Glad you liked it! The atmosphere, audio logs, and writing in general was certainly one of the biggest aspects of this game for me. As I really wanted to get across that this is a real living world, which has things happening outside of your involvement.
SPOILERY HINT:
To complete the backup generator objective you need the Flare Gun, Flare Gun Ammo, and Fuel. All of which can be found in the storage room. (The room with the sparking keypad) You then need to clear the goop from in front of the backup generator door found in the reactor room, to do this you need to fire a flare through the crack in the window. After that, enter the room and interact with the backup generator.
This is probably one of the least well communicated objectives.