The 55th Earth Day's theme, 'Our Power, Our Planet,' highlights the importance of renewable energy. The National Renewable Energy Laboratory, a vital entity for power systems research under the U.S. Department of Energy, is spearheading advancements in renewable energy technologies to enhance security, reliability, and economic opportunities. In 2023, renewables contributed 22.7% to U.S. electricity production, and this number is expected to rise significantly by 2035. The lab's 2021 budget of $464.3 million prioritized solar, wind, bioenergy, hydrogen, and geothermal research. Over the years, the U.S. energy landscape has shifted from wood to fossil fuels and now to renewable sources like biofuels, geothermal, solar, and wind. States like Iowa, South Dakota, and Kansas are leading the way, with impressive percentages of power coming from renewables. This transition signifies a positive trajectory towards sustainable energy practices, showcasing the nation's commitment to a cleaner and greener future.