Solar Panel Q&A List - Post your questions about solar

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109

Hiya, solar panel is connected directly to the Bluetti

110

Hi @Paul2

the prodction of solar energy and how much it is can be influenced by many factors. Shadows, angle of the panel, idensity of light/sun. Its also possible that you solarpanel might defective or parts of it. You can try to part shadow it and see if the ooutput to the AC180 changes. If not, then something is wrong with the panel

111

Good day people. Wanting to confirm my proposed Bluetti set up for my off grid shop. I have AC 300+B300k +B300k. I am planning on this system via PV array: 6 each, Renergy 320W rooftop panels. The panel specs are: 320w, 43.82 OCV, 8.46A, 20A fuse rating. Any opinions on if got my math right or general comments??
Appreciate

Cheers

112

Hello @alvey1958,

Based on the information on the panels, and that the AC300’s max solar voltage per input can be 150 volts, and the total panel voltage will need to be some amount less than that, you can have a maximum of 3 panels in series (3 * 43.82 = 131.46 volts).

The AC300 also has a maximum current of 12 amps, again per input, and your panels can output a maximum of 8.46 amps. So, for your panels I would recommend having two arrays of 3 panels in series. Connect each array separately to each of the solar MPPT inputs on the AC300. This will utilize the full capacity of all 6 of your solar panels.

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113

Thank you for your response and expertise. I truely appreciate your assistance!!!

All makes sense.

Cheers!

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114

Hello I’m looking for help. I’m looking at installing solor panel to my AC300. The one’s I’m looking at buying are 400 watts, 37v, and 13.7 amps. My question is how can i use 4 ouf these and stay under the restrictions? Thanks

115

Hello,

Here is some important information regarding solar connections for the AC300:

  1. The AC300 has two MPPTs, and each can connect the number of solar panels shown in the image below.
  2. For optimal performance, it is recommended to connect all solar panels in series. The PV input voltage range for the AC300 is wide, from 12V to 150V, while the maximum input current is only 12A. Connecting in series increases both voltage and current, resulting in higher efficiency. Please note that different types of solar panels should not be mixed, as this can affect efficiency and may damage the panels over time.
  3. If the solar input current exceeds 12A, our device will limit the current, and any excess will be wasted. Therefore, while the current can exceed the limit, the voltage must not.
  4. The solar input power can exceed 2400 watts as long as the total PV open-circuit voltage (VOC) for each string does not exceed 150V.

If you have any further questions, please feel free to reach out!
image

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116

I just purchased 12 more panels that have a VOC of 37.3
These will go to my two Apex 300.
I got them from A1solar.
I already have two Ac300 with panels capable of 2400 watts input but usually I get a max of 21oo watts.