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electrical:solar:nonessential [2019/06/23 08:39] frater_secessus [how much surplus current is there?] |
electrical:solar:nonessential [2020/01/13 11:19] frater_secessus [how much surplus current is there?] |
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====== opportunity loads ====== | ====== opportunity loads ====== | ||
{{ : | {{ : | ||
- | Solar power installations are generally [[electrical: | + | Solar power installations are generally [[electrical: |
In practice, actual loads may be heavier in the daytime (as when working with power tools) or at night (as when watching movies or running a forced-air furnace). | In practice, actual loads may be heavier in the daytime (as when working with power tools) or at night (as when watching movies or running a forced-air furnace). | ||
Due to the nature of battery charging there are better times and worse times to run non-essential loads. | Due to the nature of battery charging there are better times and worse times to run non-essential loads. | ||
- | [[electrical: | + | [[electrical: |
- | + | ||
- | This is especially true for Lead-Acid chemistries that do not take much current in [[electrical: | + | |
===== how much surplus current is there? ===== | ===== how much surplus current is there? ===== | ||
- | It is common for Lead-Acid batteries to consume C/100 or C/200 amps to Float, meaning that **during Float** you will have 99% or more of your panels' | + | It is common for Lead-Acid batteries to consume C/100 or C/200 amps to Float, meaning that **during Float** you will have **at least 99% your panels' |
**During Absorption** the charge current is tapering down as the battery accepts less; the more it tapers down the more is available for loads.((agaom. normal + opportunity)) | **During Absorption** the charge current is tapering down as the battery accepts less; the more it tapers down the more is available for loads.((agaom. normal + opportunity)) | ||
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At the start of Absorption the controller still needs near-Bulk levels of current for charging. | At the start of Absorption the controller still needs near-Bulk levels of current for charging. | ||
- | For [[electrical: | + | For [[electrical: |
===== timing opportunity loads ===== | ===== timing opportunity loads ===== |