The Las Americas Energy Security Act seeks to establish a sovereign lending program for eligible Latin American and Caribbean partner countries, reaffirming the United States' commitment to sustainable and equitable growth and energy security in the Western Hemisphere. Congress finds that energy independence is critical for sovereignty and economic growth, especially given global energy crises, climate change impacts, and the need to reduce greenhouse gas emissions. The policy aims to advance U.S. foreign policy by helping the region meet short-term energy needs and promote energy security through diversified, clean energy sources. The Secretary of the Treasury, with State Department concurrence, will establish this program within 30 days of enactment. It will support short-term energy needs, fund projects for transitioning to renewable or clean energy , and provide technical assistance for a continuous pipeline of clean energy projects. The program also aims to provide capital for U.S. companies to invest in renewable energy and finance battery solutions for reliable electricity. To receive a loan, countries must submit applications detailing project viability, carbon impact, job creation, and environmental effects, with a strict prohibition against using funds to purchase commodities from or support entities linked to the governments of China, Russia, or other foreign adversaries. Loan conditions include zero-interest loans for up to 30 years or low-interest concessional loans for up to 50 years, without requiring austerity measures. Preference will be given to countries demonstrating democratic values, respect for human rights, and economic freedom, such as members of the Alliance for Development in Democracy and CARICOM. Beyond the lending program, the bill mandates the Secretary of State and other federal agencies to prioritize and expedite efforts to support the energy security of these partner countries. This includes providing diplomatic support for international negotiations and regulatory enhancements, as well as project support for energy infrastructure that improves electricity transmission, advances renewable energy, and enhances energy access for marginalized communities. The President is required to submit annual progress reports for seven years, and the Secretary of the Treasury must conduct annual audits of the program. The bill authorizes an appropriation of $100,000,000 annually for fiscal years 2026 through 2031 to carry out the program.