Is there a list of companies that produce Photovoltaics and Inverters and/or BOS that are publicly traded? Is there, Are there mutual fund(s)?
With the present shortage of high wattage PV there has to be a way to invest in these companies other than by buying the products?
For instance, is Sunwize a public company?

The only one I know of is Evergreen Solar , ticker ESLR

All the others are part of a much larger company ...

Generally speaking , investing in these companys which only do RE (think astro power or advance energy) can be a bigger money sink that buying the actual products they produce