At NextEra Energy, we believe that this is America's Energy Era -- an unprecedented opportunity in our nation's history to invest in clean energy. The costs of wind, solar and battery storage technology continue to decline rapidly. U.S. reserves of clean natural gas are sufficient to power our economy for about 90 years. Smart grid technologies are helping electric companies lower costs for customers while improving reliability during good weather and after major storms.
America's Energy Era becomes more sustainable as we invest in clean energy technologies.
NextEra Energy has invested more than $85 billion of capital in the U.S. economy since 2004 and was among the largest U.S. capital investors in any industry in 2017. We are now the largest generator of wind and solar energy in the world -- by 46 percent. We lead America's small but growing energy storage industry. Our capital investments at Florida Power & Light Company (FPL) have allowed us to deliver reliability that is 50 percent better than the national average while keeping typical residential customer bills nearly 30 percent lower than the national average.
NextEra Energy has been recognized often for our commitment to clean energy investment and innovation. In 2018, we were ranked No. 21 among the top 57 companies globally that "Change the World" by Fortune, an honor given to companies that have positive social impact through activities that are part of their core business strategy. Our investments in renewable energy and leading-edge innovative technologies are not only core to our business, but also make us a sustainable company and help deliver the benefits of America's Energy Era to a broad group of stakeholders. We are committed to respecting our environment, providing value for our customers, sustaining our communities, investing in our team and growing shareholder value:
Through investment and innovation, NextEra Energy helps make our country and our world more sustainable and more successful. Our team works hard to advance that vision every day. We salute every person, company, school, supplier, government agency and charitable organization that has a similar passion for sustainability, and we appreciate the opportunity to help more people realize the full promise of America's Energy Era.
Chairman & Chief Executive Officer