Energy Tanks

Chozo Ruins - Transport Access North: After collecting the Missile Launcher, go beyond the Blast Shield door in front of you.

Chozo Ruins - Furnace: This starts from the Energy Core room. Power up all the Morph Ball Switches to exit via the upper door, then roll through the tunnel inside.

Chozo Ruins - Main Plaza: Enter this room via the Vault room to find it on a ledge. You can use Bombs in the Totem Hive room to reach it.

Magmoor Caverns - Transport Tunnel A: This ball course is between the Monitor Station and the transport to Phendrana. Use Spring Ball and Bomb Jumps to get from the right side up to the upper-left where the tank is.

Phendrana Drifts - Ruined Courtyard: Once you've activated the two Spinners in this room, a Morph Ball Slot will activate that you can Bomb to raise the water level. With that water raised, cross the ice floes to the opposite side of the room to find a small ball tunnel that has this tank behind it.

Phendrana Drifts - Research Lab Aether: At the bottom level of this room are several glass tanks. One of the tanks very visibly has an Energy Tank inside it. Bust it open with a Missile.

Chozo Ruins - Hall of the Elders: Of the three colored lights on the back wall, shoot the white light to uncover the Morph Ball Slot behind it. Bomb that slot to rotate the tunnels near the statue, then hop into the statue's hands as a Morph Ball.

Magmoor Caverns - Magmoor Workstation: Access this room via the transport behind the major boss fight in Phendrana Drifts in the Quarantine Cave. Take the transport to Magmoor. Find three power conduits with the Thermal Visor and power them with the Wave Beam. Roll into the bottom area of the room with the Triclopses. Roll through each of the side paths in order, scanning consoles to open the next path. The tank is at the end of the last path.

Tallon Overworld - Cargo Freight Lift to Deck Gamma: At the bottom of this room is the crashed lift. Blast the door with a Missile to get the tank behind it.

Tallon Overworld - Hydro Access Tunnel: In the side-view ball tunnel, there's a tank very high up. You'll have to take advantage of Bomb Jumps.

Phazon Mines - Ventilation Shaft: This is the room with Plated Puffers and poison gas. Near the door to Omega Research, set a Power Bomb to reveal a hole in the floor. Go into the hole and out the other side where there's a console that will reveal the Tank.

Chozo Ruins - Training Chamber: Go up the halfpipe in this room and activate one of the Morph Ball Slots to lower a small elevator that can only fit you as a ball. Ride the Spider Ball Track over to the Tank.

Phendrana Drifts - Transport Access: This is the room connected to the Transport near the Quarantine Cave. Melt an ice wall in this room to reveal the Tank.

Phazon Mines - Processing Center Access: This is in the room just beyond the boss you beat to get the "required" item.