Solar strategy in the east
I'm from Illinois. Camping out in the AZ desert at the moment, I can see that solar is easy out here. Do the math, install it right, and you are golden. Camping in the eastern 2/3rds of the US, i...
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I would also like to know more about this claim that MPPT does more vs PWM when insolation is less. (It's not the 24v panel, it's the MPPT that goes with it that counts AFAIK) With the sun direct full insolation the story is then that the PWM is almost as good as the MPPT.
Salvo's graph here does show that the MPPT, by being say an amp over the PWM (same as panel direct connection he did)all day, is twice as good as PWM when PWM is getting 1 amp :) and then when PWM is getting 8 amps mid-day, the MPPT is only a little better at 8.5 amps.
I suspect this is what "they" mean by MPPT doing better in less light, but don't know for sure. If so, it is another example of how you can "spin" statistics. Or maybe there is something real to it?
Salvo's graph here does show that the MPPT, by being say an amp over the PWM (same as panel direct connection he did)all day, is twice as good as PWM when PWM is getting 1 amp :) and then when PWM is getting 8 amps mid-day, the MPPT is only a little better at 8.5 amps.
I suspect this is what "they" mean by MPPT doing better in less light, but don't know for sure. If so, it is another example of how you can "spin" statistics. Or maybe there is something real to it?
