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| 4 or 5 panels? http://solar-guppy.com/forum/viewtopic.php?f=6&t=347 |
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| Author: | solar408 [ Sat Oct 08, 2005 12:10 pm GMT EthGMT ] |
| Post subject: | 4 or 5 panels? |
Hello all. I'm new to this forum and fairly new to the AE world. I have 4 Evergreen 102watt panels connected to a ST1500. On gloomy days the DC voltage will climb to the high 70's but when the inverter tries to make power the voltage dives and the inverter stops. I assume this is because there is not enough DC amperage. So, question is, if I were to add a fifth panel and boost the open voltage to 100 would I make more power on not so sunny days and would I be asking for trouble on full sun days? The inverter says it can take an ablolute max open DC voltage of 125V and a MPP tracking range of 42-85V so it looks like it could handle the additional voltage but perhaps the MPP tracking would not function. Thanks in advance. |
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