The set up

The set up
5.46mm jet delivering 0.68 l/s to the pelton which is rotating at 900 rpm and generating 135 watts into the grid.

Wednesday, 12 November 2014

It's just Hinkley B and me now !

What an exceptional week: from scarcely enough flow to more than enough to meet peak generation.  So with all the energy I'm exporting, it's now just me and the nuclear boys keeping the grid from collapsing !

Going through four step-ups in generation in so short a time has minded me to take the four photos below of the meters monitoring the dc output of the SmartDrive, to emphasise two points made in an earlier post:
  1.  the pv inverter (PVI) is not very efficient, especially at lower power levels but gets better as power increases
  2. the dc system voltage falls as power output increases, and eventually it comes down to within the range  (100 ~ 320v dc) at which the MPPT function of the inverter can operate.
Just nice to see it so clearly illustrated.

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