[HN Gopher] IoTaWatt Open Source WiFi Electric Power Monitor
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IoTaWatt Open Source WiFi Electric Power Monitor
Author : mrep
Score : 36 points
Date : 2021-02-25 21:18 UTC (1 hours ago)
(HTM) web link (www.iotawatt.com)
(TXT) w3m dump (www.iotawatt.com)
| ljosa wrote:
| I installed it last year. Very happy.
| daniellarusso wrote:
| How many clamps are you using?
| Diederich wrote:
| Wow, this is slick!
| nickt wrote:
| The OpenEnergyMonitor emonPi has been around a while and also
| quite good, and supports MQTT which I don't think IoTaWatt does.
|
| https://guide.openenergymonitor.org/technical/emonpi/
| https://openenergymonitor.org
|
| [edit] I see it can use EmonCMS which is part of the
| OpenEnergyMonitor project.
| mciancia wrote:
| Looks nice, sad that there is no 3-phase version
| daniellarusso wrote:
| It works with three phase.
|
| There are two ways to do it.
|
| Either, one clamp, and it calculates the other two, or you can
| use three clamps.
| ortusdux wrote:
| I've been considering an Emporia Vue 2 for a while now. It would
| end up being about half the price of this. Does anyone know
| anything about it? I'd like to go open source, but my primary
| motivation is lowering power costs, so its hard to justify
| doubling my ROI time.
| reeddavid wrote:
| I started using the Emporia Vue 2 about a month ago. Overall
| I'd say it's great. I hooked up a few circuits individually and
| I got crucial insight into unusually high energy usage from a
| heat pump + air handler + auxiliary heater setup.
|
| I much prefer this approach (by Emporia and IoTaWatt) of
| multiple CTs (non-contact sensors applied to specific circuits)
| vs. the "Learning" devices that try to interpret what's using
| energy based on a signature of power usage, with reportedly
| very poor success.
|
| The app is quit useful. I do wish I could get access to the raw
| data by default, without needing to send it through their cloud
| first (only way to get data off the decice) and submit an
| export request to get emailed a CSV.
| imoverclocked wrote:
| InfluxDB integration? Mains, branches and my solar inverter? If I
| had 3-phase, it would do that too?!
|
| Very slick! I've ordered one.
| phrz wrote:
| I'm not well-versed in this field but had heard of the Sense, and
| was almost going to buy one, except I detest that it's closed off
| to everything but the cloud. Furthermore, I've heard the mains-
| only monitoring it uses, while trying to divine the power sinks
| by their signature, leaves much to be desired. This looks like
| just the thing for me.
| ed25519FUUU wrote:
| Out of curiosity, do you plan to add a sensor to every output
| breaker in your box?
|
| I'm interested in a closed (for everyone but ME) system as
| well. I'm not sure I'll be able to fit much hardware in the
| breaker box so I'm unsure.
| daniellarusso wrote:
| If this is possible, I know my breaker box has enough room,
| but is there any risk with all those cables with the 3.5mm
| end causing arcing?
|
| How do you route them out of the box? Should the wires criss-
| cross? Bundle them?
| amluto wrote:
| I would be considerably more likely to buy this if there was a
| wired Ethernet version.
| _jal wrote:
| Oooh, I've been wanting something like this for some time. Prior
| searches have only turned up systems far, far larger and more
| complex than a house needs.
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(page generated 2021-02-25 23:00 UTC)