Buoyancy energy storage patent

What is a buoyancy storage system?

The niche for the operation of the system is to store energy in weekly cycles in synchrony with a battery system storing energy in daily cycles, or to compress hydrogen in an efficient way. The design of the buoyancy storage recipient must consider the high underwater pressures.

How much does a buoyancy energy storage system cost?

The ocean has large depths where potential energy can be stored in gravitational based energy storage systems. The deeper the system, the greater the amount of stored energy. The cost of Buoyancy Energy Storage Technology (BEST) is estimated to vary from 50 to 100 USD/kWh of stored electric energy and 4,000 to 8,000 USD/kW of installed capacity.

Can buoyancy energy storage technology (best) fill the energy gap?

There is currently no viable technology in the market that offers affordable weekly energy storage in the ocean, coastal areas, or islands without mountains. This paper argues that this gap can be filled with Buoyancy Energy Storage Technology (BEST).

What is buoyancy battery energy storage?

Experimental analysis of system discharge force is presented with measurements for both submersed depth and charge duration. This paper presents an alternate method of underwater energy storage utilizing an object's inherent buoyancy as a means for storage known as buoyancy battery energy storage (BBES).

How does a buoyancy system work?

This system stores energy by consuming electricity in a motor that pulls the buoyancy recipient to the deep sea. It then generates electricity by slowly raising the buoyancy recipient supported by the generator. The rising and lowering speed must be low because of the losses due to friction, which are high under water.

What is the impact of a buoyancy recipient?

The impact of the buoyancy recipient is small due to its low ascending and descending speeds. The cables, however, have a larger speed due to the pulley system, and animals that rest on the cable might suffer from rapid changes in depth or end up being crushed by the pulley system.