Innovations in Heat and Cold Storage (ATES)

For over 25 years, Certhon has been delivering Heat and Cold Storage (ATES) systems, supported by a team of experts who transform this extensive experience into tailored, optimal solutions. The application of ground-based thermal energy storage combined with heat pumps is experiencing significant growth. It provides a substantial reduction in CO2 emissions and lowers heating and cooling costs through more efficient energy use. In the quest for greener and smarter solutions for heating and cooling greenhouses, ATES has proven to be a groundbreaking technology. While the basic principles of ATES are well-established, we continually develop new innovations and approaches to enhance the efficiency and effectiveness of this sustainable energy system. 

Deeper drilling for improved performance
Traditional ATES systems utilize relatively shallow ground sources. However, one innovation involves the use of deeper drilling. These deeper sources can access greater temperature differentials within the soil, resulting in more efficient heat transfer. By integrating heat pump technology with deep ATES, greenhouses can be heated and cooled with even less environmental impact.

Thermal energy distribution
Another development is the integration of thermal energy distribution. Instead of direct heat exchange between the ATES system and the greenhouse, thermal energy is stored in an intermediate buffer. This enables heat and cold to be drawn from the buffer on demand, better accommodating peak loads and improving the efficiency of the ATES system.

Seasonal storage and flexibility
Innovative ATES systems also focus on seasonal storage of heat and cold. For example, excess heat generated during summer can be stored for use in winter. This approach enhances the flexibility of ATES systems and reduces the risk of soil overheating or overcooling. As a result, greenhouses can maintain stable temperatures year-round.

Intelligent control systems
With the Certhon Computer System (CCS) and intelligent control systems, real-time sensor data can be monitored. This data is then used to optimize ATES system operations. Adjustments include adapting to weather forecasts, optimizing the greenhouse’s heating and cooling demands, and even aligning with electricity prices to save costs.