15-02-2009, 12:42 PM
The VRB-ESS is a device that is capable of storing
energy in multi megawatt ranges for durations that range from hours to
days, from any available input source such as Grid, Renewable resources
or even from a diesel generator. The stored energy can then be provided
back into the Grid or supplied to a load as required & directed. It
is uniquely capable of being charged as quickly as it was discharged.
This seminar presents the various features & applications of the
VRB and discusses its future in the coming years.The
vanadium redox flow battery system has undergone optimization and the
manufacture of various components have been streamlined and designed to
meet the needs for full scale commercial production. With high energy
efficiencies of over 80% and a cycle life of greater than 16,000
cycles, the Vanadium Redox Flow Battery that was pioneered at the
University of New South Wales has been shown to be superior to any
other battery system currently available.Commercial
installations have already been completed in several parts of the world
for a range of stationary applications and full-scale manufacture has
begun in Japan.A new 250 kW/2 MWh VRB installation for the USA has been
recently installed by Pinnacle. The installation, which is modular and
relocatable in design, will be used by PacifiCorp to supply peak power
capacity (charging in the off-peak hours) and provide end of line
voltage support (supplying up to 250 kVAR of reactive power) in a
remote area in southeastern Utah.The
stored energy and voltage support available through this VRB unit will
allow PacifiCorp to maintain reliable electric service in the area
while deferring the need to build a new substation. Because the unit
will be portable, it can be moved to another location as needed in the
future. The vanadium redox flow battery system has demonstrated an
ability to be applied in various energy storage applications. As the
development continues more applications will reveal its full
versatility and potential.