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compressed air battery

Critical Power Supplies adds Flow Battery’s backup system to portfolio

Tue, 08/05/2014 - 16:24 -- Anonymous
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Flow Battery compressed-air backup
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Energy solutions supplier Critical Power Supplies has added Flow Battery’s compressed-air battery system to its product portfolio.

The Pnu Power system for uninterruptible power supply (UPS) applications uses compressed-air cylinders to drive a scroll generator that is designed to deliver up to 4kW of AC or DC backup power, according to Flow Battery.

The compressed-air battery system aims to be more cost-effective in comparison to conventional UPS and more reliable than lead-acid batteries. The system has a low maintenance and a consistent performance, claimed Chester-based Flow Battery.

The service life of the Pnu Power range is expected to be more than 40 years.

Flow Battery recently installed a compressed-air backup at National Grid’s Elland substation in Yorkshire, UK.

UK compressed air collaboration hopes to challenge lead-acid

Fri, 04/04/2014 - 09:39 -- Anonymous
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UK compressed air collaboration hopes to challenge lead-acid
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A recent collaboration agreement between two UK-based power solutions firms, Critical Power Supplies and Flow Battery, could lead to new UPS market sector challenges.


The two companies will develop compressed air energy storage systems which they hope will challenge lead-acid batteries in the flywheel, fuel cell and large data centre UPS market sectors.  


The companies say they will supply a fully integrated package using compressed air cylinders to drive a scroll generator which can deliver up to 4kW of AC or DC backup power, with a run time determined by the amount of air available from the cylinder packs.


Flow Battery general manager James Derby said, “The system is designed to last for at least 40 years, with whole life costs that are significantly lower than those of large lead-acid battery installations. This is because our compressed air technology is inherently more reliable, durable and lower maintenance than traditional batteries. For example, all of the customer units installed have operated with zero maintenance requirements and 100 per cent reliability.


“Another major advantage of compressed air solutions is that they are tolerant of a wide range of environments and can be mounted outdoors, without any special engineering requirements,” he added. “The installation has been virtually plug-and-play, freeing up valuable space in the customer premises and has negated the need for other considerations such as ventilation and Ex engineering.”


Flow Battery’s compressed air systems are used by the UK and US National Grids. The company says it has been looking to actively partner with established firms in the UPS space.

Flowgroup supplies compressed air batteries to Canadian telecom

Thu, 03/27/2014 - 12:51 -- Anonymous
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Flowgroup, a UK energy technology developer, has received an order for two compressed air batteries totaling 150kW capacity from Trane Canada for a telecoms company.

Flowgroup’s air battery business, ambiguously named Flow Battery, will supply one 100kW and one 50kW compressed air battery units for a telephone exchange in Toronto which is part of a national network.

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