The idea is simple but genius: aquifers maintain a stable temperature year-round, making them perfect for aquifer thermal energy storage (ATES) systems. In summer, excess heat is pumped underground; in winter, that stored warmth is drawn back up to heat buildings. . By leveraging their unique thermal properties, engineers are designing systems that use aquifers not only to store water but to regulate temperatures in the built environment, offering heating in winter and cooling in the summer, as shown in Figure 2. ATES is essentially unheard. . Aquifer Thermal Energy Storage (ATES) uses natural underground water reservoirs, known as aquifers, as a medium to store heat or cold for extended periods. As renewable energy sources like solar and wind gain traction, storing excess energy has become the holy grail of sustainability.
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