US' new power generation system patented, uses energy fluctuations

Researchers from the Southwest Research Institute (SwRI) and 8 Rivers have patented a cost-effective power generation system that leverages fluctuations in energy demand by using liquid oxygen storage (LOX) to enhance power plant efficiency and reduce costs. The system modifies the Allam-Fetvedt Cycle, a power cycle that combusts fuel with an oxygen and carbon dioxide mixture to enable complete carbon capture and minimal greenhouse gas emissions. By generating oxygen during off-peak hours when electricity prices are low, storing it in liquid form, and using it later during peak demand, the system boosts plant output while lowering operating costs. SwRI conducted a techno-economic analysis modeling plant performance and hourly costs over a year, confirming the system’s profitability amid increasing electricity price volatility driven by rising renewable energy penetration. As renewable energy sources like wind and solar increase to 30% or more of the grid, energy storage becomes critical to managing fluctuations. The patented LOX storage offers a large-scale energy storage solution by producing liquid oxygen when