Heliostorage - Model STES - Seasonal Thermal Energy Storage

The process starts in the spring, with the sun warming solar collectors. This warmth is used to supply hot water and heat to the building. Should additional heat be required, warm water is supplied to the heat pump, ensuring it operates at peak efficiency. Any surplus heat generated in spring begins the charging phase for the Borehole Thermal Energy Storage (BTES).

As summer arrives, the focus shifts to increasing the BTES’s charge, directing heat to the building only when necessary. With the onset of cooler autumn weather, the system starts its discharge cycle. The stored heat is either used directly for heating or fed to the heat pump as needed.

Seasonal thermal energy storage can also harness alternative heat sources, such as industrial waste heat, energy production by-products, or surplus district heating. These sources, often discarded due to lack of storage options, become valuable, offering a cost-effective alternative to traditional oil and gas heating. When an extra source of heat is available, the system’s intelligent controller ensures it’s used in the most efficient manner possible.

• Our seasonal thermal energy storage can store heat from a wide variety of sources, making it a versatile component in sustainable thermal energy management. We can efficiently store heat captured from solar thermal collectors, regardless of the brand of solar thermal collector used.
• Excess heat from district heating networks is another great source of thermal energy as district heating networks tend to have an excess during the summer and a deficit during winter. We can solve this demand-timing issue by saving the summer excess to meet the winter deficit.
• Moreover, we can store waste heat from industrial processes and data centers, transforming what is typically an overlooked byproduct into a valuable resource. Additionally, we can harness and store ambient heat within buildings in order to provide cooling, effectively recycling the energy from air conditioning systems for heating purposes. This capability to store diverse types of heat supports a broad spectrum of decarbonization efforts and energy efficiency strategies.