Energy Products

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How are the Performance Percentages calculated?

Looking at the circular graph the percentages do not make sense to me. For example I used PW 100% during peak hours and the circle graph Green shows 81%. Same for Off-peak, I used Solar yesterday for about 8 of 19 hours and the circle graph Orange shows 27%. And for All Day the circle graph shows 20% and between PW's and Solar I used approximately 54% of the day was Tesla energy. Also Offset doesn't seem quite right either. I can not find any info on how these values are calculated.

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