Technical FAQs 4

Can you mix different solar panels?

Mixing solar panels of various voltage or wattage, or produced by different manufacturers, is a frequently asked question by most DIYers. Though mixing different solar panels is not recommended, it’s not forbidden and things would be ok as long as each panel’s electrical parameters (voltage, wattage, amps) are carefully considered.

Are solar panels rated higher than system voltage?

The solar panels are of voltage rating higher than the system voltage. You have two different higher voltage solar panels, i.e., one 100W/24V and one 200W/24V that you want to connect to the already working 12 V solar power system comprising the two 12V 50 W solar panels connected in parallel from the previous scenario (see the picture above).

Why do solar panels need to be connected in parallel?

Connecting solar panels in parallel is just the opposite of series connection and is used to increase the total output current of the array, and hence the total output power while keeping the same voltage. ‘The same voltage’ is the system voltage which for off-grid solar panels systems is usually as low as either 6V or 12V.

Why do solar panels vary in size and wattage?

Solar panels vary in size, wattage, and voltage. When panels of different sizes and specifications are connected to a single inverter, the arrangement must account for these variations to avoid inefficiencies or damage. Key factors include: Voltage and Current Characteristics

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Can solar panels with a voltage difference of 1 volt be used together

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Dec 25, 2023 · Note the V max power should be used not the nominal panel voltage. MPPT controller input volt limit is based on Voc total for the string. ( plus allowance for cold working)

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