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electrical:solar:faq_mppt_series

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electrical:solar:faq_mppt_series [2020/01/09 16:38]
frater_secessus [Is MPPT required when wiring panels in series?]
electrical:solar:faq_mppt_series [2020/01/09 16:40] (current)
frater_secessus [so why do we say that?]
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-"MPPT is required for series"​ is shorthand for "when [[electrical:​12v:​electrical_notation|Vmp]] greatly exceeds battery bank voltages PWM output is hamstrung and MPPT advantage is overwhelming."​((In our PWM backup scenario we are not concerned with //maximum// power, only getting //some// power from the panels until we can replace the dead MPPT.))+"MPPT is required for series"​ is shorthand for "when [[electrical:​12v:​electrical_notation|Vmp]] greatly exceeds battery bank voltages PWM output is hamstrung and MPPT advantage is overwhelming."​((In our PWM backup scenario we are not concerned with //maximum// power, only getting //some// power from the panels until we can replace the dead MPPT.)) ​ For example, running 2 12v panels in series to charge a 12v battery bank. 
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 The flipside to this is "when Vmp is close to battery voltage then MPPT advantage is thinnest and PWM may actually make more power."​ For more on this edge scenario, see [[electrical:​solar:​output#​panel_temperature|temperature derating]]. The flipside to this is "when Vmp is close to battery voltage then MPPT advantage is thinnest and PWM may actually make more power."​ For more on this edge scenario, see [[electrical:​solar:​output#​panel_temperature|temperature derating]].
electrical/solar/faq_mppt_series.txt ยท Last modified: 2020/01/09 16:40 by frater_secessus