This list ranks the top 10 players shaping Japan's photovoltaic industry in 2025, evaluated based on market share, technological innovation, project scale, and influence within the Japanese market. Grace Solar Topping our list is Grace Solar, a global leader in smart solar mounting. Japan Renewable Energy Corporation is actively involved in the solar power generation business, encompassing various development processes such as planning, design, and construction. We take pride in Sharp's solar power systems, built to our strict quality standards and policies, to provide long-term durability and the confidence that comes with “Japan Quality. It excels in offshore wind and advanced solar technology. JERA is a major player in clean energy.