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electrical:solar:panels [2020/01/14 16:23]
frater_secessus [flexible] 		electrical:solar:panels [2020/05/17 11:14]
frater_secessus [monocrystalline]
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 Solar panels, also called photovoltaic (PV) panels, produce DC power from sunlight to charge batteries and provide electrical power.  The panels can be used single or in [[electrical:solar:series vs parallel|series or parallel]] arrays. Solar panels, also called photovoltaic (PV) panels, produce DC power from sunlight to charge batteries and provide electrical power.  The panels can be used single or in [[electrical:solar:series vs parallel|series or parallel]] arrays.
  
-Since PV necessarily run at higher voltages than the batteries they charge, a [[electrical:solar:charge controller|charge controller]] is placed between the PV and the battery bank.+To avoid overcharging,((a bit of an oversimplification, admittedly)) a [[electrical:solar:charge controller|charge controller]] is placed between the PV and the battery bank.
  
 [[electrical:solar:output|Many factors]] will affect output; and panels will rarely generate power equal to their laboratory rating. [[electrical:solar:output|Many factors]] will affect output; and panels will rarely generate power equal to their laboratory rating.
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     * most expensive to produce     * most expensive to produce
     * slightly worse than poly in partial shading     * slightly worse than poly in partial shading
 +    * ill-suited to [[electrical:solar:charge_controller#pwm|PWM]]/[[electrical:solar:charge_controller#shunt|shunt]] controllers because of their higher voltage (and lower current)
  
  
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-Flex panel started out as thin film (see below) but has moved to crystalline cells since 2018.  +The other challenge is to make solar cells that can slightly flex.
  
 === crystalline === === crystalline ===
  
-While the flex panel market has largely gone to poly/mono crystalline, there are obvious issues related to making flexible objects out of brittle silicon crystals.  Handle with care, and bend as little as possible.+While the flex panel market has largely gone to poly/mono crystalline, there are obvious issues related to making flexible objects out of brittle silicon crystals.  It is not clear why the market went that direction.   
 + 
 +Handle with care, and bend as little as possible.
  
 === thin film === === thin film ===
electrical/solar/panels.txt · Last modified: 2024/01/04 16:54 by frater_secessus

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