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Ancillary Services

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.

How ARES Performs Ancillary Services

Ancillary Serivces Facility from Advanced-RES on Vimeo.

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.

The components of an ARES Energy Storage System may also 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.
"We believe that ARES is an integral part of state and national energy policy, not only in the US, but around the globe, because increasingly, we believe that nations will make a renewed commitment to very high levels of renewable power. ARES gives us a tool that system planners and engineers can put in their tool kit to enable those high levels of renewables while maintaining the reliability and safety of the grid."
James Kelly
ARES