Embedded Systems Conf Silicon Valley (ESC SV)
http://escsiliconvalley.com/
Energy Harvesting Society Meeting
http://www.energyharvestingsociety.org
IDTechEx Energy Harvesting
https://www.idtechex.com/events/
International Conference on Advanced Energy Materials and Research
https://energymaterials.materialsconferences.com/
International Conference on Energy Harvesting, Storage and Transfer
https://ehstconference.com
International Conference and Exhibition on Materials Science and Engineering.
https://material-science.materialsconferences.com/
PCIM Europe
https://pcim.mesago.com/events/en.html
Power MEMS
https://powermems2019.org/
PWR SOC: Integrated Power Conversion and Power Management
http://pwrsocevents.com/
Sensors Expo and Conference
https://www.sensorsexpo.com
SENSORCOMM, International Conference on Sensor Technologies and Applications
https://www.iaria.org/conferences/SENSORCOMM.html