i want to do some Power Consumption Calculations (and Simulations) for an exemplary LoRa-Node.
In consultation with my University we have chosen this one:
A lot of TTN nodes would be based on the SX1276, you will find the current consumption figures at various power levels it its data sheet.
As for power consumption when the device is not sending the sensor data, that depends on how the node is built and with what, it could have a current consumption as low as 1-2uA or 50mA+.