jay wrote:
I thought your first post was funny. No appology needed.
I checked out the site before my post and I still had to ask.
So why sink a container and flood it with water? To spin a turbine
with the high pressure water pouring in....trouble is, how to get that
sunken wreck back up without using more energy than you produce???

Inmpossible, yeah? Boyle's Law and all the heat loss during the
pressurizing Mumbo Jumbo

So, how are you going to pressurize the air being forced out of the
barrels so they can sink? It takes energy, also heats the air,
remember the gas laws. With no input of energy, it will sink (maybe)
but will not rise again. Forcing the water out also takes energy...