Correct position for the Total Generation Meter

[qeipl]

Hello,

My hydro has been running for a couple of weeks, merrily churning out around 730W, and I'm about to sign up for a home generation contract with Green Energy, who have requested a schematic of the installation.

I installed the total generation meter in the following position so that  I could get a measure of the efficiency of the rectifier/grid tie inverter:

Generator ----- Generation Meter ----- Rectifier ----- Grid Tie Inverter ----- Consumer Unit ---- Supply Meter

The GTI is displaying an output of approximately 90% of the kWh showing on the generation meter.

Is the generation meter in the 'correct' position - recording the output of the generator?
Or should it be between the GTI and the consumer unit - recording the input into the grid?

I obviously prefer the former but don't want to get in a fankle with credits and ROCs at a later stage.

Green Energy told me to ask my installer. I gave myself a good grilling but am none the wiser.

Anyone out there know for sure?

Malcolm

[Ted]

You should be measuring the output from the GTI, so position the meter between GTI and consumer unit.  There should be a lockable disconnection switch there too.

[guydewdney]

<aol>
I concur with ted - for once

the 'power' made at before rectifier point is not 'grid power' therefore not meterable properly, surely.
</aol>

[qeipl]

Thanks. I'll move it.

[RichardKB]

Yes TED is correct where you have it is is also measuring the losses in the rectifier and the GTI.

Rich