When the McLennen-Forster building releases the EMP all the lights in the building supposedly go out. However, when Paul Raines is seen exiting the building, a green light can be seen on one of the walls.
While the EMP is loading there are noticeable disturbances in the area. However, when Jack enters the control room for the EMP with the machine just next door and almost ready to blow up you can see the technician's computer monitor showing a crystal clear and flawless picture.