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Who were the original inventors of the
vanadium redox flow battery? |
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Albero Pellegri and Placido
Spaziante were the original pioneers of the vanadium redox flow
battery. Their patent was granted in 1978 in Great Britain ( GB 2 030
349 A 10) , France (FR2,431,196 ), Germany (2,927,868), Canada (CA
1,143,432) and Japan (55024389). |
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When will the Cellennium products/systems
be available for sale? |
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The vanadium battery/fuel cell
system is still under development. The first commercial system was
placed into operation December 2008 at Horseshoe Point Resort and
Country Club in Cholburi, Pattaya, Thailand. Several ongoing
demonstration projects, will continue this year, including
10kW and 50kW systems for stand-alone and grid-connect PV applications, as the factory tools up for mass
production. |
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What will be the power rating of the
smallest standard systems? |
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The smallest (commercial) systems
will start at about 3 kW. |
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How much will the vanadium fuel cell
systems cost? |
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Pricing has not been set, but we
expect our systems to be very price competitive with conventional
lead-acid battery system complete with charger and power inverter. |
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What is the normal operating temperature
regime? |
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The battery can do fine within a
wide range of temperatures. Typical operating temperatures range
between 50 and 80 degrees Celsius. |
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How does the power required for pumping
electrolytes compare between the Squirrel series flow design and
conventional parallel flow design? |
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For the Squirrel design power
required for pumping is less than 1% of the rated power of the battery.
This performance figure has been already verified by SGS (Singapore).
The power required for pumping by other redox flow battery designs
(i.e. parallel flow) is on the order of 8% to 15% of the rated power.
The key features of our design, cell-to-cell flow and electrolyte
channels, allow our systems to operate at flow rates at least 20 times
lower, with lower pressure, than conventional parallel flow designs. |
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