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electrical:solar:status [2022/02/27 13:34] frater_secessus [morning] |
electrical:solar:status [2022/08/09 12:09] frater_secessus [in absorption] |
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- | This page is to help solar beginners tell what their system is doing without special equipment. | + | This page is to help solar beginners tell what their system is doing without special equipment. A [[electrical: |
===== numbers rather than icons or lights ===== | ===== numbers rather than icons or lights ===== | ||
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**with PWM controllers** | **with PWM controllers** | ||
- | * Vpanel | + | * Vpanel |
* Controller output decreasing as current demand drops. | * Controller output decreasing as current demand drops. | ||
* the controller may get warmer as current demand drops((percentage of time the PWM circuit is turned OFF increases)) | * the controller may get warmer as current demand drops((percentage of time the PWM circuit is turned OFF increases)) | ||
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==== morning ==== | ==== morning ==== | ||
- | **Are your batteries | + | **Are your batteries at a reasonable |
If not, address this issue soon because discharging too deeply will [[electrical: | If not, address this issue soon because discharging too deeply will [[electrical: | ||
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==== afternoon ==== | ==== afternoon ==== | ||
- | **Are your batteries starting Absorption by noon-ish** and completing Absorption by late afternoon? If so, continue to the next step. | + | **Are your batteries starting Absorption by noon-ish** and completing Absorption by late afternoon?((depending on charging voltage and current Lithium may require no absorption at all to reach 100% SoC)) If so, continue to the next step. |
Note: You can tell your batteries are in Absorption because the bank will be at Vabs, the controller' | Note: You can tell your batteries are in Absorption because the bank will be at Vabs, the controller' | ||
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==== evening ==== | ==== evening ==== | ||
- | **Are you hitting sundown with //at least// 12.6-12.7v((depending on your particular battery)) in your lead acid bank? | + | **Are you hitting sundown with //at least// 12.6-12.7v((depending on your particular battery)) in your lead acid bank?**((~13.2v for LiFePO4)) |
If not, either we are not harvesting enough power or we are using too much. Stop running heavier loads when the controller can no longer hold Vfloat. | If not, either we are not harvesting enough power or we are using too much. Stop running heavier loads when the controller can no longer hold Vfloat. |