Google Powermeter & solar PV

[cornishben]

I have a currentcost energy monitor on the incoming house supply, linked to google powermeter via the currentcost bridge thingy.  This seems to work reasonably well (ignoring the CC accuracy issues, lack of granularity in powermeter, etc.). 

We've just added an 860W PV system and I'd like to log output.  We're using 2 soladins, hence to log directly I'm gonna need to buy or make up the link cable x2 and then work out how to log the output of both simultaneously, plus having an always on PC or similar to log..

As the CC monitor can receive 3 clamp inputs I was hoping to add an extra clamp on the live from the PV (combined inverter outputs) and also log this to powermeter.  Has anyone done similar ?  I realise I probably won't be able to link them in powermeter (ie subtracting generated from consumed) but even if I could just log them both independently it would be a start

[Kombi]

It is not going to work as the CC adds all the input together. So if your PV system is producing say 500w and your house consumption is 1kw, the CC will read 1.5kW consumption. It is designed for one or three phases supply. WHen using 3 phases it just add up each individual phase reading.

[EccentricAnomaly]

It is not going to work as the CC adds all the input together.

However, it reports them separately:

Code:

<msg>
  <src>CC128-v0.12</src>
  <dsb>00065</dsb>
  <time>11:50:26</time>
  <tmpr>21.1</tmpr>
  <sensor>0</sensor><id>00077</id><type>1</type>
  <ch1><watts>00112</watts></ch1>
  <ch2><watts>00109</watts></ch2>
</msg>

This is with the permanently connected current clamp and a plug in one both on the cable into my consumer unit. The display shows the sum of the two (i.e, twice my actual consumption) which would, indeed, be pretty useless for the proposed setup.

(Note, I added a few line breaks to that XML for readability)

[cornishben]

ok thanks guys.  So I guess it's a question of whether the separate data can be sent to Powermeter, or only the sum total