Innovative long term utility energy storage device
It is low cost to build and maintain.
It is not geographically dependant.
It only requires a very small footprint.
Unlike batteries it has unlimited cycle life.
It delivers a highly scalable storage capacity, so ideal for very long term storage.
It has very few moving parts, leading to far less maintenance and increased reliability.
It could incorporate the use of bulk stored liquid air.
It has a very long expected life of 100 years plus.
Finally what could be more environmentally friendly than clean air and fresh water.