If you have level 3 hacking skills, the Poseidon Energy Plant WV-06 has 8 hackable terminals.
- 2 doors facing south at ground level (Main Entrance, Turbine hall)
- 1 door facing north at ground level (Fuel Storage)
- 1 door on the roof if you take the stairs outside left of the Main Entrance (Roof Access)
Each door has a terminal inside and outside that can both be hacked. Enemies in the area are below level 10 so the only limitation is having hacking level 3