When will 2 sense device work together


#62

Screenshot_20180608-061522Hello, click here for another idea on the community forum
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#63

Hey Greg. It is definitely a very important and needed feature. I might sound like a broken record when I say we’re working on it, but we truly are. That said, device detection is always absolutely, first and foremost, our #1 priority. That is the core of Sense and improvements there are the backbone of any new features. Trust me, it will come in time!

And don’t think that your opinion doesn’t matter. My entire job revolves around our customers precisely because they matter so much. Thanks for the feedback.

@MachoDrone I’m confused…:question:


#64

MachoDrone’s previous post contains a link to a new thread for users wishing to not logout of sense to login to a 2nd Sense account. That is, they can be logged-in to multiple accounts at once…
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#66

It would be nice to be able to link 2 SENSE units that are in the same home. I have a 400 Amp service to the house which is distributed between two, 200 Amp breaker panels. I have 2 SENSE units installed - each with its unique email / login. I have to log off one account and then log in to the other account in order to see all my devices. I imagine that this would make it more difficult for SENSE to discover my devices as, for example, I have my washing machines connected to one breaker panel and the dryers on the other.


#67

I believe Ben at Sense said they have plans to link units in the future, but I don’t think its on the highest priority.


#68

Your right @skunkpilot. It’s definitely on our road map for the future. We’d encourage everyone who would find this useful to “like” @neuronorm’s original post so we can keep an eye on it and make sure the development is prioritized accurately.

Thanks!


#69

Please do this!!! I have two main panels in my home so my sense literally only reports 1/2 of my energy usage!!

I can PayPal you all for the second device immediately!!! :wink:


#70

I’ve got 3 panels in my home - one sense installed and 2 more on the way. Eager to see consolidated reporting. Thanks!


#71

Just want to add my two cents, to raise this issue’s importance in development.

The only place to monitor our home and garage for total coverage is in the meter base outside, and there were multiple problems with that (including pretty routine excursions below the temperature minimum. So, we put the monitor on the panel inside the house, but we will not be able to monitor the garage and it’s loads (currently a plug-in hybrid but eventually a full EV also). Having two monitors with the ability to merge data streams would be incredibly useful.

My mother’s home has a panel upstairs and a panel downstairs, and also is connected to a grid-tie small wind turbine (I have a recent topic about this). I’m interested in connecting Sense Solar to the wind turbine inverter, located close by the downstairs panel, but I don’t think it is worth it if I’m only going to be able to detect half the loads.

So in my case, in both locations where I have installed or would like to install Sense, I am stymied by the inability to merge multiple Sense units. Having that ability would be a big help to me, and incentive to buy several more Sense packages.

Please move this up on the development timeline!


#72

Just to add here - I just got a Sense and have 400A service. Currently monitoring only the “small normal load” panel (lights/outlets/kitchen appliances/etc) - when Sense adds support to show two Sense devices in a single account I’ll pick up a second one for my “big stuff” panel (multiple heat pumps, well pump, hot water heater, etc).

Looking forward to it!


Dual breaker boxes
#73

Device detection is a fundamentally different problem than merging info from two Sense units. It seems strange to me, as a software developer, that these two issues are competing for priority. Device detection is a deep R&D problem while merging Sense data is more of a UX and DB issue. These would normally be addressed by different developers with different skill sets.

In any case I am building a new home with 400 amp service split to two 200 amp panels and was dismayed to find that Sense won’t be able to track all of my usage in a straightforward manner.


#74

Just installed Sense, first time poster.

My house has two 200A breaker boxes with separate feeds from the meter. One holds all of my 240V items like heat pumps, water heaters, etc. The other is the usual household 110 circuits. I elected to install the sense in the second panel because it is probably the most interesting, but I am very interested in what goes on in the other half as well. So, question:

  1. Is there a way to get a second set of leads so I can monitor this half? Or do I need a second Sense?
  2. If I got a second Sense, is the app smart enough to know that my house has two Sense devices?

Kind of bummed to discover this but still hopeful I can learn some things.


#75

You are going to need a second Sense unit and another Sense account. Currently the Sense app does not support more than one unit, although there have been several request for multiple unit support.


#76

1agkirk2 is correct. Unfortunately right now you would need two Sense accounts to track two different monitors. We do have plans to add multi-monitor functionality, but that’s still at least a few months out.


#77

I have have two 200 Amp breaker boxes and 2 sense units and 2 sense account. I would love to have both breaker boxes in one account.

Ed


#78

Putting on my research-mode EE hat, I’d think that the IDEAL Sense configuration would be to have a set of current sensors (the ‘collar’ device, but smaller than the ones monitoring the main feed) for each single-ended branch circuit.

My assumption is that the information from the main feed will typically be able to identify the devices on the two-phase circuits (ganged breakers) because they are usually feeding a single device (e.g. HVAC, Electric Oven, Electric Dryer, …).

Monitoring the current on the other circuits, though, ought to allow quicker & more accurate identification of ‘similar’ devices, such as ceiling lights on one branch vs ceiling lights on another branch, or the use of a hair dryer in one bathroom/bedroom vs. another bathroom/bedroom (when they’re on different circuits).

That is a rather significant technical challenge, I know, to provide both cost-effective sets of sensor leads (probably cabled in groups for ease of installation and connection), the size of the sensors (so they’d fit in the electrical box), as well as the connection ports to the Sense device itself.

Maybe that’s the “second generation” version of sense. If it could be done for, say, only a 50% increase in price – I’d choose it!

Even if there is only the capacity to monitor, say 16 of 24 branch circuits, by careful choice of which branch circuits are monitored, I’d think the device detection could be much more accurate and faster. (e.g.: I might not chose the circuit for the garage, for example, because the primary items on that branch may be the opener and one exterior light.)


#79

One possible enhancement that would not require hardware changes would be to allow the second set of CT’s supplied in the solar version to be used for a split or second main instead when the home has that but no solar. This would “just” be a programming or software change. You can already intelligently figure out where my solar and mains CT’s are connected from the variety of possible connection methods.


#80

You’re assuming that solar sampling is done at the same rate as the mains. I’m betting that it is done at a lower rate, squeezing in just a little sampling in-between main samples, given the the hardware I’ve seen int the probe.


#81

@Dan.C

While they don’t do device identification based on electrical signatures, there are systems whose installation/setup is similar to what you’ve visualized, such as those sold by Brultech and The Energy Detective.


#82

@Dan.C,

I was considering trying to build a Sense-based “ground truth” probe by doctoring a regular Sense unit:

  • Snip away the insulation into a short thick (industrial) 110V patch cord. One that is thick enough to fit snuggly inside a Sense
    CT.
  • Tap into the hot and neutral lines to power the Sense and supply sampled voltage. Only question is whether to live the second hot tap on the Sense empty or plug the same hot line from the cord into it.
  • Loop one of the CTs around the power cord to collect current info going through the cord.
  • Re insulate the tapped spot on the cord. And voila, a wall plug probe.

But then I speculated I might see heinous start-up issues with both scenarios related to the missing second voltage leg. Either the Sense wouldn’t see any voltage on the second leg or it would see a voltage that is either 180 degrees out of phase/wrong polarity with respect to the other leg or see no voltage.