Solar Harvesting - GEEK Alert!

wildebus

Full Member
As most of you know, I like my numbers :) (shame they don't come up on the Lotto ever though!)

And like most people with Solar Setups, I wonder how well it is working. You can see the harvesting going up and down, but that is dependant on the weather and location.

This map tells you what the "solar irradiation" to expect for your location as an annual average.
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But what is it for a given time and how does it affect your solar charging on a day-to-day basis?

Well, my Weather Station stopped working ages ago, so when I got round to it, I decided to replace it with one that is always connected to the internet AND logs the solar irradiation as well :)

This is my 'irradiation' for today: (top number is irradiation, bottom is the UV index)
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and the solar yield for today so far:

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Been very cloudy today, so the yield has been very inconsistant, but there is a good correlation between the two bits of info.
For example, what should have been a peak harvesting time between noon and 1PM was actually very poor, but when you look at the irradiation chart, that dropped dramatically around that time so clearly the explanation for it. It will be especially interesting to see on a cloudless day I think.

Just thought I would share this with anyone who is curious about how well their solar is working - and why they are not harvesting as much as they think they should. This kind of info can help either confirm the reason for it, or maybe confirm they DO have a problem? (of course the other aspect to consider is if the batteries are near fully charged that will cut the charging as well so the comparision is best done when the batteries are in a position to take whatever the solar controller is able to throw at it)
 
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Clunegapyears

Full Member
As a tech numpty ... I looked at where we are .. Corsica ... good orange blob. In theory would be great with our new panels and Lithums, but no wild camping enforced here as we approach the high season ... ACSI campsites with EHU, so solar not really being used ☹. Hoping Sardinia will be more wilding.
 

wildebus

Full Member
As a tech numpty ... I looked at where we are .. Corsica ... good orange blob. In theory would be great with our new panels and Lithums, but no wild camping enforced here as we approach the high season ... ACSI campsites with EHU, so solar not really being used ☹. Hoping Sardinia will be more wilding.
guess you are saving on gas, so a slight compensation?
did you notice the blip in Switzerland? go nice and high into the mountains and a definate bonus there :)
 
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