[HN Gopher] Monitoring energy usage with smart plugs, Prometheus...
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Monitoring energy usage with smart plugs, Prometheus and Grafana
Author : hddherman
Score : 135 points
Date : 2024-05-05 18:05 UTC (4 hours ago)
(HTM) web link (ounapuu.ee)
(TXT) w3m dump (ounapuu.ee)
| dainiusse wrote:
| No need for that mate, just deploy home assistant or something
| similar and you will get this (and more) out of the box
| mindslight wrote:
| Right up until the Home Assistant UI turns into a lagfest, the
| installation dies, and you can't debug why because Docker. At
| least that's what happened to me. And no, it wasn't RPi SD
| power issues. This happened on an otherwise-stable amd64
| server.
|
| The Home Assistant authors' hostility towards simple native
| distributions is now a show stopper for me. Long term
| reliability is more important than quick initial setup.
| cyberax wrote:
| HA is actually pretty debuggable. Just install the SSH
| plugin, then SSH into the HA box, and then simply "docker
| exec" into the target HA container.
| mindslight wrote:
| ... and then not have any of your usual development tools,
| environment, system layout, or repair techniques because
| you're inside someone else's "works on my system" that they
| threw over the wall.
|
| It's obviously _possible_ to debug what goes on inside a
| Docker image. It 's just not something I'm particularly
| interested in dealing with, especially under duress.
| TeMPOraL wrote:
| > _because you 're inside someone else's "works on my
| system" that they threw over the wall._
|
| FWIW, this can also be called _stable state you can
| retreat to_. And build upon, e.g. adding a layer of
| debugging tools.
|
| I don't really like to deal with Docker, but at least I
| have reasonable certainty it'll work. I prefer system
| package manager or MSI, but if not that, it beats having
| to build something when it's near-guaranteed that what
| I'll get is _not_ the binary the authors had in mind, if
| it even runs at all.
|
| (Then again, I routinely rebuild Emacs to stay on the
| bleeding edge. But it took a while to work out all the
| usual dependency mess, and I even broke my system once
| doing it.)
| mindslight wrote:
| It's certainly within my gamut to jump into an embedded
| system to debug it, bringing/building tools as I go. I'm
| just not looking to _opt into_ doing that on something
| that doesn 't need to be that complex in the first place.
| Same reason I run one decently powerful amd64 server that
| does many things rather than a stack of Raspberry Pis,
| one per software package.
| cyberax wrote:
| > ... and then not have any of your usual development
| tools, environment, system layout, or repair techniques
| because you're inside someone else's "works on my system"
| that they threw over the wall.
|
| The thing is, the "it works" is reproducible because of
| containers. Which is a step above just hoping that it
| works.
|
| HA is also easy to "patch". You can just install your
| custom components in `config/custom_components`, it can
| also be used to "override" core HA files.
|
| Finally, if you are doing intrusive development, you can
| easily launch HA locally. macOS, Linux, and WSL are
| supported. You will lose the ability to install add-ons
| via the addon manager, but that's about it.
|
| FWIW, I had the same aversion to their custom OS and
| their crazy container-based setup initially. For a couple
| of years, I used to run HA as a Python app and managed
| the dependencies manually. Then I tried the HAOS and
| it... kinda just worked.
| baq wrote:
| It's a Python app, _of course_ being distributed as a docker
| image is the sanest way of doing it. I don 't see why you
| couldn't just pip install it if you really wanted, but having
| been a Python developer for close to two decades, I wouldn't
| want to.
| mindslight wrote:
| I'm talking about distribution package managers, not pip.
| darkwater wrote:
| I happily ran a dockerized HA on a Debian for years now,
| no need to do any complicated debugging (and even if I
| did, it would not be difficult to inspect it properly)
| tw04 wrote:
| Nobody is preventing you from running Home Assistant core and
| deploying everything else yourself manually.
|
| Demanding the authors who gave you the software for free also
| provide support for an installation method they've offered up
| with no support is a bit ridiculous, don't you think?
|
| That attitude is what causes open source projects to die
| though...
| mindslight wrote:
| What do you mean "demanding support" ? I remember Home
| Assistant authors being _actively hostile_ to people
| packaging their software outside of the official Docker or
| RPi images. Which is why it wasn 't in the Debian
| repository, pushing me down that Docker path in the first
| place. Here's the same dynamic on an associated project in
| 2021: https://github.com/NixOS/nixpkgs/pull/126326
|
| If anyone chimes in and says they've been running Home
| Assistant from nixpkgs (where I am now) for several years
| with no hiccups, then I will certainly reconsider my
| opinion. But based on my experience and what I've continued
| to read since, it feels like trying to do that is an uphill
| battle. One I'm not looking to take on, especially for
| automation I'm relying on.
| Havoc wrote:
| Grafana is a hell of a lot nicer & controllable than HA
|
| HA is great, but it's not the answer to everything
| madaxe_again wrote:
| Agreed.
|
| I live off grid, so energy monitoring is a big deal for me.
| HA is fine for "at a glance", but if I want any kind of
| detail, I use grafana. I actually have my old openhab
| instance still running purely as I can't be faffed setting up
| all the piping from MQTT into influx again.
|
| It's also possible to integrate the usage over time using a
| dynamic time window to get Wh figures from wattage, which is
| enormously useful for me, and is more accurate than the
| figures HA gives in their power system.
|
| HA is dead useful for getting alerts when the laundry
| finishes, though - dumb machine, smart plug, look for a
| sudden drop in power. Also does all our climate control.
|
| So different tools for different jobs.
| zimpenfish wrote:
| Seconded - HA's graphs are great for a simple "is this going
| up or down" glance but when you want to put a whole bunch of
| things together for comparison or perform aggregations or
| calculations, that's when you want Grafana et al.
| Cyph0n wrote:
| Why not both? You'll need to run a server either way.
|
| HA can export data to Prometheus. Setting up and running HA
| is much easier than figuring out how to get a set of
| different smart devices to export metrics to
| Prometheus/Influx. Let HA deal with that.
| icehawk wrote:
| It might be, but for all of the examples in the blog post, HA
| does this out of the box.
| Banditoz wrote:
| Why not both?
| whitehexagon wrote:
| I'm also looking at a custom solution for my current migration
| from WiFi sockets to Zigbee. It seemed impossible to do an
| offline installation of home assistant, and discouraging signs
| for running it without an internet connection.
|
| There seems to be a sonoff usb stick that might act as a hub
| and allow command-line monitoring of all devices, should be
| perfect for feeding into grafana/prometheus.
| baq wrote:
| HA will happily run offline; if you mean HAOS then I don't
| know what it does but it's an unorthodox Linux distro, but
| once it installs it should also run offline without issues.
| I'm also using their skyconnect zigbee coordinator and it
| works very well.
| whitehexagon wrote:
| Yeah one of the tests was a RPi image and it wouldnt
| complete without a LAN internet connection (only got 4G).
| And it seemed far too weighty for a bit of home automation.
|
| I recall the online requirement was for some ntp server
| requests that cant be disabled.
| baq wrote:
| Yeah that's more of a rpi hardware requirement as it
| doesn't have a battery and you realistically want to have
| accurate time on your smart home controller, even -
| especially - after it cold boots after power loss.
| Xerox9213 wrote:
| Yeah, not to mention the ability to automate things.
|
| My latest automation: when the white noise machine is on for the
| baby, the doorbell volume is turned down.
| alchemist1e9 wrote:
| Could you expand on how prometheus or grafana helps you
| automate? I didn't know either enabled that.
| Jleagle wrote:
| I think this was supposed to be a reply to one of the Home
| Assistant threads
| holri wrote:
| Missing from the blog. The power reading of the Tosmota device
| should be calibrated: https://tasmota.github.io/docs/Power-
| Monitoring-Calibration/
| jhenkens wrote:
| I would love a semi-automated way to generate a power-profile
| for ESP-Home. Find a smart room heater with 3 levels perhaps,
| and use home assistant to gather values at "Off", "1/3", "2/3",
| "3/3", with a downstream power plug as reference (and a known
| consumption of the downstream plug as well).
|
| So I can just take my EspHome plug and very quickly generate a
| standard set of mapping values for voltage and wattage.
| ssl-3 wrote:
| The easy way is with a resistive space heater and a
| multimeter. I keep a big, dumb, thrifted "oil-filled
| radiator" space heater around just to use as a big, safe
| 3-speed dummy load with reasonably OK repeatability (nichrome
| heaters do not have perfect temperature coefficients, but
| they're stable-enough that using them to measure temperature
| quickly begins to be a non-starter).
|
| The level of integration you choose is entirely up to you. I
| don't do this kind of thing much, so I'm OK with kludging
| together a test rig as-needed with a handheld meter and
| tearing it apart when I'm done. This makes good use of my own
| time and tools, according to my personal proclivities.
|
| But if I were doing it often, then I might buy the equivalent
| of the HOPI meter that Big Clive uses in many of his videos.
| It displays current and voltage, multiplies them to get
| power, and also displays power factor -- concurrently, on
| separate digital displays, in real time.
|
| Or I might build something: A box with a current shunt with
| some panel-mount meters and appropriate connectors would not
| be too challenging to put together in an afternoon with parts
| from Amazon and Lowes, depending on one's ability and desire
| to deal with sheet metal at home. (I use galvanized steel
| handy boxes and cover plates from Lowes for all kinds of
| small-ish stuff. They're cheap, common, and durable-enough.)
|
| Whatever the approach, a simple space heater with multiple
| literal-speeds seems like a cheap and useful way to make it
| happen unless you're trying to automate every part of it.
|
| (But by then, making a dumb multi-speed space heater into a
| "smart" multi-speed space heater that can be activated
| programmatically with software like ESPHome and some relays
| is probably pretty much a no-brainer, isn't it?)
| ars wrote:
| If someone else wants to try this, I strongly recommend against
| using WiFi for the plugs, instead use Z-Wave or Zigbee.
|
| Wifi is just not meant for this use case, it will be unhappy if
| you start adding a lot of devices, and it will slow down your
| main use of WiFi for your phone.
| seszett wrote:
| Not the first time I hear this but I have about 20 ESP devices
| on my WiFi, almost all of them pushing data regularly and
| polling for instructions (I don't use HA, but a simpler home
| made solution) and I have no problem at all.
| meatmanek wrote:
| It helps that the IoT things almost invariably use 2.4GHz
| while your data-hungry computers and phones usually use 5GHz.
| dsab wrote:
| Guys what are your favourite smart plug? I need one with easy
| integration with grafana, not sucking, and shipment to EU
| country?
| tetris11 wrote:
| ZigBee list of good devices:
|
| https://www.zigbee2mqtt.io/supported-devices/
| ckolkey wrote:
| I'm a huge fan of https://www.shelly.com/ - they have a built
| in webserver and can be controlled via POST requests. No cloud
| needed.
| septic-liqueur wrote:
| I also like their products very much. I installed a few of
| them in my sockets. Some people argue that it's not safe to
| put in your sockets walls and the 16A limit is realistically
| lower before they can overheat and cause fire. That scared me
| a little bit but I think most of the reports are from bad
| wiring like using thin wires or not tightening the clamps
| enough
| spockz wrote:
| I have a Shelly pro 1PM in my Breaker box for the car
| charger. It gets to 80 degrees Celsius easily at 16A. I
| have two other gripes with it:
|
| 1: the slots/clamps are small which makes fitting 4mm2
| wires a chore already. 6mm3 is impossible. 2: the
| overcurrent protection is very trigger happy. Due to solar
| panels in the street that voltage can vary significantly.
| Apparently the charger doesn't always keep up exactly
| resulting in a current of 16.0001A which is more than the
| limit of 16 and poof, off it goes. Not sure whether this is
| an actual fault in the charger or some rounding error.
| argulane wrote:
| ATHOM plugs are very nice, you can order one with ESPHome or
| Tasomata firmware preinstalled and they can ship from Germany
| https://www.athom.tech/
| kryptoncalm wrote:
| Note this vendor is different than the Athom company making
| the Homey smart hub: https://homey.app/
| whitehexagon wrote:
| I've been happy with my tplink sockets, especially running them
| off-cloud, and getting some command line control over them
| (although I think that debug api got blocked on later firmware
| updates). But quite easy to feed data into any db once you have
| such control.
|
| Just about to try some ikea zigbee sockets, seem cheap(7e) in
| comparison. I hope I can also get them working command line
| based, just trying to setup a sonoff usb stick with some python
| package (bellows) as we speak.
| Mister_Snuggles wrote:
| I've got some Sengled E1C-NB7 plugs that I really like. The
| form factor is nice, they work perfectly with Zigbee2MQTT and
| Home Assistant, and they've got a power button on the device
| itself.
|
| I want to buy more and they don't seem to be available anymore.
| kryptoncalm wrote:
| I have two plugs in use that ship to EU (at least NL) and are
| made (or at least certified) in the EU. The latter matters to
| me because of fire hazards etc (e.g. [1]). Both can handle 16A
| and connect over zigbee which helps to reduce idle power
| consumption. 1. Innr plugs, e.g. SP240
| https://www.innr.com/en/product/innr-smart-plug-eu-with-powe...
| 2. Robb zigbee smart plug https://www.robbshop.nl/robb-smarrt-
| slimme-stekker-zigbee-36...
|
| [1] https://hackaday.com/2023/11/03/just-how-dodgy-are-cheap-
| usb...
| nikisweeting wrote:
| I love these ATORCH ones on Amazon, they have a screen with a
| bunch of useful details, super stable wifi connection, over-
| voltage/current/power protection, etc.
|
| https://www.amazon.com/gp/product/B0BGSYJQK6/
| leeoniya wrote:
| i'm trying to nudge Grafana into the direction of IoT/SCADA
| control, so we can be both, a great way to viz (data sources) and
| to control (data sinks). not personally a huge fan of having to
| recommend Home Assistant for that use case :)
|
| (i work at Grafana Labs)
| recursinging wrote:
| This would be great. Were using Grafana dashboards for thermal
| vacuum testing. Everyone is always asking for simple SCADA
| functionality.
| hackernewds wrote:
| could you expand on your comment? what is data sinks as applied
| to your idea?
| leeoniya wrote:
| similar to how you can make plugins for data sources, you can
| make plugins for data sinks, like write over modbus, or POST
| to http API or, publish to some kind of MQTT broker, etc.
|
| since IoT devices have limited storage, usually the metrics
| are dumped into another system like Prometheus. but that
| Prometheus data source used plotting cannot be used to
| control the device, which will have another endpoint and
| another API, so we need some kind of concept of data sinks.
| at least that's my idea right now, allow data links
| configured in the panels to poke some "data sink" with values
| that are available in the DataFrame or custom-entered into
| the UI, like we do with traceID for Exemplars, etc.
| applied_heat wrote:
| If grafana supported numeric entry fields and buttons it could
| easily replace wonderware intouch etc.
|
| Traditional scada systems have such brutal plotting abilities
| they are ripe for disruption
| leeoniya wrote:
| for sure. we're continuously adding capabilities to the
| Canvas panel to support SCADA-type and flowchart use cases.
|
| https://grafana.com/docs/grafana/latest/panels-
| visualization...
|
| there's some initial movement towards "press Canvas element
| -> invoke HTTP api call":
|
| https://www.youtube.com/watch?v=T6fg1TpfBUg
|
| we added streaming/websocket data sources a few major
| versions back.
|
| i'm hoping to make something more standardized and pluggable
| like data sources.
| stavros wrote:
| I got a Zigbee power breaker and hooked it up so all my flat's
| power goes through it, and then made an e-ink display to show my
| power consumption:
|
| https://www.stavros.io/posts/making-the-timeframe/
| 3abiton wrote:
| That was a great write up! I wish I had the time to follow-up
| this guide. Thanks for sharing it!
| stavros wrote:
| Thank you! It's not very hard to use, you basically just
| flash my firmware and use my script to display images on the
| Timeframe. That's about it.
| hackernewds wrote:
| Related to your comment so much, I got hurt
| gog wrote:
| Can you link the power breaker?
| stavros wrote:
| This one: https://www.aliexpress.com/item/1005005657383634.ht
| ml?spm=a2...
| shrx wrote:
| I'm curious, which power breaker do you have?
| stavros wrote:
| This one: https://www.aliexpress.com/item/1005005657383634.ht
| ml?spm=a2...
| wannacboatmovie wrote:
| You're running all your flat's power through that $14
| Chinese rubbish and never assumed that shortcuts were taken
| or quality would be an issue? How do you know it will
| continue to function as a circuit breaker and isn't just a
| piece of wire inside?
|
| For the uninitiated, CE marking is meaningless (it allows
| for self-certification).
|
| I'd like to see Big Clive do a teardown of one of those.
| theshrike79 wrote:
| You can get less shit ones that aren't made of Chinesium
| from Shelly
| wannacboatmovie wrote:
| Great suggestion. Some of their modules appear to be UL
| certified.
| stavros wrote:
| > How do you know it will continue to function as a
| circuit breaker and isn't just a piece of wire inside?
|
| I don't care. I connected my previous breaker after it.
| wannacboatmovie wrote:
| Why not just use a current transformer? (Clamp over wire
| type) It's much safer.
| stavros wrote:
| Do you know of a Zigbee one? That's also a good option.
| wannacboatmovie wrote:
| Some options at the $10 price point on AliExpress, though
| I cannot recommend one, maybe another reader can. CTs are
| the generally accepted way to do this and don't have to
| modify mains wiring. Could also build your own; CTs are
| inexpensive.
| stevenhuang wrote:
| > Why not just
|
| Please learn to never use this type of phrasing when
| offering suggestions. Your entire exchange was needlessly
| patronizing and off-putting.
| wannacboatmovie wrote:
| Thanks Dad.
| dist-epoch wrote:
| > $14 Chinese rubbish
|
| Where do you think the "quality" devices are made?
| aksss wrote:
| I think the aliexpress link for the display is busted (as they
| do).
|
| A natural integration would be with Home Assistant. I'm not
| sure if the Earu breaker has an OOTB integration with HA yet,
| beyond doing something like Zigbee2MQTT and configuring
| entities for readings. It's a good pattern though - integrate
| meter with your automation hub, let the automation hub push the
| images to displays, for meter and everything else.
| ryall wrote:
| It's annoying that smart plugs/bulbs etc use wifi when Powerline
| exists
| whitehexagon wrote:
| I have a box of old X10 devices here, one of the most reliable
| home automation systems I ever set up. I only switched to WiFi
| when my iobridge X10 controller failed and I couldnt work out
| the RS232 protocol for a different controller.
| Dalewyn wrote:
| Powerline ethernet dumps an utterly horrifying amount of
| electrical noise into both the wiring and the surrounding area.
| Please don't use powerline unless you have no other solution.
|
| Note: Powerline ethernet should not be confused with Power Over
| Ethernet which is perfectly fine.
| baq wrote:
| I'm using it on two outlets after not having enough
| prescience to install ethernet in my wardrobe-turned-office -
| got any reading materials?
| WesolyKubeczek wrote:
| You need to be careful with what plugs you choose, though,
| because they each have, let's say, their own peculiarities.
|
| For instance, their overvoltage protection might not align well
| with what the local regulations say. For example, in my region of
| EU, the upper voltage tolerances are such that 264V must trigger
| an instant poweroff, and also anything producing power must shut
| off if the average voltage over the last 10 minutes was 253V or
| more. However, TuYa sockets which pretty much are the only in-
| wall variety I was able to find on the local market, shut off at
| 260V. This tends to be somewhat problematic in an area saturated
| with PV installations, like the one I'm living in.
|
| This problem is compounded by the fact that the reported
| measurements of sockets sitting on the same phase tend to differ
| quite a bit. Some sockets tend to overstate the voltage compared
| to neighboring sockets sitting on the same wires. Thus, they shut
| off when they think it's 260V, while it might just as well be
| 255V.
|
| Just saying that if you put lots of those in your walls, you
| might suddenly find yourself in a need to prepare some
| automations to try and bring the sockets on once the voltage is
| back to normal. This particular variety of sockets won't come
| back on after the voltage drops.
| baq wrote:
| Shelly relays can be configured to do all these things and the
| voltage safety threshold itself is also configurable (at least
| in the Plus devices) but they aren't zigbee. Otherwise great
| little devices.
| darkwater wrote:
| I cannot really understand why Shelly doesn't offer ZigBee
| (and now Matter) options, only Wifi. This has always been the
| biggest blocker for me.
| richardjennings wrote:
| I scrape power usage metrics from Tapo P110s and push them to
| Grafana Cloud using https://github.com/richardjennings/tapmon -
| although as other commenters have noted - using Wifi for smart
| plugs has its rough edges.
| rkagerer wrote:
| I second that. I replaced a bunch of wall switches with Leviton
| WiFi smart ones and would never go WiFi again. They're totally
| unreliable. My Meross smart plugs fair a little better but
| still lose connectivity now and then (got a bit better with
| updates).
| ssl-3 wrote:
| I hear a lot about reliability issues with various wifi smart
| devices.
|
| I've had perfectly lovely reliability with wifi smart devices
| in my mixture of zigbee/wifi at home, such that I don't
| really have a preference. Except for one cheap ESP8266-based
| wifi relay module that had some liquid damage (not the
| module's fault), and the LED driver in my very first RGBW
| light bulb finding death after being used for a few years (a
| common-enough tale regardless of connectivity choice), they
| seem to Just Work.
|
| It's all semi-random brands of devices, bought over time.
|
| I'm not doing anything _particularly_ fancy with the network
| itself: It 's just a couple of hardwired dual-band Mikrotik
| access points, with one upstairs at the back of the house and
| one downstairs at the front of the house (perhaps non-
| obviously, on non-overlapping channels). A Pi 4 with OpenWRT
| quietly does the packet-slinging.
|
| Like in many other places, the 2.4GHz band is approximately
| ruined where I live these days. It's noisy and slow. But it
| all works well enough to reliably toggle a relay on or off,
| at least.
|
| Am I just lucky? Are others just unlucky? Or is there an
| actual pattern here?
| recursinging wrote:
| One step further. I just installed the Emporia Vue 2 in my
| distribution box. 16 CTs plus the three mains phases. It's ESP32
| based and there is a great ESPHome project that you can flash it
| with for local only reporting. Add some HA and VictoriaMetrics,
| and now I can see how the whole house behaves with Grafana. Next
| up, Zero-Export using this data to steer my little OpenDTU solar
| plant. We live in such cool times!
| septic-liqueur wrote:
| Opendtu solar plant - care to elaborate?
| recursinging wrote:
| OpenDTU is an open source project using an ESP32+CMT2300A for
| talking to Hoymiles Micro-Inverters. Local Only.
| jauntywundrkind wrote:
| I did some scouting about for what microinverters would be
| usable without a full professional install, for a small
| under half kilowatt playing around. I was hoping I could
| snap up some used enphases & try stuff out with a 200w
| panel & my existing batteries. But I really didn't turn up
| much; most discussion online made it seem like you needed
| special installer access to get anywhere with Enphase.
| Exciting to hear maybe this microinverter idea might not be
| totally dead in the water.
| pzduniak wrote:
| Is anyone aware of any other OSHW alternatives to this?
| Preferably with Ethernet. ESPHome would be preferable.
|
| The clones I can find are roughly the same price as the
| "original" hardware.
|
| ATM90E32AS seems to be ~$1 per channel on JLCPCB, so I'd
| imagine this could be pretty cheap with SMT assembly. My use
| case is like ~60 circuits.
| applied_heat wrote:
| Victoria metrics and grafana is great. I only wish I could
| enter descriptions for the metrics to populate the description
| in the grafana metrics explorer which is traditionally done by
| Prometheus metric metadata "help" field.
|
| Victoria metrics/ grafana is supplanting our industrial
| historian, which is admittedly not a best in class product - I
| am sure osi pi is better
| 123pie123 wrote:
| i've just bought a cheap esp32 with a light sensor connected to
| it. then connected light sensor (ie bluetac) to my electicity
| meter that pulses every 1/1000 1KW/Hr, it uploads the data to
| google sheets which graphs the output - works great
|
| I also have another esp32 at my elderly relatives house with a
| pir sensor connected to it, it's also sending the movement data
| to a different sheet on the google sheets site, so that i can
| monitor some sort of movement.
|
| i'm i expecting google to discontinue this service at anytime -
| yes, but its working for now. you can write and read data from
| the google sheets via json via the esp32, not very inutitive but
| doable (and free!!)
| gog wrote:
| I have a Frient Zigbee device that does the same, but sends
| data to Home Assistant.
| 123pie123 wrote:
| Home assist looks good, but my requirements was that my
| elderly relative was being monitored by all my family (ie
| they're not on my home wifi/lan) hence the data on the
| movement needed to be on the internet for all to see
| whitehexagon wrote:
| nice, I like the simple approach. My old meter only had a
| rotating disc and it took all my effort to get a sensor
| connected to my arduino that could detect the black mark on the
| edge of the disc. There was just enough mem for a http service
| to allow me to pull that value into my iobridge for remote
| monitoring.
| eMerzh wrote:
| Homeassistant + Power calc
| (https://github.com/bramstroker/homeassistant-powercalc) really
| does wonder here,
|
| you can "simulate" power of fairly stable appliances.
|
| Then you chart that in a nice Sankey chart or in standard charts
| and enjoy
| sponaugle wrote:
| I used IoTaWatt devices, which can be installed in panels. It is
| a great solution for by circuit monitoring, and has direct
| influxdb integration so you can use Grafana.
|
| Per plug monitoring is cool however for getting specific devices
| on a circuit.
|
| (Short video about the setup:
| https://www.youtube.com/watch?v=-tcbJCvuJG8)
| gibbonsrcool wrote:
| Wow it's a small world. I just discovered your channel recently
| and love the content. Probably watched the home lab video like
| 10 times. I have a historic building with 3 vacation rentals
| that I'm in the process of adding some intelligence and
| monitoring to, including a raspberry pi kiosk based on one of
| your videos. Thanks for making them!
| aksss wrote:
| Surprised there's not more mention of Shelly monitors in these
| comments. They're great for whole house (service entrance) and
| circuit power monitoring. Pretty open integration, OOTB
| integration with HA.
|
| I think it makes more sense to use "dumb" OTS circuit breakers in
| your house and augment with add-on monitor than combining the
| capabilities into a tightly-coupled single device.
| fidotron wrote:
| Facetious but half serious reaction: surely grafana usage
| nullifies any possible benefit from the monitoring? If there is
| one piece of software regularly using way more resources than
| seem reasonable it's that one.
| kasey_junk wrote:
| I nerded out on this a few years ago and ended up buying a not
| well known device called a rainforest automation eagle
| (https://www.rainforestautomation.com/rfa-z114-eagle-200-2/). Its
| a pretty straight forward little linux device that reads your
| smart meter (after being enrolled via your utility). It exposes
| an xml api that I bridge to Prometheus
| (https://github.com/kklipsch/reagle).
|
| I also bridge my utility (ComEd's) pricing feed to prometheus
| (https://github.com/kklipsch/comed_exporter). Between those 2 I
| get pretty good whole home utilization and pricing info graphed
| into Prometheus (and thus into Grafana).
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