Environmental awareness combined with high energy costs has led to the creation of new solutions in recent years. This is the case for geothermal homes, structures that can be disconnected from electricity and gas networks. Geothermal energy is a renewable, clean and free energy obtained from the earth’s crust. and keeps spaces at a comfortable and constant temperature between 19 and 21 degrees throughout the year. Its installation makes it possible to forego fossil fuels, which means savings in emissions for the planet and the pockets of its inhabitants. This model can be complemented with solar panels to achieve total energy independence.
As with solar energy, there is an additional cost to develop a geothermal installation. According to Energanova Renovables, a company that specializes in such installations, The installation of geothermal energy for a single family house of 200 square meters in Madrid costs 25,000 euros., about 125 euros per square meter. If you want to include underfloor heating and cooling, you need to add another 40 to 50 euros per square meter. The final price depends on the size of the house. The bigger it is, the more power it needs and also the deeper it goes into the earth’s crust.
According to the Rastreator comparator, data from Red Eléctrica Española, a four-member house pays no less than 135 euros per month for consumables, which means more than 1,620 euros per year. With this conservative figure, A family that installs geothermal power in their home needs about 15 years to pay for it.. With the increase in electricity and gas prices, the amortization times of geothermal energy are shortening. Parallel to the economic part, no harmful emissions are made to the atmosphere during the use of this energy.
Geosolar and without plug
Grupo Index is one of the companies specializing in the promotion and construction of geothermal houses. since its establishment Delivered more than 1,750 homes in 50 single-family developments. Community of Madrid. He currently has 9 jobs in progress in Boadilla del Monte, Las Rozas, Arroyomolinos, Villaviciosa de Odón or Colmenar Viejo. The developer develops geosolar and freestanding homes. “We make energy producers, not consumer homes,” says Teresa Serrano, spokesperson for the company. The company has two types of houses: geosolar, which is connected to the current when there is not much energy, and without sockets, which are completely self-sufficient.
Currently Grupo Index has a project of 26 freestanding houses located in the town of Cubas de la Sagra, Madrid. Inside landing page New study promises “real savings out of pocket” because ” Put an end to all electricity bills (electricity, hot water, air conditioning…) and energy bills (gas, heating, diesel and petrol) forever”. In the case of geo-solar power plants, the monthly cost for a single-family house is between 25 and 35 euros, according to invoices provided by Index to EL PERIÓDICO DE ESPAÑA.
Differences between geometry and aerothermic
Another system that has become widespread in Spain in recent years is aerothermal energy. Geothermal uses subsoil to stabilize temperatures, while aerothermal uses air. Industry sources referenced by this newspaper, the temperature achieved by air has the advantage of being cheaper to install, although its performance is lower., especially depending on the region. The market is split evenly between these two formulas, according to Energanova, which has already launched 800 geothermal and 400 aerothermal installations. “You had to convince people before, now they are convinced,” they say.
“Aerothermal and geothermal systems are very efficient and respectful of the environment. Although aerothermal heat pump technology is becoming more and more efficient, draws energy from a more unstable source, such as air, resulting in a loss of performance at low temperatureshowever, geothermal is more energy efficient as it draws energy from a more thermally stable source such as the earth. This difference in performance between the two technologies will be more pronounced when the outside temperature is lower in winter,” said Enertres, a company specializing in renewable energies, in a report.