Japan’s energy sector is undergoing significant changes as the country moves toward decarbonization and renewable energy. With the government’s goal of achieving net-zero carbon emissions by 2050, energy companies that focus on renewable energy and sustainability are expected to thrive. Tokyo Electric Power Company (TEPCO), ENEOS Holdings, and Iberdrola Renovables Japan are key players in this transition. TEPCO, the largest utility provider in Japan, is investing heavily in renewable energy projects, including solar and wind. ENEOS, traditionally an oil and gas company, is also transitioning into renewable energy and hydrogen production. Iberdrola Renovables, a subsidiary of Spain’s Iberdrola, is focused on offshore wind energy projects in Japan. As the demand for clean energy grows, these companies are likely to see increased investment, particularly from ESG-conscious investors looking for long-term sustainable returns in Japan’s energy sector.