Geothermal energy involves using the natural heat and stable temperature found deep within the Earth’s crust for heating and cooling all types of buildings. This technology includes boreholes up to 130 meters deep, where a closed-loop system with circulating fluid is created to facilitate heat exchange.
Hristofor Simov, project manager of a geothermal site, shares: “More than 360 boreholes are planned to be drilled at this location, through which geothermal energy will reach the end user. The temperature remains constant thanks to the large loop circulating from the boreholes. The client installs a heat pump that regulates the temperature to the desired levels.”
Each of the eight blocks at the site has its own geothermal field, from which the heat transfer fluid reaches every apartment through risers. Nikola Spasov, CEO of a geothermal company, emphasizes the importance of geothermal energy as a renewable resource and one of the three green energies recognized by the European Union. He adds, “Using this type of energy leads to lower electricity bills and is an environmentally clean solution.”
Although geothermal energy is recognized as an important resource, it is still not widely adopted in Bulgaria. Over the past ten years, there has been some development, but it represents only a small portion of newly constructed buildings. According to Nikola Spasov, the main obstacle to geothermal implementation is the delay in the investment process. Purchasing the necessary equipment can cost around one million two hundred thousand leva.
Currently, the government does not provide funding for geothermal energy, while the European Union already offers various tax incentives for those who choose to take advantage of the Earth's natural temperature.
