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Solar panels — types, brands and efficiency

1 discussion · answered by India's solar community

Panel choice is where most quotes differ. This topic covers technologies (mono PERC, TOPCon, HJT, bifacial), real-world efficiency and degradation, which brands are on the ALMM list the subsidy requires, and how to read a warranty.

Ask with the quote in hand — wattage, brand, price per watt and your city — and you will get answers from people who have compared the same ones.

Questions this topic answers

  • TOPCon or mono PERC for a home roof in 2026?
  • How much do panels degrade per year, really?
  • Is this brand ALMM-listed, and does that matter for the subsidy?

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Solar Panels: Types, Brands & Efficiency | Solarcom