Tuesday, 9 January 2018

2017 Solar Panel Data UK

I've been a bit slow to update the data on my website over the past 12 months as it was becoming more tedious to do every month so I decided to batch it up. Unfortunately I subsequently discovered that the Sunny Boy inverter only holds 2 months of detailed daily data but full copies of the monthly summaries which means that a couple of months are lacking details.


With another year added to the totals it's interesting to see how the months may vary by year but often a bad month will be balanced out by a better month the same year so the overall totals are much closer that you might expect. For example 2015 and 2017 were only 6kWh different at 3207kWh and 3213kWh respectively. What does seem clear is that the maximum days are dropping which might be expected as the solar panels age so in 2017 we only had 1 day with over 20kWh of electricity produced.

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