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<blockquote data-quote="CreviceSucker" data-source="post: 514691" data-attributes="member: 1804"><p>Or</p><p></p><p>12 hours @ 280 Watts = 3360 Wh</p><p></p><p>12 hours @ 140 Watts = 1680 Wh</p><p></p><p><u>= 5040 Wh total</u> </p><p></p><p>5040 / 12.5 V = <u>403 AH battery consumption</u></p><p></p><p>If using Lithium batteries which provide 80 % DOD then i assume i need 503 AH of batteries.</p><p>However AGM taken down to 30 % DOD would require 1300 AH ?</p><p></p><p>500 watt solar panel on overcast winters day > 6 hrs x 500 x 0.3 = 900 watts</p><p>500 Watt panel in winter > 6 hrs per day x 500 = 3000 Watts</p><p>500 Watt panel in summer > 9 hrs per day x 500 = 4500 watts </p><p></p><p>2 x 500 watt solar panel on overcast winters day > 6 hrs x 500 x 0.3 = 1800 watts</p><p>2 x 500 Watt panel in winter > 6 hrs per day x 500 = 6000 Watts</p><p>2 x 500 Watt panel in summer > 9 hrs per day x 500 = 9000 watts</p></blockquote><p></p>
[QUOTE="CreviceSucker, post: 514691, member: 1804"] Or 12 hours @ 280 Watts = 3360 Wh 12 hours @ 140 Watts = 1680 Wh [u]= 5040 Wh total[/u] 5040 / 12.5 V = [u]403 AH battery consumption[/u] If using Lithium batteries which provide 80 % DOD then i assume i need 503 AH of batteries. However AGM taken down to 30 % DOD would require 1300 AH ? 500 watt solar panel on overcast winters day > 6 hrs x 500 x 0.3 = 900 watts 500 Watt panel in winter > 6 hrs per day x 500 = 3000 Watts 500 Watt panel in summer > 9 hrs per day x 500 = 4500 watts 2 x 500 watt solar panel on overcast winters day > 6 hrs x 500 x 0.3 = 1800 watts 2 x 500 Watt panel in winter > 6 hrs per day x 500 = 6000 Watts 2 x 500 Watt panel in summer > 9 hrs per day x 500 = 9000 watts [/QUOTE]
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