Forum Discussion
Salvo
Dec 28, 2014Explorer
Without measuring the panel output power, your time was wasted writing all that. :S
BFL13 wrote:
A. 230w (two 115w) total Isc of 14.5a to battery, batt voltage 13.5 = 196w
230-196= 34w wasted or 34/230 = 14.8% wasted power with PWM all season
B. One 230w and MPPT 15.5a to battery, batt voltage 13.5 = 209w
230-209 = 21w wasted or 21/230 = 9% wasted power with MPPT at 16C ambient, 44C panel. (April)
C. 230w and MPPT 13.5a to battery, batt voltage 13.5 = 182w
230- 182 = 48w wasted or 41/230 = 21% wasted with MPPT at 25C ambient, 51C panel (July)
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,193 PostsLatest Activity: Jan 28, 2025