater load to the OutBack service to get the Grizzly to function as I > watch its status by a series of displayed colored lights. I wonder about > the PV controller/48V battery/sun-cloud feed to the inverter. > > The electronics of the Cuisinart Toaster Oven also raises questions > about the OutBack AC output. Spikes/more data/forget it? Good old DC > loads? > > As a retired physics teacher who understands much of the electricity of > Classical Physics and wonders about the uncertainty and relativity of > Modern Physics, I cannot help but wonder if the issue I have encountered > with my EV/PV/EVSE is of interested to anyone or has a practical > solution. Since I took advantage of their sale price I have a second > Grizzly unit to swap out but I was not encouraged to do that by the > Grizzly engineers. > > Thanks, > > Ron Solberg > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20250509/f8591f1c/attachment.htm> > _______________________________________________ > Address messages to [email protected] > No other addresses in TO and CC fields > HELP: http://www.evdl.org/help/ > > > > _______________________________________________ > Address messages to [email protected] > No other addresses in TO and CC fields > HELP: http://www.evdl.org/help/ > _______________________________________________ Address messages to [email protected] No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
