Cloud cover has meant today has not been as good as yesterday for solar generation. The day started reasonably bright, with horizon-to-horizon white cloud, slightly drizzly. By 10am the solar array was only just managing 0.5kW. The clouds hung around all over lunchtime, which meant it was only pulling about 0.6-0.7k during peak time. But the clouds started breaking up about 3.30pm, and between 4-5pm, the rig was pulling a more healthy 0.9-1kW during breaks in the cloud.
It's now (practically) 6pm, and it's down to about 300W in bright sunshine. I may get a bit more today, but not much.
Total for 29th August 2013: 5.1kWh
Is it worth keeping an excel file with the total energy produced on which date? You might be able to plot a graph with it in a year's time.
ReplyDeleteFantastic idea - thought the same thing myself. Already doing it :-)
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