The Department of Energy (DOE) is a United States government agency responsible for formulating policies related to energy and nuclear safety. Established in 1977, its mission includes promoting energy conservation, advancing energy technology, and ensuring the safety and security of the nation's nuclear arsenal. The DOE plays a crucial role in addressing the challenges of energy production and consumption, focusing on sustainable practices and the development of renewable energy sources. Through various programs and initiatives, the department aims to enhance energy efficiency and reduce greenhouse gas emissions, contributing to a cleaner environment and a more sustainable future.