Geoexchange One Lake Club
The smart and sustainable geothermal solution for heating and cooling urban buildings, with reduced emissions and optimized costs.
A sustainable alternative to classic heating systems
GeoExchange is a modern system that uses the energy stored in the ground to provide space heating and cooling, as well as hot water. The technology uses high-efficiency ground-to-water heat pumps and helps reduce energy consumption, carbon emissions and long-term costs.
The solution is already implemented in landmark residential projects such as One High District, One Lake District, One Lake Club and supports the achievement of nZEB (nearly zero energy) standards.
What are the benefits?
- Optimized operational costs, by up to 50%;
- Continuity of supply and price stability;
- Predictable management and transparency of energy consumption;
- Comfortable indoor climate all year round, without pollution or noise;
- Reduced operating and maintenance costs;
- Reduction of CO₂ emissions by up to 90%.
How much do you save with the GeoExchange solution?
With GeoExchange, heating, cooling and hot water costs are lower from the start, and savings grow steadily over time. In the first years, expenses are up to 32% lower compared to traditional solutions, and after the initial investment is amortized, savings can reach up to 50%.
The system offers predictability and long-term control, making it a smart choice both economically and environmentally.
| Calculation assumptions One Lake Club | Simple calculation | +CO₂ tax ** | +20% gas *** | |
|---|---|---|---|---|
| A | Estimated average consumption/apartment MWh/year/110.50 m² * | 27.18 | 27.18 | 27.18 |
| B | Supply service fee (lei/year) B = 110.50 m² × 2.76 lei/m²/month × 12 months | 3,659.76 | 3,659.76 | 3,659.76 |
| C | GeoExchange consumption rate (lei/MWh) | 344.65 | 362.08 | 376.33 |
| D | Total GeoExchange cost (lei/year) **** D = A × C + B | 13,027.35 | 13,501.09 | 13,888.41 |
| E | Consumption tariff for the classic solution (lei/MWh) | 598.26 | 681.04 | 754.29 |
| F | Total cost of the classic solution (lei/year) F = A × E | 16,260.71 | 18,510.67 | 20,501.60 |
| G | GeoExchange savings vs. the classic solution (year 1 - 11) G = (1 - D/F)% | 20% | 27% | 32% |
| H | GeoExchange savings vs. the classic solution (year 12 - 30) H = (1 - A x C/F)% | 42% | 47% | 50% |
** Calculation with CO₂ tax applicable from 2027
*** Calculation with CO₂ tax and estimated 20% increase in natural gas price
**** To these costs, 1.60 lei/month/m² of maintenance and operating costs are added, resulting in a cost of approx. 2,121.60 lei/year.
What are the costs of the GeoExchange solution?
The system has a transparent pricing structure, divided into two stages: an initial period with a fixed rate plus consumption cost, followed by a second stage in which only the cost of consumption will be paid. Thus, costs are predictable and sustainable in the long term.
The supply fee of approx. 2.76 RON/m²/month per beneficiary represents the supply services, intellectual property, co-investment and total guarantee on the thermal energy production facilities.
Consumption cost represents a calculation of consumption at the individual level (per beneficiary) and the share of consumption with common spaces based on the undivided share.
