Detecting Electric Vehicle (EV) devices

After about 3 1/2 months my sense recognized my Tesla Model 3. The device from that point was working for about 3 weeks and then just stopped seeing the Tesla (using the stock mobile kit 240v NEMA 14-50 @32A). Any ideas on what to do?

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The data science team has been playing wack a mole with the software updates from Tesla. Both the detection of the car and the capture of all of the actual charge has been intermittent and I would continue to expect that for a while or until Sense is tied into the Tesla API.

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Ok.

I had reached out to Sense support regardless just to log a ticket regardless.

Thanks for the information.

Cheers

I think this is a good idea Justin. As a long time sense owner and user of a Chevy Volt L1 charger I’d love to get a sense of how many other L1 users there are.

Thanks for the feedback, @zorkerz. We’re having some conversations to determine the best way to take a look at L1 charger popularity amongst our users.

Count me in! I can’t justify installing L2 at my house with only the one PHEV.

Update to my support. The Sense folks identified that the most recent firmware update changed the electrical signature for charging rendering its previous detection as not recognized. The support indicated that the Sense would need time to re-recgonize the car with it’s new signature.

Magically that same evening, when I plugged my car in, it in fact re-recognized it as the same Tesla Model 3 and we are off and running again! Love this product and love the company support.

Cheers

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We’re concerned about household Always On, trying to eliminate vampire loads. What about EV vampire loads?
PHEV/EV charge until full, then use electricity to maintain the battery or provide features. When something breaks or there’s a glitch, their vampire load with full battery can increase 3-5X. A common way to discover this is when the 12V battery is dead & needs a jump or randomly noticing 5+% of range is lost over a weekend parked unplugged at the airport.
Can we do better? Pair a Smart Plug with the Level 1 charger. Get a baseline for normal vampire load after big battery is full. Set an alarm if load goes above 2-3X normal.
Which Smart Plug (SP) would have these features & does Sense show a graph of watts vs time for the Level 1 charger using the dedicated SP?
Which SP can handle 1800W (120V*15A) routinely? There doesn’t seem to be a heavy duty version & damaged outlets are reported. The kasa-smart-wifi-outdoor-plug-kp400 is rated for 1875W. Does that integrate with Sense?

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No, and I don’t see Sense integrating non-energy-monitoring plugs anytime soon. The only available options are the Kasa HS110 & HS300 or the Wemo Insight.

The EU (240V) HS110 is rated to a higher wattage.

I would point out that the EU version of the HS110 is not certified for use here in the US. While various people in these threads have modified connections for it to monitor 240v devices, that violates electric codes and invalidates your insurance coverage. So, don’t!

There has also been some discussion of the need for a certified solution. Unfortunately, Sense has lots of trouble with 240v devices, in particular complex ones like HVAC systems. While the market for a 240v configuration from Kasa (or perhaps from Sense itself) is a bit of a head scratcher, you’d think that it would be easy to produce…it’s basically just the core of the EU version packaged a bit differently and certified. Oh well, maybe some day.

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Hope this is the right topic. I’ve had my Model S Raven since October and Sense has still not detected it. I’m using the Tesla Wall Charger (NEMA 14-50 plug model) and the breaker is on my subpanel (Sense installed on the main panel).

For the first couple of months I was charging at full 40A rate, but when I also had a dryer running at the same time and saw the demand charge from the power company have backed it down to 16A.

Anyway, is there a process to contact Sense and have them look at my account and see if they can get my car to be detected, or is it a something that may or may not be detected?

Short answer to that is “yes” but EVs are very high on the detection dev priority list as far as I know.

@JustinAtSense posted this above but just to reiterate:

Running in parallel with the dryer could no-doubt cause some detection issues. The Tesla charger is ramping while the dryer is cycling a heat element on and off.

Sounds to me like your data might be just what the Sense team might want to look at. support@sense.com.

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Thanks, I’ll reach out to the support email address!

another vote here for Tesla L1 charging.
i use 240v occasionally, but most charging here is at 120v and neither has been detected.

I have had my Tesla Model 3 Long Range AWD since September and my Sense has not recognized it yet. I charge using the Tesla wall connector at 48 amps. The Sense is inside of my main panel and the wall connector is connected to my subpanel. Happy to share data if it would help.

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Have my Sense installed for 3 months now, still hasn’t been able to detect my Model S.

A little off topic so I apologize. I noticed you are using solar generation to charge your EV and this solar synchronization is available in the OpenEVSE which works with 120 or 240 line feeds. There is one problem with EVSE when using solar as there is a significant minimum charge current (6Amp) as part of EVSE signaling protocol.

For reference here is what my 2015 Ford Fusion Energi looks like when plugged into my ChargePoint Level II Home charger.

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Nice. Here’s the same car (Ford Fusion Energi) on a Leviton 120V charger and HS110. It hasn’t seen as much travel as usual so we have been using mostly in hybrid mode to keep the 12V battery charged.

If anyone with a 240V charging Tesla (or two) in PG&E’s territory is interested, I’m trying to figure out if my kludged together Tesla charging “detector” can work across multiple houses. To run it for your house/cars, I would need:

  • Your PG&E “Green Button” output for whatever period of time you want me to try to extract the EV charging. I can combine multiple years.

  • If you have solar (and a net meter), I would also require your Sense data for the same period of time. I need solar so that I can (kind of) recombine your 15 min PG&E net meter readings back into something close to 15 min Total Consumption. That’s what I have to do for my setup.

  • In return, I’ll give you back a Sense-compatible hourly data file that contains what my detector finds as well as weekly/ bi-weekly waveform PNGs or PDFs showing what my detector did (example below)

The whole experiment is documented here, in the link below. PM me if you are interested.

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