It won't matter how clean you get your solar panels if the parts responsible ... Too much force will damage the panel, no matter how soft your tools are. Just keep applying the same water ...

If you plan to install solar panels yourself, you'll need some tools that may be obvious ... up any spills or smears keeps ...

A $5 million grant from the National Science Foundation Convergence Accelerator Program will fund a project focused on recycling solar panels and reusing their critical materials.