Friday 19 November 2021

Electric Things

The following charts show our annual electricity generation in kWh from the solar PV aray since we moved into the house, and our annual usage.


The above chart is the annual generation on the 1st January every year. There's a variance of no more than 200 kWh between the years, which is not a lot.

The following chart, accepting there's some missing data, is the daily annual consumption over the previous 12 months and therefore more granular than the previous chart.


The spike occurs last winter, when I had my two sons living in their own caravans next to the house. No.1 Son left on January 8th to take up residence in his own house and No.2 Son left in July and moved to Winchester in preparation for his university stint. Heating caravans is an expensive business. No.1 Son worked from home and thus used phenomenal amounts of power, whereas No.2 Son worked in town and was only home in the evenings.

Annual usage since they left has since plummeted to below the 15,000 kWhs prior to them inhabiting the caravans. It currently stands at 14,000 kWhs and is still heading south; however, I expect this to increase during winter due to the unseasonably warm weather we've had this year.


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