Principal Solar Institute Announces New Module Rating System

With solar power becoming a more attractive option, the Principal Solar Institute has announced the PSI PV Module Rating by which different types of solar power units from different manufacturers can be meaningfully compared.

The new system, the PSI PV Module Rating, allows more objective comparison between differing kinds of photovoltaic units.

This new system will provide additional information for consumers beyond the data provided by manufacturers.

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Industry’s Solar PV Module Rating System

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