Romanian company Green Tech International has announced the launch of a geothermal district heating project in the northern part of the capital, Bucharest, with an investment of €200 million. This geothermal project aims to modernize and decarbonize the Bucharest District Heating System (SACET), with an annual thermal energy output exceeding 595 GWh, equivalent to a capacity of approximately 70 MW.
In its preliminary 2025 financial report, Green Tech International disclosed that the new geothermal system will connect to existing geothermal wells in the northern part of the capital and is expected to reduce CO₂ emissions by 127,000 tons annually. Over the project's assessment period, it could avoid more than 1.9 million tons of CO₂ emissions, helping to reduce dependence on natural gas and lower thermal energy production costs.
The company's report states: "The benefits are direct and structural: reducing dependence on natural gas and exposure to CO₂ certificate price volatility, lowering thermal energy production costs, and ensuring long-term price stability for consumers. Furthermore, using already drilled and tested local resources significantly reduces development risks and accelerates implementation."
Green Tech International has applied for support through the EU Modernization Fund. The company is listed on the Bucharest Stock Exchange and possesses 42 geothermal wells with a heating production capacity of 300 MW. In 2024, the company's annual operating turnover increased by 8% to 10.8 million Romanian Lei (approximately €2.1 million), with total operating revenue reaching 13.7 million Romanian Lei.
In addition to the Bucharest geothermal project, Green Tech International's subsidiary, Horti Green Invest, has obtained environmental approval in Lovrin, Timiș County, to build a 19-hectare hydroponic geothermal greenhouse complex. This geothermal greenhouse project plans to utilize nine geothermal wells for sustainable heating and power generation through a cogeneration system.
The company is also advancing a nine-hectare greenhouse modernization project in Ciocaia, Bihor County, which will similarly use geothermal and hydroponic systems for tomato cultivation. These initiatives demonstrate Green Tech International's expansion of geothermal energy applications across multiple locations in Romania to promote sustainable district heating and agricultural development.
