electrical:solar:overpaneling
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electrical:solar:overpaneling [2022/10/28 16:29] frater_secessus [vs. charge controller] victron quote |
electrical:solar:overpaneling [2023/04/10 16:34] frater_secessus [vs. battery bank] |
The overpaneled system's power output bell curve is //shifted upwards// and cut off by the controller when it reaches its limits. This is known as clipping, trimming, or clamping due to the "flat top" appearance of the overpaneled output curve. | The overpaneled system's power output bell curve is //shifted upwards// and cut off by the controller when it reaches its limits. This is known as clipping, trimming, or clamping due to the "flat top" appearance of the overpaneled output curve. |
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With modest overpaneling the clipping is relatively minor. Victron notes that: | With appropriate overpaneling the clipping is relatively minor. Victron notes that: |
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>> Generally total energy harvested from a 130% panel oversizing results in less than 1% annual energy loss. -- [[https://www.victronenergy.com/blog/2014/03/28/matching-victron-energy-solar-modules-to-the-new-mppt-charge-regulators/source]] | >> Generally total energy harvested from a 130% panel oversizing results in less than 1% annual energy loss. -- [[https://www.victronenergy.com/blog/2014/03/28/matching-victron-energy-solar-modules-to-the-new-mppt-charge-regulators/|source]] |
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Since the underbanked system has less capacity will reduce your actual [[electrical:solar:sizing#your_reserve_needs|reserve days of power]] to some extent. But during daytime there is //some// solar power coming in and an overpaneled configuration will harvest relatively more power in sub-optimal conditions. The smaller bank will get through Bulk and well into Absorption faster, too. This will help extend the //effective// reserve days of power. | Since the underbanked system has less capacity will reduce your actual [[electrical:solar:sizing#your_reserve_needs|reserve days of power]] to some extent. But during daytime there is //some// solar power coming in and an overpaneled configuration will harvest relatively more power in sub-optimal conditions. The smaller bank will get through Bulk and well into Absorption faster, too. This will help extend the //effective// reserve days of power. |
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| Further reading: |
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| * [[electrical:solar:slim_reserve|slim reserves]] |
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electrical/solar/overpaneling.txt ยท Last modified: 2023/11/22 10:31 by frater_secessus