throughout the sessions and in the exhibit hall, other linkages...

throughout the sessions and in the exhibit hall, other linkages were evident: supercapacitors hold the potential to create highly efficient ways to store and release harvested energy, and 3-D printing plays a big role in creating prototypes and short-run custom production items.

According to IDTechEx’s analysts, the energy-harvesting industry is projected to grow to US $2.6 billion by 2024. The harvesting show was built around three main sources of energy and the technology used to tap them: mechanical energy, heat, and electro magnetic emissions.

Perhaps the most magical method of energy harvesting is drawing on ambient electromagnetic emissions. This isn’t a new idea: Crystal radios were pretty popular once upon a time, and RFID tags and photovoltaic cells are pretty popular today. The concept can be taken further, however. It is possible to pull energy from the various radio frequencies that wash over us all the time. The Spanish textile research association Aitex, in collaboration with other researchers, has created cloth that contains tiny antennas woven directly into the fabric. This technology could be developed so that our clothing could capture enough energy to power biometric sensors and other wearable devices.

https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7065409

Logic would dictate the supercaps to accompany the energy harvester market would be the same dollar value ,wouldn't it ?  

Raider