The island of Sardinia in Italy is known as a world-renowned tourist destination. It will now be the home of the world''s first carbon-dioxide battery, according to Electrek.
While countries are making progress to reduce their carbon emissions, there is also the need to trap carbon dioxide that is currently being released to ensure that the planet''s temperature rises remain under control.
Many are looking to capture carbon directly from the atmosphere and store it. Despite the fact that Energy Dome intends to utilize the gas for energy storage, the method is extremely flexible and employs off-the-shelf products, according to a press release.
How does the technology work?
The energy storage solution at Energy Dome isn''t that expensive to look at, but the technology that makes it work is quite interesting. Carbon dioxide gas is commonly used as a liquid at room temperatures.
Carbon dioxide at normal temperature and pressure (stored in a massive dome) is then compressed to convert it into its liquid form. This is the charging process, which can be used to store incoming energy from a renewable energy source such as wind or solar.
When power is required, the stored heat is used to heat up liquid carbon dioxide, which turns into a gas which is then pushed through a turbine to generate electricity.
The whole process is a closed-loop system, where no carbon dioxide is released into the atmosphere. What''s even better, the technology does not include any rare-earth elements like lithium or cobalt, but uses only steel and water. It can therefore be implemented anywhere and everywhere.
Rapid scaling possible
Energy Dome began operations in February of 2020, promising to move from concept to megawatt scale testing. It is a result of its extensive knowledge base, including process engineering, and energy, as well as a new industrial process that integrates components efficiently, according to a press release.
The company is confident that its technology will not only be utilized anywhere on the planet, but also at less than half the cost of a lithium-ion battery storage facility with similar capacity. The Sardinia battery is a demonstration that CO2 batteries may be used without significant bottlenecks.
While the press release does not reveal the storage capacity of the recently launched battery, it does not mention that the company is now planning a 20-200 MWh full-scale plant that is expected to be operational by the end of 2023.