The Biden administration's efforts to promote clean energy are exemplified by the Defense Department's plan to install solar panels on the Pentagon. This initiative, part of a broader strategy to reestablish the federal government as a leader in sustainability, involves $104 million in Energy Department grants for solar panel installations across 31 government sites. The focus on solar power aligns with President Biden's push for renewable energy in federal buildings, marking a significant step towards reducing greenhouse gas emissions and promoting sustainable practices in government facilities.