ARES has developed and filed both domestic and international patent protection on a method of utility-scale energy storage that is more effectively deployable than competing grid-scale energy storage technologies to date. ARES is a gravity based potential energy storage technology which leverages the high efficiencies of rail transport to provide a significant improvement in performance characteristics, efficiency and cost relative to other large-scale energy storage technologies.
ARES facilities may be configured to three primary storage functions:
- Smaller ARES facility in the power range of 20-50MW can provide Ancillary Services only. This type of facility is called an Ancillary Service Facility.
- Intermediate Scale ARES facilities ranging from 50-200MW can provide Ancillary Services and short duration (2 hours capacity) storage necessary for Renewables Integration.
- Grid Scale ARES Energy Storage Facilities range in power from 200MW Transmission Storage Systems up to 3GW Regional Energy Storage Hubs. Energy capacity may range from 4 to 16 hours duration at full power output.
Uniquely, ARES facilities may provide fast response high efficiency (86%) Regulation Energy Management without the need to be actively charging or discharging their primary mass storage fields.
ARES technology has been thoroughly reviewed by experts in the field of heavy haul rail engineering, locomotive design, electrical engineering, power transmission and distribution, environmental and regulatory affairs, as well as experts in the field of energy storage economics.
ARES facilities do not require the use of water. There are many locations across the US and around the world where ARES technology can be deployed with minimal environmental implications. ARES locations are highly coincident with regions of wind and solar energy resources.
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.