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Question:

Why are solar panels grid-like?

Solar panels are all divided into these squares, forming a grid like pattern. Is it possible to have a single piece of solar panel?

Answer:

Solar cells are semiconductor devices like computer chips. Current manufacturing methods create small squares of semiconductors. Companies are researching ways to make thin film solar cells that can be painted on or manufactured in large, possibly flexible sheets, but so far the technology to do that is still more expensive than making little squares and then assembling them into big panels. That may change in the near future, but I can't be sure.
These grids are required to absorb heat from sun and increasing the energy productivity :)
Yeah, but if something happened to it you would have to replace the whole thing. This way you only need to replace a small bit of it if there's a problem. Plus, they're easier to transport.
They are in form of panels ....panel observe heat to generate electricity

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