I am about to purchase 16 Lishen 272ah cells (3.2V each).
I want a 24v system so I plan to do a 2P8S battery bank. I will be getting a Growatt 24v SPF 3000TL all-in-one unit.
The battery bank will be 544 ah (13 kwh) once assembled.
I have 10 cheap panels which have been collecting dust for years, They're 12v 100w for a total of 500w at 24v.
My area gets right at 5 hours of "sun hours" daily average throughout the year. My 500w of panels will yield 2.5kwh @ 24v (104ah) daily if the 5 hours average holds true.
If I were to ever discharge the bank to 20% I would have 435ah to replenish to get back to 100% (Which on LiFePo4 is not good anyway) which would take just over 4 days of good sun.
I'm almost embarrassed to admit, I'm an electrician by trade, but some of this is all new to me. No one ever asked for my knowledge of theory to determine if I was fit to run conduit and pull wire, haha. I would appreciate anyone who can verify my math looks ball park correct, or if I am missing any gross details.
Thank you all!
I want a 24v system so I plan to do a 2P8S battery bank. I will be getting a Growatt 24v SPF 3000TL all-in-one unit.
The battery bank will be 544 ah (13 kwh) once assembled.
I have 10 cheap panels which have been collecting dust for years, They're 12v 100w for a total of 500w at 24v.
My area gets right at 5 hours of "sun hours" daily average throughout the year. My 500w of panels will yield 2.5kwh @ 24v (104ah) daily if the 5 hours average holds true.
If I were to ever discharge the bank to 20% I would have 435ah to replenish to get back to 100% (Which on LiFePo4 is not good anyway) which would take just over 4 days of good sun.
I'm almost embarrassed to admit, I'm an electrician by trade, but some of this is all new to me. No one ever asked for my knowledge of theory to determine if I was fit to run conduit and pull wire, haha. I would appreciate anyone who can verify my math looks ball park correct, or if I am missing any gross details.
Thank you all!