Researchers at Arizona State University have discovered a method of incorporating an electrical battery backup into a TES-HVAC system, creating heating or cooling capabilities when standard energy sources are unavailable. This technology does not require a large and expensive capacity of electrical energy storage. It uses only about 10% of already existing thermal energy storage. This low-capacity battery system, which is combined with a thermal energy storage system, has a much lower capital and operating cost using current technology than alternative systems (e.g., a battery backup system capable of directly operating the HVAC systems compressor or heating element).
- New Residential Developments
- Construction Industry
- Retrofit existing residential buildings for improved energy efficiency
- Off-grid applications where reliable HVAC/refrigeration is required
- Operation of building HVAC systems where electrical power is unreliable
- Building energy management
- Smart Power Grids
- Electrical power load management
Benefits and Advantages
- Lower Costs - Lower capital and operating costs using current technology.
- Adaptable – Precise system proportions and electrical power requirements can be tailored to each specific building/application.
- Off-Grid/Micro-Grid Use – Allows operation of the HVAC system without the availability of the primary energy source (grid) or an expensive full-size battery backup system.
- Portability – Battery backup system size is reduced by a factor of roughly ten.
- Efficiency – Expensive electrical storage replaced by low-cost thermal energy storage.
For more information about the inventor(s) and their research, please see