ELI5: Explain Like I'm 5

Load bank

A load bank is a device used to test other electrical equipment, like generators and air conditioning systems, to make sure they are operating correctly. It works by adding extra electrical load (power) to the system. This extra load helps simulate the conditions the system is expected to work in and make sure it is performing as expected. This can help find and fix any potential problems before they become more serious and lead to bigger issues.