Our building had two types of power source, one is normal power, one is essential power (back up by genset) and also supply two kind of power for lighting system. Each multi occupant space (library, pantry, clinic, restroom, mother room, gym, corridor, lobby, conference rooms) has two on/off switches, one control for normal light and the other for essential light (same fixture but different power source). I want to know is it considered to comply with credit's requirement.