ac_coupling:start
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| ac_coupling:start [2020-09-03 10:56] – removed accubank? guy_stewart | ac_coupling:start [2021-04-12 03:03] – [Monitoring] guystewart | ||
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| ==== 3.1 Lead batteries ==== | ==== 3.1 Lead batteries ==== | ||
| - | 1 kWp installed PV power requires approximately 5kWh of battery: | + | 1 kWp installed PV power requires approximately 5kWh of lead acid battery: |
| * 100 Ah at 48 Vdc | * 100 Ah at 48 Vdc | ||
| * 200 Ah at 24 Vdc | * 200 Ah at 24 Vdc | ||
| * 400 Ah at 12 Vdc | * 400 Ah at 12 Vdc | ||
| + | Each additional 1 kWp of AC PV will require an additional proportional 5 kWh increase in lead acid battery storage. | ||
| ==== 3.2 Lithium batteries ==== | ==== 3.2 Lithium batteries ==== | ||
| - | 1,5 kWp installed PV power requires: | + | 1,5 kWp installed |
| * 100 Ah at 48 Vdc | * 100 Ah at 48 Vdc | ||
| * 200 Ah at 24 Vdc | * 200 Ah at 24 Vdc | ||
| * 400 Ah at 12 Vdc | * 400 Ah at 12 Vdc | ||
| + | Each additional 1.5 kWp of AC PV will require an additional proportional 4.8 kWh increase in battery storage. | ||
| ===== 4 Requirement of adding DC-Coupling - MPPT Solar Chargers ===== | ===== 4 Requirement of adding DC-Coupling - MPPT Solar Chargers ===== | ||
| Line 89: | Line 91: | ||
| Reason: recover from deadlock situation of AC-Coupling only situation. | Reason: recover from deadlock situation of AC-Coupling only situation. | ||
| + | |||
| + | There is no Factor 1.0 limit that applies for DC coupled PV through a Victron MPPT. Nor is there a specific minimum amount of battery storage capacity, though please follow battery manufacture specifications for maximum charge rates. A rule of thumb is C10 (10% of Ah capacity in A) for lead acid batteries, and C2 (50% of Ah capacity in A) for lithium batteries. | ||
| ===== 5 Software configuration ===== | ===== 5 Software configuration ===== | ||
| - | Multis and Quattros with factory settings will not shift the AC output frequency to regulate charge current. When setting up an AC Coupled system, install either the [[ess: | + | Multis and Quattros with factory settings will not shift the AC output frequency to regulate charge current. When setting up an AC Coupled system, install either the [[ess: |
| + | |||
| + | The Inverter RS will automatically shift frequency without any additional configuration required when a surplus/ | ||
| Other options, __all deprecated__, | Other options, __all deprecated__, | ||
| Line 101: | Line 107: | ||
| ===== Monitoring ===== | ===== Monitoring ===== | ||
| - | See [[ccgx:start|section | + | See [[https:// |
| ===== DISQUS ===== | ===== DISQUS ===== | ||
| ~~DISQUS~~ | ~~DISQUS~~ | ||
ac_coupling/start.txt · Last modified: 2022-04-12 06:47 by bob