What are the top geothermal power generation operator companies in Europe that develop, own, and manage geothermal energy plants for electricity and heat production? Which companies have the strongest presence in Europe’s geothermal energy sector and operate large-scale geothermal projects across different countries? How are these geothermal operators contributing to renewable energy generation, carbon reduction, and sustainable heating solutions in Europe? Which companies are considered industry leaders based on installed capacity, technological innovation, and operational performance in geothermal power generation?