Thermal Storage #
Heat energy can be stored more cost-effectively than electricity. This section discusses devices that store thermal energy, until the heat can be directly used, or converted to electrical power.
- Heated Water
- Kraftblock
- Other Thermal Storage Materials
- Sand Batteries
- Solar Thermal Batteries
- Using PTC heaters to Store Electricity as Heat
Water is an inexpensive medium for storing heat. Here are innovative approaches to storing heat in water for later use.
Kraftblock is a highly efficient ceramic-like material that stores thermal energy at extremely high temperatures. Learn how Kraftblock can store power as heat until it is needed as electricity again.
Information about materials that can store heat for long periods.
Storing Solar Heat in Sand. During summer months, solar heat can be stored in sand batteries for use during winter.
If only we could 'can heat', right? Perhaps we can. Innovative companies are now storing solar heat using highly innovative techniques.
Looking for a low-cost way to store solar-generated electricity as heat? Consider using PTC heaters to transfer energy from solar PV panels into brick, sand, or other thermal storage materials. PTC stands for Positive Temperature Coefficient. PTC heaters are made from ceramic materials. Compared to traditional elements that use wires or coils to generate heat, PTC heaters are safer and more energy efficient. Stored thermal energy can heat a home, greenhouse, or household water without the need to store electricity in expensive batteries.