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VRB Energy Storage Flow Battery, Moab, Utah  *

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VRB Flow Battery
Headquartered in Vancouver, Canada, VRB Power Systems Inc. is an energy storage technology developer which is marketing, selling and manufacturing products utilizing the patented VRB Energy Storage System (“VRB-ESS™”). The VRB-ESS can economically store and supply large amounts of electricity on demand and is focused on stationary applications. It is a long life, cost effective, low maintenance, efficient technology that allows for the scalability of power and storage capacity independently. The VRB-ESS is particularly beneficial to renewable energy providers, utilities and end users through its ability to “inventory” electricity, allowing for the optimal match of supply and demand.

The VRB-ESS is well suited for a variety of applications. Enabling the provision of “firm” capacity from intermittent renewable generation such as wind and solar; more cost effective and efficient generation of electricity in remote areas; capital deferral for utilities; and load leveling (peak shaving) applications. The VRB-ESS is also capable of providing backup power solutions including applications for utility sub-stations and telecommunication sites.

The VRB-ESS is characterized by having the lowest ecological impact of all energy storage technologies and is unlike most other conventional energy storage systems that rely on substances such as lead or cadmium.

* PacifiCorp has a 200mile, 25kV distribution feeder near Moab in Utah. Increasing load at the end of the line has lead to voltage regulation problems. Several potential solutions were examined including conventional planning options such as line reinforcement, additional lines, substation upgrades and increased reactive compensation. PacifiCorp also evaluated the use of energy storage as an alternative. This proved to be the most economically attractive solution resulting in the installation of a 350kVa VRB-ESS rated at 2000kWh.  The system was commissioned in late 2003 and several studies are available. 

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