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electrical:solar:series_vs_parallel

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electrical:solar:series_vs_parallel [2019/02/01 20:13]
frater_secessus [Series]
electrical:solar:series_vs_parallel [2020/05/04 10:26]
frater_secessus [Series]
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 ====== Series and Parallel solar arrays ====== ====== Series and Parallel solar arrays ======
  
-In general, parallel arrays of nominal 12v [[electrical:solar:panels|panels]] are used with [[electrical:solar:PWM|PWM]] [[electrical:solar:charge controller|charge controllers]] and serial arrays with higher nominal voltage panels and [[electrical:solar:MPPT|MPPT]] controllers.+In general, parallel arrays of nominal 12v [[electrical:solar:panels|panels]] are used with [[electrical:solar:charge_controller#pwm]] [[electrical:solar:charge controller|charge controllers]] and serial arrays with higher nominal voltage panels and [[electrical:solar:charge_controller#mppt|MPPT]] controllers.
  
  
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   * PRO   * PRO
     * higher PV voltage can run in relatively **thinner wires** to the charge controller     * higher PV voltage can run in relatively **thinner wires** to the charge controller
-    * serial connections can provide **some charging in partial shade situations** where lower voltage parallel or single-panel connections might not.  Imagine two nominal 12v panels running at 11v in heavy cover:((due to MPPT's response to shading))  the series arrangement might yield ~22v (battery charging) instead of 11v (voltage too low to charge battery).  This also happens in low, even light (like dusk or dawn) but the amount of power harvestable at those times is so low as to be of little practical use.+    * serial connections can provide **some charging in low light situations** where lower voltage parallel or single-panel connections might not.  Imagine two nominal 12v panels running at 11v in heavy cover:((due to MPPT's response to shading))  the series arrangement might yield ~22v (battery charging) instead of 11v (voltage too low to charge battery).  Note that power harvestable at those times is so low as to be of little practical use.
     * higher voltages **work well with MPPT controllers**     * higher voltages **work well with MPPT controllers**
     * higher voltages can **charge higher voltage battery systems** like 24v.     * higher voltages can **charge higher voltage battery systems** like 24v.
electrical/solar/series_vs_parallel.txt ยท Last modified: 2024/03/09 11:00 by frater_secessus