The new system, which the team purports could be more efficient than existing power-generating systems, is based off of a thermodynamics process described through a closed-loop Brayton cycle ...

Though infrequently used, simple cycle (Brayton) peakers operate on standby and provide vital backup power supporting grid reliability. They offer operational flexibility with fast ramp capabilities.

The illustration shows a recompression closed Brayton cycle with arrows indicating the flow of supercritical carbon-dioxide (S- CO2). Starting at the lower left corner, S-CO2 is heated and sent ...

The technology modeled by the UK group is based on the so-called Brayton cycle and involves the use of reversible heat-pump and heat-engine cycles to store electricity in the form of thermal energy.

Recompression closed Brayton cycle schematic diagram. Source: DOE According to the DOE, no commercially feasible sCO 2 facility exists for high temperature and high-efficiency system testing ...