Imagine using the earth as a giant battery that stores both heat and pressure. This system uses CO2 as a fluid to move energy underground and pull it back up when needed. It's like a thermal thermos buried in the ground that can also trap carbon emissions permanently.
Renewable energy is intermittent and difficult to store at a massive scale. Additionally, many industries struggle to decarbonize their heating and cooling processes while managing CO2 emissions.
A techno-economic feasibility proof and a tool to classify candidate reservoirs (porous media and saline cavities). The project developed numerical models for reservoir behavior and surface plant design.
If you are a grid operator dealing with the instability of wind and solar power — this project developed a scalable energy storage system that integrates with the grid to balance supply and demand. It provides a way to store massive amounts of energy underground for later use.
If you are a factory owner dealing with high carbon emissions and heating costs — this project developed a trigeneration system that captures CO2 and converts it into electricity, heat, and cold. This allows for partial carbon sequestration directly at the source.
If you are a city utility dealing with the need for sustainable urban heating — this project developed a system that extracts geothermal heat using CO2. This provides a low-environmental-impact source of heat and cold for entire districts.
Based on available project data, the project aims for a cost-effective design, but specific price points or CAPEX/OPEX figures are not provided in the summary.
Yes, the project specifically targets scalable energy storage from small to large-scale, utilizing underground porous media and salt cavities to achieve high capacity.
Based on available project data, the project includes a dedicated work package (WP7) for the dissemination and exploitation of results, though specific licensing terms are not listed.
The system is designed to integrate with the electrical grid, industrial plants, and district heating and cooling networks using a transcritical CO2 cycle.
The project runs from 2022-11-01 to 2025-10-31, focusing on moving the technology from TRL 2 to TRL 4.
The consortium is highly diverse with 31 partners across 20 countries, showing a strong international reach. While it is heavily weighted toward research and 'other' entities (21 partners), it includes 2 industrial partners and 3 SMEs, indicating a transition from academic research toward industrial application. The leadership by Universidad de Sevilla suggests a strong academic foundation for this high-risk technology.
Contact Universidad de Sevilla regarding the CEEGS project exploitation
Contact us to explore licensing opportunities for CO2-based energy storage.
