I’m about to dive into openenergymonitor - I’ve just had my small PV array installed and ready to start looking at the stats in detail, but then realised with a bit of tweaking I can do so much more. So my openenergymonitor journey begins!
Currently, I’m unable to do much due to the layout in the meter cupboard and how the PV has been wired into the Consumer Unit - until I get the CU replaced I have time to scope things out properly and not rush into it with possibly the wrong setup. Just for info, I’m based in the UK with a standard single phase supply.
I’m currently thinking that I’d have one CT clip for the Solar generation, one for house consumption, a pulse meter for the meter (if new UK smart meters have a pulse output?) connected up with the AC-AC adaptor. There would be two sockets so a DC supply would be available for extra power.
Price wise, it looks like there is a significant cost advantage for the emonTX (with either the WiFi module or emonBase board) compared to the emonPi. That said, the overall cost of the hardware isn’t a big deal but it’d be nice to understand a bit more about the use cases each is designed for.
What would be the actual advantages of the emonPi solution over either type of emonTX solution? My thoughts are that once the emonTX is setup, it can be left running with no intervention required. I’m always cautious that a RasPi solution may never come back cleanly if the power is lost and could always need some intervention. If I were to setup an emonBase for local logging at least I could have that indoors and work on it at my desk if ever needed.