The Pacific POWER Act directs the U.S. State Department, working with the Department of Energy and other federal agencies, to promote geothermal energy development among American allies and partners, particularly in the Indo-Pacific region, as part of a broader strategy to counter China's influence and strengthen energy security. The bill establishes an International Geothermal Program requiring the Secretary of State to assess global geothermal potential, identify countries where development would benefit U.S. interests, and select at least five geothermal partner countries within a year of enactment, including at least three in the Indo-Pacific such as Taiwan, the Philippines, Japan, Australia, Indonesia, India, New Zealand, and others. The program would support technical assistance, research partnerships, financing tools, workforce development, and export opportunities for U.S. geothermal companies, while pursuing formal agreements with partner nations. It also creates an advisory mechanism to involve private industry and nonprofits, and requires regular reporting to Congress on progress, spending, and personnel involved in the effort. The bill authorizes necessary funding for fiscal years 2027 through 2031 and reflects congressional concern over energy vulnerabilities among Pacific allies, especially Taiwan's heavy reliance on energy imports amid potential security threats from China.