https://lithoguru.com/life/?p=549 Musings of a Gentleman Scientist Mon, 12 Mar 2018 18:03:53 +0000 hourly 1 https://wordpress.org/?v=6.4.5 https://lithoguru.com/life/?p=549#comment-156875 Mon, 12 Mar 2018 18:03:53 +0000 http://life.lithoguru.com/?p=549#comment-156875 I’ve geeked out about our array (SunPower 327W panels with Solar Edge inverter). It’s been in for 3 years, does not supply electricity needs for the full house though, too much shading from our live oaks on the roof to allow for that many panels and I was not about to sacrifice the live oaks for this project 🙂
One of my favorite graphs is plotting kWhrs used against median temperature for the month, going back 5 years. It shows efficiency gains from shading of the roof (and new HVAC system). Not sure if the efficiency of the panels has decreased in these three years or if it’s just variability in cloud cover. Need more data.

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