Thermoelectric Harvesting Powers Batteryless IoT Sensor in Motor Test

A 2026 study demonstrated a thermoelectric generator powering a LoRa sensor on a 0.25 kW industrial motor, completing 41 transmissions without a battery. The node harvested 6.17 J and consumed 6.05 J over 9,612 seconds, maintaining a positive energy balance. The approach targets hard-to-reach assets where wiring or battery replacement is impractical.