Apple, Amazon, and Walmart are Investing in Solar Energy The global market for solar energy is expected to be worth an astronomical $1 trillion by the end of 2028, with increasing adoption of solar by commercial, non-profit, and public entities. Even Fortune 500 companies such as Apple, Amazon, and Walmart are investing in solar to help save money over the long term. So it's little wonder solar is also becoming one of the fastest growing sectors in the U.S. stock market. See How Investors Could Benefit |