Friday, 20 March 2015

and then the sun came out

Here is the solar PV data from dawn to dusk, plotting production against time.  The orange background is what we would expect with a clear sky (no cloud) and full sun (no moon) at this time of year.  The black line shows the production today.  It is way down in the morning, due to the clouds.  But that dip: that’s the eclipse!

And then, for the rest of the day, almost perfect sunshine!  The black line goes up almost vertically, as the sun comes out just after 11am, and stays out for the rest of the day.

the eclipse ends, and the clouds turn to light haze


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