SMA WB 3000-21 - Manual (Page 20)

6 Glossary SMA Solar Technology AG
20 WB3-5TL-21-BA-en-10 User Manual
6 Glossary
Bluetooth
Bluetooth is a radio technology that allows the inverter and other communication products to
communicate with each other. For Bluetooth communication, the Bluetooth devices do not need to be
within sight of each other.
Energy
Energy is the power that a system can supply or consume within a certain time unit. Energy is
measured in Wh (watt hours). If, for instance, your inverter feeds in for half an hour at 3,000 W and
half an hour at 2,000 W, it will have fed a total of 2,500 Wh into the electricity grid.
Power
Power is the product of voltage and electrical current strength. Power is measured in W (watts).
The power shown in the display is an instantaneous value. It indicates the power that your inverter is
currently feeding into the electricity grid.