Electricity supply generated using sustainable sources is necessary for future needs to prevent the increase in global temperature and the issue of fossil fuel supplies that are decreasing. There are some efforts being done such as nuclear fusion using temperatures like the surface of the sun. But architecture firm Skidmore, Owings & Merrill (SOM) is working with Energy Vault Holdings to build a 1km-tall tower that can generate a sustainable power supply.
Evu towers with heights between 300-1000 meters will have weights that are raised to the top floor when electricity consumption is low. When electricity is needed, this weight will be lowered and move the electric generator. Electricity is generated entirely using kinetic energy. Each Evu tower can store up to several GWh of electricity sufficient for the needs of the tower and surrounding buildings.
At this point the building with the gravity energy storage system (GESS) is still just a concept. But SOM has experience building super-tall towers through their involvement in the design of the Burj Khalifa.