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Put simply, an inverter will convert solar panel generated direct current (DC) into ready-to-use alternating current (AC). There are a massive range of inverters on the market, and knowing or choosing the right one can be a complex and frustrating business. isoenergy can help identify the right inverter for a small 4kWp system, right up to a commercial installation requiring several inverters. Although they might do the same thing, the build quality of inverters can vary enormously. Be wary of low-cost offerings, which might make your installation cost v probable payback figures look excellent, but which do not account for the extra expense of having to replace an inverter when it fails. Many manufacturers will now offer warranties on their product, although it’s well worth reading the small print. isoenergy can help guide you through the maze, and only work with experienced manufacturers producing high quality inverters.

Micro Inverters

Generally used on smaller arrays, micro inverters are just that – inverters in micro. Attached individually to each panel, micro inverters immediately change the current from DC to AC, before directing the electricity through a gateway and into the main consumer unit. Each gateway can handle up to twelve micro inverters. Micro inverters each convert electricity from one panel, so any disruption in the panel from shading or defect only affects one inverter. This is particularly important in a smaller system where one inefficient panel would have a proportionately larger effect on the rest of the system. Although micro inverters have a space-saving benefit compared to a normal inverter, they do come with a higher cost of installation, and changing one means getting access to an individual panel. Every project is different, and isoenergy will only recommend micro inverters if we believe that it is the best solution for you.

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