Originally posted by Yet another Yeti
Rate this 200w panel compared to two renogy 100w panels
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With mppt the higher the imp volts it has to down convert the less efficient it will be. With 2 100 panels 38 or so to 12 is less efficient than the 200 watt 21 to 12. The loss would be in heat in the controller. And if your gonna later want 300 watts keep all the panels the same. Different imp vmp panels cost you power also.
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Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
solar: http://tinyurl.com/LMR-Solar
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Fwiw if you use 100 watt renogy panels get the latest slim design. They are lower vmp and higher imp. They gave me a couple more amps vs 18.9 5.29 old style panels on a 300 watt system. But use only on mppt controller. Imo vmp on the slims are to low for parallel with pwm in 90f temps.Last edited by Ho jo; 02-28-2019, 04:14 PM.Comment
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