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electrical:solar:panel-bank_ratio

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electrical:solar:panel-bank_ratio [2022/01/03 13:00]
frater_secessus [1:1] fse
electrical:solar:panel-bank_ratio [2022/06/05 23:07] (current)
frater_secessus [1:1]
Line 4: Line 4:
 ===== 1:1 ===== ===== 1:1 =====
 //1:1// == 200W solar + 200Ah battery bank. //1:1// == 200W solar + 200Ah battery bank.
-This is generally considered the minimum, as it can work fine in [[electrical:solar:output|sunny areas]] with light [[electrical:12v:loads|loads]].  It may not be enough with heavier use, or in the winter when the sun is low and daylight short.  [[electrical:solar:rationing|Power rationing]] may be necessary.+This is generally considered the minimum, as it can work fine in [[electrical:solar:output|sunny areas]] with light [[electrical:12v:loads|loads]] and shallow [[electrical:depth_of_discharge|depths of discharge]].((10-20% DoD?))  It may not be enough with heavier use, or in the winter when the sun is low and daylight short.  [[electrical:solar:rationing|Power rationing]] may be necessary.
  
 [[https://mouse.mousetrap.net/blog/2020/07/02/the-problems-with-11-solar-charging/|Working backwards]], fully charging lead-chemistries from 50% [[electrical:depth_of_discharge|DoD]] by 1:1 solar requires  ~8.45hrs of [[electrical:solar:output#insolation_maps|Full Sun Equivalent]] on MPPT [[electrical:solar:charge_controller|controllers]], or ~9.7hrs FSE with PWM. **There is nowhere in the United States that averages 8.45hrs of FSE year around**.  The highest is Honolulu with an average of 5.96hrs. The highest monthly average is Las Vegas in June (7.69hrs). [[https://mouse.mousetrap.net/blog/2020/07/02/the-problems-with-11-solar-charging/|Working backwards]], fully charging lead-chemistries from 50% [[electrical:depth_of_discharge|DoD]] by 1:1 solar requires  ~8.45hrs of [[electrical:solar:output#insolation_maps|Full Sun Equivalent]] on MPPT [[electrical:solar:charge_controller|controllers]], or ~9.7hrs FSE with PWM. **There is nowhere in the United States that averages 8.45hrs of FSE year around**.  The highest is Honolulu with an average of 5.96hrs. The highest monthly average is Las Vegas in June (7.69hrs).
electrical/solar/panel-bank_ratio.1641232845.txt.gz ยท Last modified: 2022/01/03 13:00 by frater_secessus