Wind and solar energy storage in saline aquifers

Is offshore isothermal compressed air energy storage in saline aquifers co-located with wind power?

Techno-economic analysis of offshore isothermal compressed air energy storage in saline aquifers co-located with wind power Appl Energy, 303 ( 2021), Article 117587, 10.1016/j.apenergy.2021.117587

Can saline aquifers store compressed air offshore?

Mouli-Castillo et al. analyzed the potential of saline aquifers to store compressed air offshore of the United Kingdom for seasonal storage (multiple months) . Saline aquifers or other porous formations are advantageous offshore reservoirs because they are geographically widespread and have a large capacity.

Why is a saline aquifer used for air storage?

When a saline aquifer is used for air storage, the air displaces the brine and creates an air plume. Another advantage of saline aquifers is that the storage duration can be increased without altering the machinery or wellbore, only by injecting more air and increasing the size of the air plume.

Why are saline aquifers advantageous offshore reservoirs?

Saline aquifers or other porous formations are advantageous offshore reservoirs because they are geographically widespread and have a large capacity. There are many regions with overlap between subsurface saline aquifer formations and planned offshore wind farms off the eastern coast of the United States, as shown in Fig. 1 for the Mid-Atlantic.

Can a saline aquifer be used in a diabatic thermodynamic cycle?

Mouli-Castillo et al. explored the use of saline aquifers in combination with a diabatic thermodynamic cycle . When a saline aquifer is used for air storage, the air displaces the brine and creates an air plume.

Can a single-well compressed air energy storage system co-locate with a wind farm?

This study focused on the performance of a single-well compressed air energy storage system based on fixed geophysical parameters. When suitable geophysical conditions are present, offshore compressed air energy storage can provide the opportunity to co-locate energy storage with a wind farm.