Tweet
Understood. That's what I meant to say, but it didn't come across that way.
-
-
Understood. That's what I meant to say but it did not come across that way. Pardon my struggle with words (among other things)Comment
-
Based on the helpful comments and advice, this is what I came up with for sizing my project. Comments??
Size system to recharge four 12V 3000mAh RC batteries
4 x 12V x (3000mAh/1000) = 144 wh
Size solar battery for twice the load: 2 x 144wh = 288 wh
Converting to ah : 288 wh/12 V = 24 ah solar battery
Need to replace 288 wh in solar battery with 6 hours of sunlight
288 wh/6hr = 48 watt solar panel
Adding 20% contingency: 48 x 1.2 = 60 watt panel
Comment
-
1) Summer Solstice, you might get 6 hours of usable sunlight. More likely you will have 4 hours by them time you factor in poor alignment (aim) and some cloudy conditions
2) Adding 20% contingency: 48 x 1.2 = 60 watt panel
nope, more like 80% contingency is the realistic value.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
gen: http://tinyurl.com/LMR-ListerComment
Comment