Technology readiness level assessment on digital technologies for energy efficiency

Digitalization offers the potential to increase through new/developed technologies that can gather and analyze datasets then use it to improve or change the physical behavior of indoor or outdoor environments either automatically or through human intervention. Technologies are evaluated and compared based on the nine parameters on the TRL. The Technology Readiness Level (TRL) assessment is based on the type and size of the entity developing the technologies. This study presented an approach to measuring TRL on digital technologies related to building energy efficiency. An expert survey assessed the technology readiness level in buildings energy efficiency digital technologies. This paper contributes to the widening and systematizing of knowledge on the maturity and understanding digital technologies related to energy efficiency. This study aims to inform researcher, user, and industry to support energy efficiency technology development focusing on digital technologies.