The components of an ARES Energy Storage System may be deployed to create a robust Ancillary Services system which functions as a LESR (Limited Energy Storage Resource). These high-power short-duration energy storage systems are designed to provide grid-scale Regulation-Up, Regulation-Down, Spinning Reserves, VAR Support and Grid Inertia. The ARES Fast Response Ancillary Service technology bridges the power gap between large scale battery and flywheel installations and far larger pumped-storage hydro – at a lower life-cycle cost than batteries, a higher energy-to-power ratio than flywheels and a greater efficiency and far faster ramp-rate than pumped-storage hydro.
The ARES Ancillary Service facilities typically utilizes a single uphill track with a central queue of loaded shuttle-trains that travel up and down grade in response to an ISO (Independent System Operator) command to provide Reg-UP or Reg-Down frequency adjustment. In addition to its high charge / discharge efficiency of 80% they have an extremely fast ramp-rate on the order of seconds to ramp to full power.
ARES rail based energy storage systems are covered by one or more of the following US patents: 8593012, 8674541 with foreign patents pending and issued.
“ARES gives us a tool that system planners and engineers can put into their tool kits to enable…high levels of renewables while maintaining the reliability and safety of the grid.”Jim Kelly, CEO