GreenWave Reality PowerNode (bar) first impression

Recently my colleague Frank (props to him) discovered this device which could well be a good alternative to the (ever delayed) Qees power strip. We both decided to order one of these devices. It’s a very reasonably priced device (€50,-) for it’s specifications:

  • 6 switchable and measurable sockets
  • Overcurrent (10A fuse) -and surge protection
  • 0.1W precision on load monitoring (energy measurement)

Here’s a picture of the device:

I was very curious whether this device would work with HouseAgent out of the box. After pairing the device (piece of cake, if you follow the manual) with my Aeon Labs z-stick, I tried to add the device to the HouseAgent database. This is what I got:

Hmm odd values, at that point I had no clue what values to expect. So, I decided to give Homeseer a go to so how it would recognize this device. After importing the device into Homeseer, this is what I got (a huge pile of devices/values!):

(click to enlarge)

Aha, so it’s a multi instance z-wave device! Notice the multiple instances underneath the root device (device 8). I suspect this is what causes the issue in HouseAgent/open-zwave, looking at the logfile of HouseAgent I noticed this log line:

2012-03-20 17:47:19:953 All endpoints in this device are the same as endpoint 1. Searching for the other endpoints...

It seems only the first instance is detected and the root device, I need to troubleshoot this a bit further.

I decided to play around a bit with the device from within Homeseer, all the functionality seems to work as advertised (the metering works, switching individual sockets works!). The nice thing is that all the sockets are measured individually, but also the power bar itself is measured and switchable as a whole. One minor drawback of this device is the fact that you need to poll it for it status (it doesn’t advertise it’s status on the z-wave network). Another point of attention is the fact that GreenWave doesn’t support this PowerNode without their own gateway product. Although it appears to work just fine, I take no responsibility if it doesn’t work for you!


This is a very nice device for it’s price, in fact it does all I expect of a power bar. This bar is going to be great for my TV setup! There’s some work to be done on the software side (HouseAgent), but I am pretty confident I can get it to work with some effort.

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12 Responses to “GreenWave Reality PowerNode (bar) first impression”

  1. […] Maarten Damen already discussed some of the software related aspects of this power-strip, I’ll only talk about my hardware related […]

  2. Joel Carnat says:


    That PowerNode looks great. Especially if you can connect it to a z-stick rather than to their Gateway.

    I’m just starting to look at domotics so I know barely nothing.

    Can you only have a PowerNode and a Aeon Labs z-stick and get the data from a Linux box to insert them in RRDtool ?


  3. Maarten says:

    I have not yet got the powernode working with open-zwave, that needs to be fixed before you can readout values from this powerbar.

  4. Dirk says:


    Where did you buy this? I’m interested in buying one with French-style connectors.


  5. Kent says:

    Where did you purchase the power strip?

  6. Wouter says:

    Great product! Could you share the place you’ve bought it?

  7. Ferdi says:

    Does this already work in combination with openzwave? I saw your effort on there google group, but it look like this issue is not active anymore.

  8. Maarten says:

    No, I didn’t continue my work on this. It’s still on my todo list, but in the lower regions so to speak..

  9. Ferdi says:

    Are you able to put some “pressure” to the people that run the openzwave group? there no reaction to other people that tried to help. maybe you can.

  10. viorel says:

    Where did you bought this power strip?

  11. Maarten says:


    I got it at the Nuon energiewinkel:

    Thanks for visiting my blog.

  12. Hans says:


    when the powerstrip looses mains and then when mains comes back, all outlets are switched on. Do you know if there is a way to configure the outlets to off-state after a mains failure?

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