What companies (US or Worldwide) work on developing solar technology?

I am looking for a company in arizona that knows how to build energy independent homes. I want to build a home that uses a combination of Solar, wind, and natural gas. With strategically placed skylites etc, and windows. Are there anyone who specializes in homes of this nature.

include laws, process, contractors, suppliers, contacts etc

Solar energy is the internet 20 years ago.The only problem is we have so many companies.I see green is the next internet. Also does anyone know of a company that has a price advantage?