Why won't my inverter put out?
I feel there should be a 'That's what she said' joke in here somewhere... I booked a camping site that I thought had hookups, but when I got here: no hookups. I needed more juice than my house ...
Forum Discussion
A simple energy audit will answer your questions. For example, if the freezer draws an average of 2a @ 120v, for 8hrs a day, that's 16a x 10 (@ 12v) = 160Ah's per day. So, how much solar would it take to replace that 160Ah's? Presuming you can get 10hrs of useful sunlight, then 16a x 10 hrs is needed. So, a minimum of 280w pwm pointed, or 400-500w flat pwm or mppt.
You would need to size your bank to accommodate for the fact that for 14hrs a day there will be no input. So, solar would carry the load, plus charging, during the day. At night, the bank would get drawn down by about 96Ah's, over 14 hrs of no solar. So you're looking at a 200Ah bank, minimum, just for said freezer.
But these are just made up figures... you need to do your own audit, allowing for worse case scenarios.
You would need to size your bank to accommodate for the fact that for 14hrs a day there will be no input. So, solar would carry the load, plus charging, during the day. At night, the bank would get drawn down by about 96Ah's, over 14 hrs of no solar. So you're looking at a 200Ah bank, minimum, just for said freezer.
But these are just made up figures... you need to do your own audit, allowing for worse case scenarios.
